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As classified in WFO snapshot

June 2023

Warning: older classification

genus

Crataegus L.

This genus name was first published in Sp. Pl. : 475 (1753)

At the time of this classification snapshot, this genus name was accepted by WFO (placed as the accepted name of a taxon). Its description and other taxonomic data can be found on World Flora Online, id: wfo-4000009592.

Literature

Christensen, K. I. (1992). Revision of Crataegus Sect. Crataegus and Nothosect. Crataeguineae (Rosaceae-Maloideae) in the Old World. Systematic Botany Monographs, 35, 1. https://doi.org/10.2307/25027810
Sp. Pl. 1: 475. 1753 [1 Mai 1753] ; Gen. Pl. ed. 5, 213. 1754

Statistics

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All names in Crataegus (${formatNumber(totalForStatsWithKey('roles'))})

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Synonyms of Crataegus

Name	Author	Protologue	WFO link
Anthomeles	M.Roem.	Fam. Nat. Syn. Monogr. 3: 140 (1847)	wfo-4000002447
Crataego-mespilus	Simon-Louis	Rev. Hort. [Paris]. 71: 403, fig. 42. 1899 [1 Sep 1899]	wfo-4000009590
Oxyacantha	Medic	Philos. Bot. 1: 150 (1789)	wfo-4000027532

Species in Crataegus ( ${pageIsLoading?'loading':'showing'} species ${currentlyShowingRangeFirst} to ${currentlyShowingRangeLast} of ${ totalPartsCount })

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			— —	${synonym.id}

Unplaced Names

These names are not yet placed in the taxonomy, but may be associated with Crataegus:

Name	Author	Protologue	Nomenclator	WFO link
Crataegus abjecta	Sarg.	Proc. Acad. Nat. Sci. Philadelphia 57: 636. 1905		wfo-0000986586
Crataegus academiae	H.Lév.	Mem. Real Acad. Ci. Barcelona , n.s., 12(22): 19 (1916)		wfo-0001331357
Crataegus acanea	hort. ex Lavallée	Énum. Arbres 89, nomen. 1877		wfo-0000990344
Crataegus accincta	Sarg.	Proc. Acad. Nat. Sci. Philadelphia 62: 154. 1910		wfo-0000986587
Crataegus acerba	Sarg.	Bull. New York State Mus. Nat. Hist. 122: 93. 1908		wfo-0000986589
Crataegus acerifolia	Lodd. ex Moench	Verz. Ausländ. Bäume 31. 1785		wfo-0001013342
Crataegus aceroides	Lesq.	The flora of the Dakota group ; 1892 143, t.54,f.8,t.55,f.1 1892	—	wfo-0001014752
Crataegus acuminata	Desf. ex Steud.	Nomencl. Bot. [Steudel], ed. 2. i. 431.		wfo-0000990345
Crataegus acuminata	Sarg.	in N. Y. State Mus. Rep. 1905, App. 6, 56 (1906).		wfo-0000986592
Crataegus acuticarpa	(C.Reid & E.Reid) E.Reid	; 1920 125 1920	—	wfo-0001014591
Crataegus acutiloba	(Lesq.) Knowlt.	; 1916 255 1916	—	wfo-0001014755
Crataegus acutiloba	Sarg.	Rhodora 3(26): 23 (-24). 1901 [1 Feb 1901]		wfo-0000995155
Crataegus admiranda	Sarg.	Bull. New York State Mus. Nat. Hist. 122: 80. 1908		wfo-0000986594
Crataegus advena	Sarg.	Proc. Acad. Nat. Sci. Philadelphia 62: 175. 1910		wfo-0000986595
Crataegus aestivalis	Sarg.	J. Arnold Arbor. 1: 250. 1920		wfo-0000986596
Crataegus aestivalis var. cerasoides	Sarg.	J. Arnold Arbor. 1: 250. 1920		wfo-0001397805
Crataegus aestivalis var. dormonae	Ashe	Bull. Torrey Bot. Club 55: 464. 1928		wfo-0001399498
Crataegus aestivalis var. lucida	Kuntze	Revis. Gen. Pl. 1: 215. 1891 [5 Nov 1891]		wfo-0001398637
Crataegus aestivalis var. maloides	Sarg.	J. Arnold Arbor. 1: 250. 1920		wfo-0001399499
Crataegus affinis	Sarg.	Ontario Nat. Sci. Bull. no. 4: 71. 1908		wfo-0000986598
Crataegus agaia	Sarg.	Proc. Acad. Nat. Sci. Philadelphia 62: 252. 1910		wfo-0000986600
Crataegus aguilaris	Sennen	Fl. Catal. (Treb. Inst. Catal. Hist. Nat. 1917, 114) 60 (1917), in obs., nomen.		wfo-0000990348
Crataegus alabamensis var. florens	(Beadle) Lance	Phytoneuron 2011-3: 4. [2 Feb 2011]		wfo-0001040321
Crataegus alabamensis var. ravenelii	(Sarg.) Lance	Phytoneuron 2011-3: 4. [2 Feb 2011]		wfo-0001400274
Crataegus alabamensis var. teres	(Beadle) Lance	Phytoneuron 2011-3: 4. [2 Feb 2011]		wfo-0001040322
Crataegus alachuana	Murrill	Castanea 7: 20. 1942		wfo-0000986601
Crataegus alacris	Sarg.	Proc. Acad. Nat. Sci. Philadelphia 57: 601. 1905		wfo-0000986603
Crataegus albanthera	Sarg.	Rep. (Annual) Missouri Bot. Gard. 19: 53. 1908		wfo-0000986604
Crataegus albemarlensis	Ashe	J. Elisha Mitchell Sci. Soc. 17, pt. 2: 10. 1901		wfo-0000986605
Crataegus albicans var. tatnalliana	Farw.	Amer. Midl. Naturalist 12: 67. 1930		wfo-0001399500
Crataegus albicera	Beadle	Biltmore Bot. Stud. 1(2): 132. 1902 [30 Apr 1902]		wfo-0000983594
Crataegus alemanniensis var. orientobaltica	(Cinovskis) Cinovskis	Fl. Baltiĭskikh Respublik 2: 119 (1996):.		wfo-0001402498
Crataegus alemanniensis var. subborealis	(Cinovskis) Cinovskis	Fl. Baltiĭskikh Respublik 2: 119 (1996):.		wfo-0001402499
Crataegus aliena	Sarg.	Proc. Acad. Nat. Sci. Philadelphia 62: 157. 1910		wfo-0000986606
Crataegus allecta	Sarg.	Rep. Geol. Surv. Michigan 1906: 534. 1907		wfo-0000986607
Crataegus alleghaniensis var. extraria	(Beadle) Lance	Phytoneuron 2011-3: 2. [2 Feb 2011]		wfo-0001400267
Crataegus alleghaniensis var. ignava	(Beadle) Lance	Phytoneuron 2011-3: 2. [2 Feb 2011]		wfo-0001400268
Crataegus alleghaniensis var. mira	(Beadle) Lance	Phytoneuron 2011-3: 2. [2 Feb 2011]		wfo-0001400269
Crataegus almaatensis	Pojark.	Bot. Mater. Gerb. Bot. Inst. Komarova Akad. Nauk S.S.S.R. 12: 108. 1950		wfo-0000989533
Crataegus alnifolia	Regel	; 1871 125 1871	—	wfo-0001006131
Crataegus alnifolia	hort. ex Lavall.	Arbor. Segrez. 13.		wfo-0000990349
Crataegus alpestris	hort. ex K.Koch	Dendrologie 1: 144. 1869 [Jan 1869]		wfo-0000990350
Crataegus alpina	Gray	Nat. Arr. Brit. Pl. ii. 564.		wfo-0000990352
Crataegus alpista	Sarg.	Proc. Acad. Nat. Sci. Philadelphia 62: 238. 1910		wfo-0000986608
Crataegus altaica	Ledeb.	Catalogue of plants Catalogue of plants; 1814 1814	—	wfo-0001011573
Crataegus altrix	Ashe	Bot. Gaz. 33: 232. 1902		wfo-0000986610
Crataegus amabilis	Ashe	J. Elisha Mitchell Sci. Soc. xix. 15 (1903).		wfo-0000986611
Crataegus amara	Ashe	J. Elisha Mitchell Sci. Soc. 18, pt. 1: 22. 1902		wfo-0000986612
Crataegus ambigens	Sarg.	Proc. Acad. Nat. Sci. Philadelphia 62: 191. 1910		wfo-0000986613
Crataegus ambigua	C.A.Mey.	Index seminum quae hortus botanicus imperialis petropolitanus ; 1835 21 1859	—	wfo-0001011563
Crataegus americana	(DC.) Chalon	Bull. Soc. Roy. Bot. Belgique vii. 174 (1868).		wfo-0000990355
Crataegus aminii	Khat.	Iran. J. Bot. 5(1): 48 (1991).		wfo-0000990356
Crataegus amoena	Sarg.	Bull. New York State Mus. Nat. Hist. 122: 38. 1908		wfo-0000986614
Crataegus ampla	Sarg.	Proc. Acad. Nat. Sci. Philadelphia lvii. 615 (Sept. ). 1905		wfo-0001001837
Crataegus ampla	Sarg.	Proc. Acad. Nat. Sci. Philadelphia 57: 615. 1905		wfo-0001004040
Crataegus ampliata	Sarg.	Proc. Acad. Nat. Sci. Philadelphia 62: 195. 1910		wfo-0000986615
Crataegus amplifica	Sarg.	Proc. Acad. Nat. Sci. Philadelphia 62: 172. 1910		wfo-0000986616
Crataegus amygdaliformis	(Vill.) Chalon	Bull. Soc. Roy. Bot. Belgique vii. 174 (1868).		wfo-0000990359
Crataegus androssovii	Essenova & Kerimova	Izv. Akad. Nauk Turkmensk. S.S.R., Ser. Biol. Nauk 1976(2): 72 (1976)		wfo-0000989544
Crataegus androssovii	Essenova & Kerimova	–	—	wfo-0001131853
Crataegus angulata	Sarg.	Proc. Acad. Nat. Sci. Philadelphia 62: 166 (1910)		wfo-0001017476
Crataegus angustata	Lindm.	Boyaryschniki pribaltiki- Crataegi baltici ; 1971 38 1971	—	wfo-0000990115
Crataegus angustata	Sarg.	Rep. (Annual) Missouri Bot. Gard. 19: 77. 1908		wfo-0000986618
Crataegus angustifolia	Borkh.	Arch. Bot. [Leipzig] 1(3): 86. 1798 [Jul-Dec 1798]		wfo-0000990360
Crataegus angustisepala	Sarg.	Proc. Acad. Nat. Sci. Philadelphia 62: 209. 1910		wfo-0000986619
Crataegus anomala	Sarg.	–	—	wfo-0001245747
Crataegus antheina	Sarg.	Proc. Acad. Nat. Sci. Philadelphia 62: 213. 1910		wfo-0000986621
Crataegus antimima	Sarg.	J. Arnold Arbor. 3: 191. 1922 [Dec 1922]		wfo-0000986622
Crataegus aperta	Sarg.	Rep. (Annual) Missouri Bot. Gard. 19: 96. 1908		wfo-0000986623
Crataegus apiifolia	Borkh.	Theoretisches-praktisches Handbuch der Forstbotanik und Forsttechnologie ; 1800 1343 1803	—	wfo-0001009354
Crataegus apiifolia	hort.	ex Handl. Trees Kew Pt. i. [Polypet.] (1894) 205.		wfo-0000990362
Crataegus apiomorpha	Sarg.	–	—	wfo-0001245748
Crataegus apposita var. bissellii	Eggl.	Rhodora 10: 76. 1908		wfo-0001399503
Crataegus aquilonaris	Sarg.	Rhodora 5: 185. 1903		wfo-0001001605
Crataegus araioclada	Sarg.	J. Arnold Arbor. 3: 5. 1922		wfo-0000986625
Crataegus araneosa	R.Doll	Natur Naturschutz Mecklenburg 13: 11 (1975)		wfo-0000988121
Crataegus arborescens	Späth	Sp„th Catalogue ; 1720 91 1890	—	wfo-0001008045
Crataegus arbutifolia	Desf. ex Steud.	Nomencl. Bot. [Steudel], ed. 2. i. 431.		wfo-0000990364
Crataegus arbutifolia	Dryand.	Hortus kewensis ; 1810 202 1811	—	wfo-0001013131
Crataegus arcuata	Ashe	Ann. Carnegie Mus. 1: 387. 1902		wfo-0000986626
Crataegus aria var. fennica	Kalm ex L.	Flora svecica ; 1755 167 1755	—	wfo-0001007755
Crataegus aria var. scandica	L.	Amoenitates academicae ; 1749 190 1764	—	wfo-0000985467
Crataegus aridula	Sarg.	Bull. New York State Mus. Nat. Hist. 122: 43. 1908		wfo-0000986629
Crataegus ariifolia	Kalen.	Bull. Soc. Imp. Naturalistes Moscou 48(3): 32 (-34). 1874 (as ariaefolia)		wfo-0001354129
Crataegus aristata	Sarg.	Bull. New York State Mus. Nat. Hist. 150: 27. 1911		wfo-0000986631
Crataegus armata	Beadle	Biltmore Bot. Stud. 1(2): 136. 1902 [30 Apr 1902]		wfo-0000983597
Crataegus armigera	Sarg.	Ontario Nat. Sci. Bull. no. 4: 87. 1908		wfo-0000986632
Crataegus aronia	(L.) Steud.	Nomencl. Bot. [Steudel] 1: 233. 1821 [Apr - Jun 1821]		wfo-1200040840
Crataegus arta	Beadle	Biltmore Bot. Stud. 1(2): 130. 1902 [30 Apr 1902]		wfo-0000983593
Crataegus ascendens	Sarg.	Rhodora 5: 141. 1903		wfo-0001001506
Crataegus asperata	Sarg.	Rep. Geol. Surv. Michigan 1906: 542. 1907		wfo-0000986633
Crataegus assadii	Khat.	Iran. J. Bot. 5(1): 48 (1991).		wfo-0000990366
Crataegus atrocarpa	E.L.Wolf	Arboretum Imp. For. Inst. ii. 24 (Bull. Imp. For. Inst. St. Petersburg, xv.1907).		wfo-0000990103
Crataegus atrofusca	Steven ex Fisch. & C.A.Mey.	Bull. Soc. Imp. Naturalistes Moscou 12: 366. 1839		wfo-0000990367
Crataegus atropurpurea	Steven ex Nyman	Consp. Fl. Eur. 2: 244. 1879 [Oct 1879]		wfo-0000990369
Crataegus atrovirens	J.B.Phipps & O'Kennon	Sida 20(1): 141 (2002).		wfo-0001005524
Crataegus attenuata	Ashe	J. Elisha Mitchell Sci. Soc. xix. 30 (1903).		wfo-0001000551
Crataegus aucuparia	Salisb.	Prodr. Stirp. Chap. Allerton 357. 1796 [Nov-Dec 1796]		wfo-0000990371
Crataegus augusta	Sarg.	Proc. Acad. Nat. Sci. Philadelphia 57: 597. 1905		wfo-0000986617
Crataegus aulica	Sarg.	–	—	wfo-0001245750
Crataegus aurea	hort.	ex Handl. Trees Kew Pt. i. [Polypet.] (1894) 209.		wfo-0000990372
Crataegus austera	Salisb.	Prodr. Stirp. Chap. Allerton 357. 1796 [Nov-Dec 1796]		wfo-0000990373
Crataegus austera	Sarg.	Proc. Acad. Nat. Sci. Philadelphia 57: 586. 1905		wfo-0000986636
Crataegus austromoravica	Hrabětová	Preslia 45: 35 (1973)		wfo-0000988157
Crataegus axillaris	Pers.	Syn. Pl. [Persoon] 2(1): 39. 1806 [Nov 1806]		wfo-0001002735
Crataegus azarolus	Hohen.	Enumeratio plantarum quas in itinere per provinciam Talysch ; 1838 130 1838	—	wfo-0001006900
Crataegus azarolus subsp. ruscinonensis	(Gren. & Blanc) Nyman	Conspectus florae europaeae ; 1878 243 1879	—	wfo-0000984514
Crataegus azarolus var. assadii	(Khat.) K.I.Chr.	Nordic J. Bot. 26(5-6): 345. 2009 [2008 publ. 26 Jan 2009]		wfo-0001400085
Crataegus azarolus var. dentata	(Browicz) Dönmez	PhytoKeys 122: 3. 2019		wfo-1200008763
Crataegus azarolus var. minuta	(Browicz) Dönmez	PhytoKeys 122: 4. 2019		wfo-1200008764
Crataegus azarolus var. senobaaensis	Dönmez	PhytoKeys 122: 4. 2019		wfo-1200008765
Crataegus azarolus var. sharania	Zeravan	Nordic J. Bot. 23(6): 715 (713-717; figs. 1, 4(3)). 2006 [24 Apr 2006]		wfo-0001399962
Crataegus babakhanloui	Khat.	Iran. J. Bot. 5(1): 52 (1991).		wfo-0000990374
Crataegus baccata	Sarg.	Rhodora 7: 176. 1905		wfo-0001001640
Crataegus badiata	Bosc ex Koehne	Deutsche Dendrologie ; 1893 233 1893	—	wfo-0001008051
Crataegus barbara	Sarg.	Bull. New York State Mus. Nat. Hist. 122: 33. 1908		wfo-0000986637
Crataegus barbata	Sarg.	Rep. (Annual) Missouri Bot. Gard. 19: 63. 1908		wfo-0000986638
Crataegus barryana	Sarg.	Bull. New York State Mus. Nat. Hist. 122: 52. 1908		wfo-0000986641
Crataegus bartoniana	Sarg.	Proc. Acad. Nat. Sci. Philadelphia 57: 637. 1905		wfo-0000986642
Crataegus bartramiana	Sarg.	Proc. Acad. Nat. Sci. Philadelphia 57: 582. 1905		wfo-0000986643
Crataegus bastardii	Gand.	Bull. Soc. Bot. France 18: 448 (1871 publ. 1872)		wfo-0000987419
Crataegus baxteri	Sarg.	Proc. Rochester Acad. Sci. 4: 107. 1903		wfo-0000986644
Crataegus bealii	Sarg.	Rep. Geol. Surv. Michigan 1906: 553. 1907		wfo-0000986645
Crataegus beata var. compta	(Sarg.) Eggl.	Rhodora 10: 81. 1908 [4 Jun 1908]		wfo-0001390853
Crataegus beckwithae	Sarg.	Proc. Rochester Acad. Sci. 4: 124. 1903		wfo-0000986646
Crataegus bedfordensis	Sarg.	Proc. Acad. Nat. Sci. Philadelphia 62: 185. 1910		wfo-0000986647
Crataegus bella	Sarg.	Bull. New York State Mus. Nat. Hist. 122: 61. 1908		wfo-0000986649
Crataegus bellatula	Sarg.	Proc. Acad. Nat. Sci. Philadelphia 62: 171. 1910		wfo-0000986650
Crataegus bellica	Sarg.	Trees & Shrubs [Sargent] 2: 236. 1913		wfo-0000995703
Crataegus bellula	Sarg.	Trees & Shrubs [Sargent] 1: 111. 1903		wfo-0001002635
Crataegus benearnensis	Gand.	Herborisations dans les Pyr‚n‚es ; 1884 40 1884	—	wfo-0001010158
Crataegus benigna	Sarg.	Proc. Rochester Acad. Sci. 4: 127. 1903		wfo-0000986651
Crataegus bergiana	R.Doll	Natur Naturschutz Mecklenburg 13: 13 (1975)		wfo-0000989576
Crataegus berlandieri	Sarg.	Bot. Gaz. 31: 230. 1901		wfo-0001017441
Crataegus berolinensis	Cinovskis	Boyaryshniki Pribaltiki 209. 1971		wfo-0000990102
Crataegus betulifolia	hort. ex Dippel	Handbuch der Laubholzkunde ; 1889 424 1893	—	wfo-0001008033
Crataegus bicolor	Ashe	J. Elisha Mitchell Sci. Soc. 17, pt. 2: 12. 1901		wfo-0000986652
Crataegus bipinnatifida	hort. ex Wila	Möller's Deutsche Gärtn.-Zeitung 1932, xlvii. 136.		wfo-0000990375
Crataegus bissellii	Sarg.	Rhodora 5: 65. 1903		wfo-0001000692
Crataegus blairensis	Sarg.	Proc. Acad. Nat. Sci. Philadelphia 62: 193. 1910		wfo-0000986654
Crataegus blanchardii	Sarg.	Rhodora 7: 218. 1905		wfo-0000995100
Crataegus blockwayae	Sarg.	Trees & Shrubs ii. 245 (1913).		wfo-0000990376
Crataegus bohemica	Hrabětová	Preslia 45: 109 (1973)		wfo-0000988188
Crataegus boothiana	Sarg.	Bull. New York State Mus. Nat. Hist. 122: 58. 1908		wfo-0000986655
Crataegus borealis	Ashe	North Carolina Agric. Exp. Sta. Bull. no. 175: 111. 1900		wfo-0000986656
Crataegus bornmuelleri	Zabel	Handbuch der Laubholzbenennung ; 1903 179 1903	—	wfo-0000987346
Crataegus bosceana	hort.	–	—	wfo-0001005986
Crataegus bosciana	M.Roem.	Syn. Rosifl. iii. 119. 1847 [Apr 1847]		wfo-0000990377
Crataegus boscii	hort. ex Lavallée	Énum. Arbres 90, nomen. 1877		wfo-0000990378
Crataegus boyntonii var. buckleyi	Ashe	J. Elisha Mitchell Sci. Soc. 34: 139. 1918		wfo-0001399505
Crataegus brachyacantha f. leucocarpa	Sarg.	J. Arnold Arbor. 3: 10. 1922		wfo-0001325578
Crataegus brachyacantha var. maxima	Kuntze	Revis. Gen. Pl. 1: 215. 1891 [5 Nov 1891]		wfo-0001398636
Crataegus brachyloba	Sarg.	Bull. New York State Mus. Nat. Hist. 122: 75. 1908		wfo-0000986658
Crataegus brachypoda	Sarg.	Rep. (Annual) Missouri Bot. Gard. 19: 100. 1908		wfo-0000995303
Crataegus bracteata	Sarg.	Rep. (Annual) Missouri Bot. Gard. 19: 91. 1908		wfo-0000995149
Crataegus brandenii	R.Doll	Natur Naturschutz Mecklenburg 13: 13 (1975)		wfo-0000989595
Crataegus brevipedicellata	Ashe	J. Elisha Mitchell Sci. Soc. 17: 6. 1900		wfo-0000986659
Crataegus brevipedunculata	K.Schum.	Just's Bot. Jahresber. 28(1): 453, sphalm. 1902		wfo-0000990380
Crataegus brevispina	Douglas ex Steud.	Nomencl. Bot. [Steudel], ed. 2. 1: 432. 1840		wfo-0000990381
Crataegus bristolensis	Sarg.	Rhodora 7: 175. 1905		wfo-0001001630
Crataegus brockwayae	Sarg.	Trees & Shrubs [Sargent] 2: 245. 1913		wfo-0000995998
Crataegus bronxensis	Sarg.	Bull. New York State Mus. Nat. Hist. 122: 115. 1908		wfo-0000986660
Crataegus brownietta	Sarg.	New York State Mus. Bull. 167: 78. 1913		wfo-0000986661
Crataegus brownii	Britton	Bull. New York Bot. Gard. 1: 447. 1900		wfo-0000986662
Crataegus bruantii	hort.	ex Handl. Trees Kew Pt. i. [Polypet.] (1894) 205.	—	wfo-0000990382
Crataegus buistii	hort. ex K.Koch	Dendrologie ; 1869 144 1869	—	wfo-0000989137
Crataegus burkeana	Sarg.	Proc. Acad. Nat. Sci. Philadelphia 62: 218. 1910		wfo-0000986663
Crataegus caerulescens	Sarg.	J. Arnold Arbor. 3: 193. 1922 [Dec 1922]		wfo-0000995259
Crataegus caesa	Ashe	; 1902 24 1902	—	wfo-0000986664
Crataegus caesa	Sarg.	–	—	wfo-0001006551
Crataegus calcarigena	Salisb.	Prodromus stirpium in horto ad Chapel Allerton vigentium ; 1796 357 1796	—	wfo-0001010159
Crataegus calciphila	Hrabětová	Spisy Prír. Fak. Masarykovy Univ. 378: 433 (1956)		wfo-0000988230
Crataegus calciphila var. hadensis	Hrabětová	Preslia 45: 110 (1973)		wfo-0001387620
Crataegus californica	hort.	ex Handl. Trees Kew Pt. i. [Polypet.] (1894) 207.		wfo-0000990385
Crataegus calliantha	Sarg.	Rep. (Annual) Missouri Bot. Gard. 19: 93. 1908		wfo-0000986667
Crataegus callista	Sarg.	Proc. Acad. Nat. Sci. Philadelphia 62: 237. 1910		wfo-0000986669
Crataegus callosa	Sarg.	Proc. Acad. Nat. Sci. Philadelphia 57: 595. 1905		wfo-0000986670
Crataegus calophylla	Sarg.	Rep. (Annual) Missouri Bot. Gard. 22: 67. 1911		wfo-0000986671
Crataegus calpodendron	(Ehrh.) Borkh.	; 1798 87 1798	—	wfo-0000990386
Crataegus calvescens	Sarg.	Proc. Acad. Nat. Sci. Philadelphia 62: 159. 1910		wfo-0000986672
Crataegus calvinii	Sarg.	Bull. New York State Mus. Nat. Hist. 122: 81. 1908		wfo-0000986673
Crataegus calycina	Franco	Flora Europaea Vol. 2 ; 1968 75 1968	—	wfo-0001010160
Crataegus calycina	Peterm.	Anal. Pfl.-Schlüss. : 135 (1846)		wfo-0000988251
Crataegus calycina	Peterm.	Anal. Pfl.-Schlüss. : 135 (1846)		wfo-0001263196
Crataegus calycina	Peterm. ex Nyman	Consp. Fl. Eur. 2: 244. 1879 [Oct 1879]	—	wfo-0000990387
Crataegus calycina subsp. calycina	–	–	—	wfo-0000984405
Crataegus calycina subsp. curvisepala	(Lindm.) Franco	; 1968 39 1968		wfo-0000997590
Crataegus campestris	Britton	Bull. New York Bot. Gard. 1: 449. 1900		wfo-0000986674
Crataegus candens	Sarg.	Rep. (Annual) Missouri Bot. Gard. 19: 55. 1908		wfo-0000986675
Crataegus carnosa	Ashe	J. Elisha Mitchell Sci. Soc. 17, pt. 2: 14. 1901		wfo-0000986677
Crataegus caroliniana	Pers.	Syn. Pl. 2: 36 (1806)		wfo-0001012004
Crataegus casta	Sarg.	Bull. New York State Mus. Nat. Hist. 105, Bot. 9: 53. 1906		wfo-0000986678
Crataegus castlegarensis	J.B.Phipps & O'Kennon	Sida 20(1): 121 (2002).		wfo-0001005520
Crataegus catawbiensis	Ashe	J. Elisha Mitchell Sci. Soc. 17: 6. 1900		wfo-0000986679
Crataegus celsa	Sarg.	–	—	wfo-0001245751
Crataegus cerasina	hort. ex Dippel	Handbuch der Laubholzkunde ; 1889 456 1893	—	wfo-0001008055
Crataegus cerasoides	Sarg.	Trees & Shrubs [Sargent] 2: 237. 1913		wfo-0000995742
Crataegus ceratocarpa	Kossych	Bjull. Glavn. Bot. Sada 57: 79 (1963)		wfo-0000988275
Crataegus cerea	Gruber	; 1905 656 1905	—	wfo-0000986635
Crataegus cernua	Ashe	J. Elisha Mitchell Sci. Soc. 18, pt. 1: 25. 1902		wfo-0000986681
Crataegus cestrica	Sarg.	Proc. Acad. Nat. Sci. Philadelphia 57: 596. 1905		wfo-0000986683
Crataegus chadsfordiana	Sarg.	–	—	wfo-0001245752
Crataegus chateaugayensis	Sarg.	Bull. New York State Mus. Nat. Hist. 122: 121. 1908		wfo-0000986684
Crataegus chinensis	Steud.	Nomencl. Bot. [Steudel], ed. 2. i. 432.	—	wfo-0000990389
Crataegus chinensis	hort.	–	—	wfo-0001006005
Crataegus chippewaensis	Sarg.	Ontario Nat. Sci. Bull. 4: 44 (1908)		wfo-0000995051
Crataegus chlorosarca	Koidz.	Icones plantarum koisikavenses ; 1911 51, pl.26 1912	—	wfo-0000999370
Crataegus chlorosarca var. atrocarpa	(E.L.Wolf) Cinovskis	Boyaryshniki Pribaltiki 192. 1971		wfo-0001401181
Crataegus christensenii	Dönmez	Bot. J. Linn. Soc. 155(2): 234 (-236; fig. 3, map). 2007 [3 Oct 2007]		wfo-0001356209
Crataegus chrysocarpa var. brunetiana	(Sarg.) Kruschke	–		wfo-0001392197
Crataegus chrysocarpa var. duchesnensis	S.L.Welsh	Great Basin Naturalist 42(1): 10. 1982		wfo-0001401564
Crataegus chrysocarpa var. phoenica	E.J.Palmer	–		wfo-0001392508
Crataegus chrysophyta	Ashe	–	—	wfo-0000990098
Crataegus ciliata	Ashe	J. Elisha Mitchell Sci. Soc. 17: 13. 1900		wfo-0000986688
Crataegus cinovskisii	T.A.Kasumova	Bot. Zhurn. (Moscow & Leningrad) 70: 266 (1985)		wfo-0000988321
Crataegus cirrata	Ashe	Bull. Charleston Mus. 12: 42. 1916		wfo-0000986689
Crataegus cispontica	Ufimov	Novosti Sist. Vyssh. Rast. 44: 121. 2013 [28 Dec 2013]		wfo-0001356434
Crataegus claytoniana	Sarg.	Bull. New York State Mus. Nat. Hist. 122: 120. 1908		wfo-0000986690
Crataegus clintoniana	Sarg.	Bull. New York State Mus. Nat. Hist. 122: 39. 1908		wfo-0000986691
Crataegus coccinea	Eggl.	A manual of the botany of the Northern United States ; 1908 466 1908	—	wfo-0000988148
Crataegus coccinea	Lindl.	Edwards's botanical register; or, ornamental flower-garden and shrubbery ; 1829 t.1957 1837	—	wfo-0000987432
Crataegus coccinea	Sarg.	; 1901 11 1901	—	wfo-0000986696
Crataegus coccinea subsp. eglandulosa	Schuette	Proc. Biol. Soc. Washington 16(Sign. 25): 97. 1903. [25 Jun 1903]		wfo-0001368100
Crataegus coccinea var. cuneata	Wender.	Index Seminum [Marburg] 1825: 6. [1825]		wfo-0001398674
Crataegus coccinea var. ellwangeriana	(Sarg.) Eggl.	Bull. New York State Mus. Nat. Hist. 243: 64. 1923 [dt. 1921; issued 1923]		wfo-0001398925
Crataegus coccinea var. fulleriana	(Sarg.) J.A.Macklin & J.B.Phipps	Phytoneuron 2011-29: 1 (2011)		wfo-0001383958
Crataegus coccinea var. indentata	Lodd. ex Loudon	Arboretum et fruticetum britannicum ; 1838 817, f.566 1838	—	wfo-0000990317
Crataegus coccinea var. oligandra	Torr. & A.Gray	Fl. N. Amer. (Torr. & A. Gray) 1(3): 465. 1840 [Jun 1840]		wfo-0001399509
Crataegus coccinea var. pringlei	(Sarg.) J.A.Macklin & J.B.Phipps	J. Bot. Res. Inst. Texas 1: 1005 (2007)		wfo-0001383330
Crataegus coccinea var. subvillosa	(M.Roem.) Lange	Revis. Cratag. 31. 1897		wfo-0001399510
Crataegus coccinea var. viridis	(L.) Torr. & A.Gray	Fl. N. Amer. (Torr. & A. Gray) 1(3): 465. 1840 [Jun 1840]		wfo-0001399511
Crataegus coerulea	Sarg.	Proc. Acad. Nat. Sci. Philadelphia 62: 207. 1910		wfo-0000986697
Crataegus cogswellii	K.I.Chr. & T.A.Dickinson	PhytoKeys 36: 19. 2014 [9 Apr 2014] [epublished]		wfo-0001356466
Crataegus collinsiana	Sarg.	Proc. Acad. Nat. Sci. Philadelphia 57: 611. 1905		wfo-0000986698
Crataegus colorata	Sarg.	Proc. Rochester Acad. Sci. 4: 123. 1903		wfo-0000986701
Crataegus columbiana	Sarg.	Bot. Gaz. 31: 229. 1901		wfo-0001017440
Crataegus comans	Sarg.	Bull. New York State Mus. Nat. Hist. 122: 112. 1908		wfo-0000986703
Crataegus comata	Sarg.	Proc. Acad. Nat. Sci. Philadelphia 57: 592. 1905		wfo-0000986704
Crataegus comparata	Sarg.	Trees & Shrubs [Sargent] 2: 240. 1913		wfo-0000995810
Crataegus compatalis	Ashe	Bull. Charleston Mus. 12: 43. 1916		wfo-0000986705
Crataegus condensa	Sarg.	Proc. Acad. Nat. Sci. Philadelphia 57: 617. 1905		wfo-0000986706
Crataegus conferta	Sarg.	Bull. New York State Mus. Nat. Hist. 122: 62. 1908		wfo-0000986707
Crataegus confragosa	Sarg.	Ontario Nat. Sci. Bull. 4: 24 (1908)		wfo-0001011447
Crataegus congestiflora	Sarg.	Bull. New York State Mus. Nat. Hist. 122: 44. 1908		wfo-0000986710
Crataegus conjuncta	Sarg.	Rhodora 5: 57. 1903		wfo-0000995336
Crataegus conspicua	Sarg.	Bull. New York State Mus. Nat. Hist. 105, Bot. 9: 74. 1906		wfo-0000986712
Crataegus consueta	Sarg.	Rep. (Annual) Missouri Bot. Gard. 19: 67. 1908		wfo-0000986714
Crataegus contigua	Sarg.	Rhodora 5: 115. 1903		wfo-0001001461
Crataegus contortifolia	Sarg.	in N. Y. State Mus. Rep. 1905, App. 6, 59 (1906).		wfo-0000986715
Crataegus contortula	Sarg.	Proc. Acad. Nat. Sci. Philadelphia 62: 236. 1910		wfo-0000986716
Crataegus corallina	Hort.Par. ex Pers.	Syn. Pl. [Persoon] 2(1): 36. 1806 [Nov 1806]		wfo-0000990104
Crataegus cordata	Elliott	Sketch Bot. S. Carolina [Elliott] 1: 554. 1821		wfo-0000990391
Crataegus cordato	Mill.	The gardeners dictionary: eighth edition ; 1768 Crataegus no.4 1768	—	wfo-0001006548
Crataegus cordifolia	Farw.	Amer. Midl. Naturalist 12: 62. 1930		wfo-0000986717
Crataegus cordifolia	Mill.	The gardeners dictionary: eighth edition ; 1768 corrections 1768	—	wfo-0001006547
Crataegus cordifolia var. borealis	Farw.	Amer. Midl. Naturalist 12: 63. 1930		wfo-0001399513
Crataegus cordifolia var. matura	Farw.	Amer. Midl. Naturalist 12: 63. 1930		wfo-0001399514
Crataegus cordifolia var. pastorum	Farw.	Amer. Midl. Naturalist 12: 63. 1930		wfo-0001399515
Crataegus coriacea	Sol.	Trans. Linn. Soc. London 13(1): 104. 1821 [23 May-21 Jun 1821]		wfo-0000987326
Crataegus cornellii	Sarg.	Bull. New York State Mus. Nat. Hist. 122: 105. 1908		wfo-0000986719
Crataegus coronaria	Salisb.	Prodr. Stirp. Chap. Allerton 357. 1796 [Nov-Dec 1796]		wfo-0000990392
Crataegus corporea	Sarg.	Bot. Gaz. 35: 403. 1903		wfo-0001017462
Crataegus corusca f. blothra	(Laughlin) Kruschke	Milwaukee Public Mus. Publ. Bot. 3: 187. 1965 [1 Feb 1965]		wfo-0001325174
Crataegus cosansasi	Herb.Lugd.Bat. ex K.Koch	Wochenschr. Vereines Beförd. Gartenbaues Königl. Preuss. Staaten 5: 396 (1862)		wfo-0000990393
Crataegus cotoneaster	Borkh.	in Roem. Aroh. i. III. 87.		wfo-0000990394
Crataegus coursetiana	M.Roem.	Syn. Rosifl. 117. 1847 [Apr 1847]		wfo-0000990395
Crataegus crassa	Ashe	J. Elisha Mitchell Sci. Soc. 17, pt. 2: 18. 1901		wfo-0000986721
Crataegus cretica	Desf.	Choix Pl. Coroll. 79. 1808 [Nov 1808]		wfo-0000990396
Crataegus cristata	Ashe	Ann. Carnegie Mus. 1: 392. 1902		wfo-0000986722
Crataegus crocata	Ashe	Ann. Carnegie Mus. 1: 389. 1902		wfo-0000986723
Crataegus croomiana	Sarg.	J. Arnold Arbor. 3: 202. 1922 [Dec 1922]		wfo-0000986724
Crataegus cruda	Sarg.	Bull. New York State Mus. Nat. Hist. 122: 54. 1908		wfo-0000986725
Crataegus cruenta	Ashe	J. Elisha Mitchell Sci. Soc. 17, pt. 2: 16. 1901		wfo-0000986726
Crataegus crus-galli	Du Roi	Harbk. Baumz. ed. I. i. 183.		wfo-0000990398
Crataegus crus-galli	Rigel.	Fl. Boston., ed. 2 194. 1824 [28 Jun 1824]		wfo-0000990397
Crataegus crus-galli f. oblongata	(Sarg.) E.J.Palmer	Brittonia 5: 482. 1946		wfo-0001325579
Crataegus crus-galli f. rubens	(Sarg.) E.J.Palmer	Brittonia 5: 482. 1946		wfo-0001017179
Crataegus crus-galli f. spinulosa	Rickett	Bot. Gaz. 98: 613. 1937		wfo-0001325580
Crataegus crus-galli f. staminea	Rickett	Bot. Gaz. 98: 613. 1937		wfo-0001325581
Crataegus crus-galli var. angustifolia	Sudw.	Bull. Div. Forest. U.S.D.A. 14: 217. 1897		wfo-0001399516
Crataegus crus-galli var. attenuata	Farw.	Rep. (Annual) Michigan Acad. Sci. 20: 181. 1918		wfo-0001399517
Crataegus crus-galli var. danielsii	(E.J.Palmer) Rickett	Bot. Gaz. 98: 615. 1937		wfo-0001399518
Crataegus crus-galli var. fontanesiana	Dippel	Ill. Handb. Laubholzk. [C.K.Schneider] 3: 442. 1893		wfo-0001399519
Crataegus crus-galli var. nana	(Dum.Cours.) DC.	Prodr. [A. P. de Candolle] 2: 626. 1825 [mid Nov 1825]		wfo-0001399520
Crataegus crus-galli var. ovalifolia	(Hornem.) Loudon	–		wfo-0001390981
Crataegus crus-galli var. prunellifolia	Sudw.	Bull. Div. Forest. U.S.D.A. 14: 216. 1897		wfo-0001399521
Crataegus crus-galli var. regalis	(Beadle) J.B.Phipps	Novon 16(3): 385. 2006 [7 Nov 2006]		wfo-0001400032
Crataegus crus-galli var. rubens	Sarg.	Bull. New York State Mus. Nat. Hist. 167: 75 (1913)		wfo-0001017196
Crataegus crus-galli var. splendens	Aiton	Hort. Kew. [W. Aiton] 2: 170. 1789		wfo-0000985611
Crataegus crux	Ashe	J. Elisha Mitchell Sci. Soc. 18, pt. 1: 17. 1902		wfo-0000986727
Crataegus culta	Sarg.	Rhodora 7: 199. 1905		wfo-0001001792
Crataegus cuneifolia	Lodd. ex Koehne	Deutsche Dendrologie ; 1893 232 1893	—	wfo-0001008048
Crataegus cuprea	Sarg.	Bot. Gaz. 35: 105. 1903		wfo-0001017445
Crataegus cupulifera	Sarg.	Proc. Rochester Acad. Sci. 4: 129. 1903		wfo-0000986729
Crataegus curabilis	Ashe	Bull. Charleston Mus. 12: 43. 1916		wfo-0000986731
Crataegus curcina	Doll	Gleditschia 2: 12. 1975 [1974 publ. 1975]		wfo-0000989624
Crataegus curonica	Cinovskis	Crat. Balt. : 76 (1971)		wfo-0000989626
Crataegus curtisii	Ashe	North Carolina Agric. Exp. Sta. Bull. no. 175: 109. 1900		wfo-0000986732
Crataegus curvisepala var. aceriformis	Hrabětová	Preslia 52: 57 (1980)		wfo-0001387621
Crataegus cuspidata	Spach	Hist. Nat. Vég. 2: 106 (1834)		wfo-0001016799
Crataegus cuthbertii	Ashe	J. Elisha Mitchell Sci. Soc. 17: 15. 1900		wfo-0000986733
Crataegus cyclophylla	Sarg.	Rhodora 7: 210. 1905		wfo-0001001847
Crataegus cydonia	Gruber	Bull. Torrey Bot. Club 32: 390. 1905		wfo-0000986734
Crataegus dabelowa	R.Doll	Natur Naturschutz Mecklenburg 13: 15 (1975)		wfo-0000988371
Crataegus dacrioidea	Sarg.	Proc. Acad. Nat. Sci. Philadelphia 62: 224. 1910		wfo-0000986738
Crataegus daghestanica	Gladkova	Novosti Sist. Vyssh. Rast. 30: 97 (1996).		wfo-0001005769
Crataegus damei	Sarg.	Rhodora 7: 200. 1905		wfo-0001001794
Crataegus danielsii	Palmer	–	—	wfo-0001245755
Crataegus danielsii f. glabra	E.J.Palmer	J. Arnold Arbor. 16: 357. 1935		wfo-0001325582
Crataegus dapsilis f. serotina	Murrill	Castanea 7: 21. 1942		wfo-0001325583
Crataegus darlingtoniana	Sarg.	Proc. Acad. Nat. Sci. Philadelphia 57: 653. 1905		wfo-0000986740
Crataegus dasyphylla	Sarg.	Rep. (Annual) Missouri Bot. Gard. 22: 80. 1911		wfo-0000986741
Crataegus dawsoniana	Sarg.	Rep. (Annual) Missouri Bot. Gard. 19: 88. 1908		wfo-0000986743
Crataegus debeauxii	Cand.	Bull. Soc. Dauphin. Échange Pl. iv. 114 (1877).		wfo-0001010156
Crataegus debilis	Sarg.	Ontario Nat. Sci. Bull. 4: 86. 1908		wfo-0000986745
Crataegus debilis	Sennen	Exsiccata "Plantes d'Espagne" ; 1906 no.5304 1925	—	wfo-0001010165
Crataegus decens	Ashe	J. Elisha Mitchell Sci. Soc. 19, pt. 1: 19. 1903		wfo-0000986746
Crataegus decipiens	Hay	Proc. Biol. Soc. Washington 16: 184. 1903 [31 Dec 1903] : a sphalm.		wfo-0000988396
Crataegus declivitatis	Sarg.	Rep. (Annual) Missouri Bot. Gard. 19: 103. 1908		wfo-0000986747
Crataegus decora	Ashe	J. Elisha Mitchell Sci. Soc. 18, pt. 1: 17. 1902		wfo-0000986748
Crataegus decorata	Sarg.	Rep. (Annual) Missouri Bot. Gard. 19: 94. 1908		wfo-0000986750
Crataegus deducta	Sarg.	Proc. Acad. Nat. Sci. Philadelphia 57: 602. 1905		wfo-0000986751
Crataegus definita	Sarg.	Proc. Acad. Nat. Sci. Philadelphia 57: 647. 1905		wfo-0000986752
Crataegus delectabilis	Sarg.	Ontario Nat. Sci. Bull. no. 4: 90. 1908		wfo-0000986754
Crataegus delectata	Sarg.	Proc. Acad. Nat. Sci. Philadelphia 62: 200. 1910		wfo-0000986755
Crataegus delicata	Sarg.	Proc. Acad. Nat. Sci. Philadelphia 57: 606. 1905		wfo-0000986756
Crataegus deltoxyacantha	(Pénzes) T.Baranec	Acta Dendrol. 11: 26 (1986)		wfo-0000989654
Crataegus delucida	Sarg.	Rhodora 5: 139. 1903		wfo-0001001484
Crataegus densiflora	Desf. ex K.Koch	Dendrologie 1: 186. 1869 [Jan 1869]		wfo-0000990403
Crataegus densiflora	Sarg.	–	—	wfo-0001245756
Crataegus denticulata	Hrabětová	; 1977 41, t.2 & t.5,f.4-6 1977	—	wfo-0001014841
Crataegus denudata	Sarg.	Proc. Acad. Nat. Sci. Philadelphia 62: 173. 1910		wfo-0000986757
Crataegus depilis	Sarg.	Man. Trees 419, fig. 338. 1905		wfo-0000986758
Crataegus depressa	Ashe	J. Elisha Mitchell Sci. Soc. 17, pt. 2: 8. 1901		wfo-0000986759
Crataegus depressa	C.Presl	Epimel. Bot. 204. 1851 [Oct 1851]		wfo-0000986434
Crataegus desueta	Sarg.	–	—	wfo-0001245757
Crataegus desueta var. wausaukiensis	Kruschke	Milwaukee Public Mus. Publ. Bot. 3: 60. 1965 [1 Feb 1965]		wfo-0001399522
Crataegus detectabilis	Sarg.	Ontario Nat. Sci. Bull. no. 4: 90. 1908		wfo-0001277475
Crataegus deweyana	Sarg.	Proc. Rochester Acad. Sci. 4: 133. 1903		wfo-0000986761
Crataegus dewingii	Sarg.	Bull. New York State Mus. Nat. Hist. 122: 34. 1908		wfo-0000986762
Crataegus diaphora	Sarg.	Proc. Acad. Nat. Sci. Philadelphia 62: 251. 1910		wfo-0000986763
Crataegus digna	Sarg.	Proc. Acad. Nat. Sci. Philadelphia 57: 628. 1905		wfo-0000986765
Crataegus digyna	Pall. ex Ledeb.	Fl. Ross. (Ledeb.) 2(1,4): 88. 1843 [Sep 1843]		wfo-0000990405
Crataegus dippeliana	Lange	Bot. Tidsskr. 19: 261. 1895		wfo-0000990099
Crataegus dissecta	(Dum.Cours.) DC.	Prodromus systematis naturalis regni vegetabilis ; 1823 630 1825	—	wfo-0001008137
Crataegus dissimilis	Sarg.	Rhodora 5: 149. 1903		wfo-0001001559
Crataegus dissociabilis	Sarg.	Bull. New York State Mus. Nat. Hist. 122: 95. 1908		wfo-0000986766
Crataegus divergens	Sarg.	in N. Y. State Mus. Rep. 1905, App. 6, 66 (1906).		wfo-0000986767
Crataegus diversa	Sarg.	Bull. New York State Mus. Nat. Hist. 122: 109. 1908		wfo-0000986768
Crataegus diversifolia	(Pers.) M.Roem.	Familiarum naturalium regni vegetabilis synopses monographicae 3, Rosiflorae ; 1847 120 1847	—	wfo-0001010166
Crataegus diversifolia	Sarg.	J. Arnold Arbor. 6: 4. 1925		wfo-0000986769
Crataegus diversifolia	Steud.	Nomencl. Bot. [Steudel] 234. 1821		wfo-0000990406
Crataegus divida	Sarg.	–	—	wfo-0001245759
Crataegus divisifolia	Sarg.	Proc. Acad. Nat. Sci. Philadelphia 62: 179. 1910		wfo-0000986771
Crataegus domicensis	Hrabětová	Biologia (Bratislava) 24: 549 (1969)		wfo-0000988419
Crataegus douglasii f. badia	Sarg.	Bot. Gaz. 44: 65. 1907		wfo-0001325584
Crataegus douglasii var. duchesnensis	S.L.Welsh	Great Basin Naturalist 42: 10. 1982		wfo-0001399508
Crataegus downingii	hort.	ex Kew Bull. (1892) Append. i. 24.		wfo-0000990408
Crataegus dshungarica	Zabel ex Lange	Flora USSR ; 1934 450 1939	—	wfo-0001006903
Crataegus dsungarica	Zabel ex Lange	Revisio specierum generis Crataegi imprimis earum, quae in Hortis Daniae coluntur ; 1897 43 1897	—	wfo-0000989661
Crataegus dumetosa	Sarg.	Rep. (Annual) Missouri Bot. Gard. 19: 109. 1908 [2 Jul 1908] [preprint date]		wfo-0000986774
Crataegus dumicola	Sarg.	Rhodora 5: 183. 1903		wfo-0001001595
Crataegus dumosa	Salisb.	Prodr. Stirp. Chap. Allerton 357. 1796 [Nov-Dec 1796]		wfo-0000990409
Crataegus dunmorensis	Sarg.	Proc. Acad. Nat. Sci. Philadelphia 62: 174. 1910		wfo-0000986776
Crataegus duracina	Sarg.	Proc. Acad. Nat. Sci. Philadelphia 62: 186. 1910		wfo-0000986777
Crataegus durifolia	Ashe	J. Elisha Mitchell Sci. Soc. 17: 12. 1900		wfo-0000986778
Crataegus durobrivensis	Sarg.	Trees & Shrubs [Sargent] 1: 3, pl. 2. 1902		wfo-0000985864
Crataegus earlei	Ashe	North Carolina Agric. Exp. Sta. Bull. no. 175: 112. 1900		wfo-0000986779
Crataegus eastmaniana	Sarg.	Bull. New York State Mus. Nat. Hist. 167: 77. 1913		wfo-0000986782
Crataegus eatonia	Sarg.	–	—	wfo-0000986783
Crataegus ebracteata	Ashe	North Carolina Agric. Exp. Sta. Bull. no. 175: 109. 1900		wfo-0000986784
Crataegus eburnea	Ashe	Ann. Carnegie Mus. 1: 395. 1902		wfo-0000986785
Crataegus edsonii	Sarg.	Rhodora 7: 205. 1905		wfo-0001001820
Crataegus edulis	Lodd. ex Moench	Verz. Ausländ. Bäume 30. 1785		wfo-0000990410
Crataegus edurescens	Sarg.	Proc. Acad. Nat. Sci. Philadelphia 62: 180. 1910		wfo-0000986786
Crataegus efferata	Sarg.	Bull. New York State Mus. Nat. Hist. 122: 128. 1908		wfo-0000986787
Crataegus effulgens	Sarg.	Rep. (Annual) Missouri Bot. Gard. 22: 71. 1911		wfo-0000986788
Crataegus eganii	Ashe	J. Elisha Mitchell Sci. Soc. 17: 15. 1900		wfo-0000986789
Crataegus eggertii	Britton	Bull. New York Bot. Gard. 1: 447. 1900		wfo-0000986791
Crataegus elegans	Poir.	Encycl. [J. Lamarck & al.] 4(2): 439. 1798 [1 Nov 1798]		wfo-0001010167
Crataegus elliptica var. minor	Torr. & A.Gray	Fl. N. Amer. (Torr. & A. Gray) 1(3): 469. 1840 [Jun 1840]		wfo-0001399525
Crataegus ellipticifolia	Sarg.	J. Arnold Arbor. 3: 194. 1922 [Dec 1922]		wfo-0000986794
Crataegus ellwangeriana	Sarg.	–		wfo-0001245760
Crataegus emersoniana	Sarg.	Rhodora 7: 181. 1905		wfo-0001001672
Crataegus enderbyensis	J.B.Phipps & O'Kennon	Sida 20(1): 136 (2002).		wfo-0001005522
Crataegus ensifera	Sarg.	Rep. (Annual) Missouri Bot. Gard. 19: 124. 1908		wfo-0000986796
Crataegus erecta	Sarg.	Bot. Gaz. 31: 218. 1901		wfo-0001017439
Crataegus eremitagensis	Raunk.	Biol. Meddel. Kongel. Danske Vidensk. Selsk. 5: 62 (1925)		wfo-0000988427
Crataegus eriocalyx	(Sanio) Cinovskis	Fl. Baltiĭskikh Respublik 2: 110 (1996):.		wfo-0001011125
Crataegus errata	Sarg.	Proc. Acad. Nat. Sci. Philadelphia 62: 245. 1910		wfo-0000986797
Crataegus erubescens	Sarg.	Proc. Acad. Nat. Sci. Philadelphia 62: 178. 1910		wfo-0000986798
Crataegus estonica	Cinovskis	Crat. Balt. : 79 (1971)		wfo-0000989669
Crataegus excelsa	Salisb.	Prodr. Stirp. Chap. Allerton 357. 1796 [Nov-Dec 1796]		wfo-0000990411
Crataegus exclusa	Sarg.	Rhodora 5: 108 (1903)		wfo-0000995270
Crataegus exigua	Ashe	J. Elisha Mitchell Sci. Soc. xix. 20 (1903).		wfo-0000986792
Crataegus exornata	Sarg.	Ontario Nat. Sci. Bull. no. 4: 31. 1908		wfo-0000986799
Crataegus fallacina	Gost.-Jak.	; 1979 9 1978	—	wfo-0001015037
Crataegus fallacina	Klokov	Fl. URSS 6: 576 (1954)		wfo-0000988438
Crataegus fallacina	Klokov	Fl. URSS 6: 576 (1954)		wfo-0001131857
Crataegus fallax	Ashe	J. Elisha Mitchell Sci. Soc. xix. 11 (1903).		wfo-0000986800
Crataegus fallens	Ashe ex Gruber	Proceedings of the Berks County Natural Sciences Club ; 1903 19 1903	—	wfo-0000986801
Crataegus fallens	Sarg.	–	—	wfo-0001006550
Crataegus fallsiana	Sarg.	Bull. New York State Mus. Nat. Hist. 167: 113. 1913		wfo-0000986802
Crataegus farwelli	Sarg.	in Geol. Surv. Mich. Rep. 1906, 519 (1907).		wfo-0000986795
Crataegus fastigiata	hort.	ex Handl. Trees Kew Pt. i. [Polypet.] (1894) 205.		wfo-0000990412
Crataegus feldbergii	R.Doll	Natur Naturschutz Mecklenburg 13: 16 (1975)		wfo-0000989676
Crataegus felix	Sarg.	Proc. Acad. Nat. Sci. Philadelphia 57: 589. 1905		wfo-0000986803
Crataegus fennica	Kalm	Fl. Fenn. [Kalm] 6. 1765 [5 Oct 1765]		wfo-0000994980
Crataegus fernaldii	Sarg.	Rhodora 5(54): 166 (-167). 1903 [6 Jun 1902] (as fernaldi)		wfo-0000994804
Crataegus ferox	Sarg.	Rep. (Annual) Missouri Bot. Gard. 19: 52. 1908		wfo-0000986806
Crataegus ferox	hort.	–	—	wfo-0001005998
Crataegus fertilis	Sarg.	Rhodora 5: 182. 1903		wfo-0001001588
Crataegus festiva	Sarg.	Rhodora 5: 54. 1903		wfo-0001001407
Crataegus filipes	Eggl.	An illustrated flora of the Northern United States ; 1913 313, f.2383 1913	—	wfo-0000990101
Crataegus finitima	Sarg.	Bull. New York State Mus. Nat. Hist. 122: 78. 1908		wfo-0000986807
Crataegus firma	Sarg.	Proc. Acad. Nat. Sci. Philadelphia 57: 612. 1905		wfo-0000986808
Crataegus fissa	Bosc ex DC.	Prodr. [A. P. de Candolle] 2: 628. 1825 [mid Nov 1825]		wfo-0000990129
Crataegus flabellata	(Bosc ex Spach) Rydb.	Mem. New York Bot. Gard. 1: 228. 1900		wfo-0000986810
Crataegus flabellata	Bosc ex M.Roem.	Fam. Nat. Syn. Monogr. 3: 136. 1847 [Apr 1847]		wfo-0001004771
Crataegus flabellata	Heldr. ex Regel	Trudy Imp. S.-Peterburgsk. Bot. Sada 1(1): 114. 1871		wfo-0000988150
Crataegus flagrans	Sarg.	Bull. New York State Mus. Nat. Hist. 105, Bot. 9: 71. 1906		wfo-0000986811
Crataegus flammata	Sarg.	Proc. Acad. Nat. Sci. Philadelphia 62: 211. 1910		wfo-0000986812
Crataegus flammea	Sarg.	Rep. Geol. Surv. Michigan 1906: 563. 1907		wfo-0000986813
Crataegus flava	Aiton	Hort. Kew. [W. Aiton] 2: 169. 1789	—	wfo-0001131665
Crataegus flava	Hook.	Flora boreali-americana ; 1829 202 1832	—	wfo-0000990416
Crataegus flava	Lindl.	Edwards's botanical register; or, ornamental flower-garden and shrubbery ; 1829 t.1939 1837	—	wfo-0000989407
Crataegus flava	Sarg.	The silva of North America ; 1890 113 1892	—	wfo-0001017798
Crataegus flava	hort.	–	—	wfo-0001005988
Crataegus flava var. elliptica	Sarg.	Silva (Sargent) 4: 114, pl. 190. 1892		wfo-0001399526
Crataegus flavescens	Bosc	Nouv. Cours Compl. Agric. [Rozier], ed. 2. 2: 222. 1821		wfo-0000990417
Crataegus flavocarnis	Ashe	J. Elisha Mitchell Sci. Soc. 17: 9. 1900		wfo-0001003135
Crataegus flexilis	Gand.	Bull. Soc. Bot. France 18: 445 (1871 publ. 1872)		wfo-0000988443
Crataegus flexispina	Borkh.	Theoretisches-praktisches Handbuch der Forstbotanik und Forsttechnologie ; 1800 1837 1803	—	wfo-0001008035
Crataegus flexispina	Sarg.	Gard. & Forest 2: 424. 1889		wfo-0000986815
Crataegus flexuosa	Schwein.	in Long, Exped. Winnep. ii. 387.		wfo-0000990418
Crataegus florea	Sarg.	Rhodora 5: 145. 1903		wfo-0001001526
Crataegus floribunda	K.Koch	Dendrologie 1: 149. 1869 [Jan 1869]		wfo-0000990419
Crataegus florida	Loudon	Catalogue of plants ; 1830 40 1830		wfo-0000986816
Crataegus floridana f. flava	Murrill	Castanea 7: 22. 1942		wfo-0001325585
Crataegus floridula	Sarg.	Bull. New York State Mus. Nat. Hist. 122: 126. 1908		wfo-0000986818
Crataegus foliata	Sarg.	Bull. New York State Mus. Nat. Hist. 122: 53. 1908		wfo-0000986819
Crataegus fominii	Krysht.	; 1938 99, t.3,f.5 1938	—	wfo-0000990130
Crataegus formosa	Sarg.	–	—	wfo-0001245761
Crataegus fretzii	Sarg.	Proc. Acad. Nat. Sci. Philadelphia 57: 604. 1905		wfo-0000986805
Crataegus fructuosa	Sarg.	Proc. Acad. Nat. Sci. Philadelphia 62: 232. 1910		wfo-0000986820
Crataegus fructurubro	hort.	Arboretum segrezianum. Icones selectae arborum et fruticum ; 1880 21 1880	—	wfo-0001005954
Crataegus frutescens	Sarg.	Bull. New York State Mus. Nat. Hist. 122: 113. 1908		wfo-0000986821
Crataegus fucosa	Sarg.	Rhodora 5: 137. 1903		wfo-0001001477
Crataegus fulgens	Sarg.	Rhodora 7: 182. 1905		wfo-0001001683
Crataegus fulgida	Sarg.	Ontario Nat. Sci. Bull. no. 4: 84. 1908		wfo-0000986823
Crataegus fulleriana var. chippewaensis	(Sarg.) Kruschke	Publ. Bot. Milwaukee Public Mus. 3: 186 (1965)		wfo-0001011458
Crataegus fulleriana var. gigantea	Kruschke	Publ. Bot. Milwaukee Public Mus. 3: 106 (1965)		wfo-0001011468
Crataegus fulleriana var. miranda	(Sarg.) Kruschke	Publ. Bot. Milwaukee Public Mus. 3: 186 (1965)		wfo-0001011477
Crataegus fulva	Sarg.	Proc. Acad. Nat. Sci. Philadelphia 57: 649. 1905		wfo-0000986825
Crataegus furuhjelmii	Heer	; 1877 10, t.4,f.5 1877	—	wfo-0000990131
Crataegus fusca	Sarg.	Rhodora 7: 193. 1905		wfo-0001001715
Crataegus gailensis	E.Reid	; 1923 323, t.10,f.13-14 1923	—	wfo-0001014592
Crataegus gaultii	Sarg.	Bot. Gaz. 35: 397. 1903		wfo-0001017459
Crataegus geneseensis	Sarg.	Bull. New York State Mus. Nat. Hist. 122: 27. 1908		wfo-0000986828
Crataegus genialis	Sarg.	Rhodora 5: 148. 1903		wfo-0001001552
Crataegus germanica	K.Koch	Verh. Vereins Beford. Gartenbaues Konigl. Preuss. Staaten 225. 1853		wfo-0000990420
Crataegus gharanica	Paulsen ex Pojark.	Fl. URSS 9: 449, in syn. 1939		wfo-0000990422
Crataegus gilbertiana	Sarg.	Bull. New York State Mus. Nat. Hist. 167: 101 (1913)		wfo-0000986830
Crataegus glabra	G.Lodd.	The Botanical cabinet; consisting of coloured delineations of plants from all countries, with a short account of each [etc.] ; 1818 t.248 1818	—	wfo-0000991050
Crataegus glabra	hort.	–	—	wfo-0001005997
Crataegus glabrata	Sarg.	Ontario Nat. Sci. Bull. no. 4: 85. 1908		wfo-0000986831
Crataegus glabrifolia	Sarg.	Rep. (Annual) Missouri Bot. Gard. 22: 74. 1911		wfo-0000986832
Crataegus glandulosa	Georgi	Beschr. Russ. Reich. iii. Nachtr. 273.	—	wfo-0000990425
Crataegus glandulosa	Moench	Verz. Ausländ. Bäume 31. 1785		wfo-0000990110
Crataegus glandulosa	Walter	–	—	wfo-0001010162
Crataegus glandulosa	Willd.	Sp. Pl., ed. 4 [Willdenow] 2(2): 1002, partim. 1799 [Dec 1799]		wfo-0000987431
Crataegus glandulosa var. minor	Farw.	Amer. Midl. Naturalist 12: 66. 1930		wfo-0001399530
Crataegus glareosa	Ashe	–	—	wfo-0001245763
Crataegus glauca	R.Doll	Natur Naturschutz Mecklenburg 13: 18 (1975)		wfo-0000989683
Crataegus glauca	W.Young	Cat. Arbres, Arbustes & Pl. Herb. Am. 7 (1783), nomen.		wfo-0000990426
Crataegus globirimosa	Murrill	Castanea 7: 22. 1942		wfo-0000986835
Crataegus glomerata	Booth	Linnaea 24(2): 185. 1851 [Jul 1851]		wfo-0000987122
Crataegus glutinosa	Michx. ex Koehne	Deutsche Dendrologie ; 1893 231 1893	—	wfo-0001008040
Crataegus gothica	Lindm.	Boyaryschniki pribaltiki- Crataegi baltici ; 1971 38 1971	—	wfo-0000990112
Crataegus gracilior	J.B.Phipps	Sida, Bot. Misc. 15: 26 (1997), nom. nov.:.		wfo-0000986837
Crataegus gracilipes	Sarg.	Bull. New York State Mus. Nat. Hist. 122: 119. 1908		wfo-0000986838
Crataegus gracilis	Cinovskis	Crat. Balt. : 118 (1971)		wfo-0000989693
Crataegus gracilis	Sarg.	Bull. New York State Mus. Nat. Hist. 122: 37. 1908		wfo-0000986839
Crataegus grandiflora	K.Koch	C. Koch & Fint. Wochenschr. (1859) 374.		wfo-0000990429
Crataegus grandiflora	hort.Belg. ex Hornem.	Enum. Pl. Hort. Hafn. 13.		wfo-0000990428
Crataegus grandiflorus	K.Koch	; 1853 226 1853	—	wfo-0000989019
Crataegus grata	Salisb.	Prodr. Stirp. Chap. Allerton 357. 1796 [Nov-Dec 1796]		wfo-0000990430
Crataegus gratiosa	Sarg.	Proc. Acad. Nat. Sci. Philadelphia 62: 243. 1910		wfo-0000986841
Crataegus gravesii	Sarg.	Rhodora 5: 159. 1903		wfo-0001001573
Crataegus gregorianii	Gabrieljan & Sargsyan	Novosti Sist. Vyssh. Rast. 51: 25. 2020		wfo-1000021816
Crataegus grignoniensis	Mouill.	; 1890 248 1890	—	wfo-0000990431
Crataegus grossa	Sarg.	Proc. Acad. Nat. Sci. Philadelphia 62: 223. 1910		wfo-0000986842
Crataegus grossidentata	Sharifnia & K.I.Chr.	Nordic J. Bot. 29(5): 534 (-537; fig. 1, map). 2011 [15 Oct 2011]		wfo-0001015252
Crataegus grossiserrata	Ashe	North Carolina Agric. Exp. Sta. Bull. no. 175: 112. 1900		wfo-0000986843
Crataegus grossulariifolia	Loudon	Catalogue of plants ; 1818 27 1818	—	wfo-0000986844
Crataegus grossulariifolia	hort. ex Dippel	Handbuch der Laubholzkunde ; 1889 424 1893	—	wfo-0001008034
Crataegus gruberi	Ashe	Ann. Carnegie Mus. 1: 388. 1902		wfo-0000986845
Crataegus habereri	Sarg.	Bull. New York State Mus. Nat. Hist. 116, Bot. 10: 21. 1907		wfo-0001220318
Crataegus habilis	Ashe	Bot. Gaz. 35: 435. 1903		wfo-0001017802
Crataegus haemocarpa	Ashe	–	—	wfo-0001245764
Crataegus hamata	Sarg.	Rep. (Annual) Missouri Bot. Gard. 19: 46. 1908		wfo-0000986847
Crataegus handyae	Sarg.	Rhodora 7: 177. 1905		wfo-0001001651
Crataegus hargeri	Sarg.	Rhodora 5: 66. 1903		wfo-0001001443
Crataegus hatamii	Hamzehee, K.I.Chr. & Attar	Nordic J. Bot. 32(1): 29. 2014 [15 Jan 2014] [epublished]		wfo-0001356423
Crataegus heidelbergensis	Sarg.	Proc. Acad. Nat. Sci. Philadelphia 62: 215. 1910		wfo-0000986849
Crataegus helderbergensis	Sarg.	in N. Y. State Mus. Rep. 1905, App. 6, 49 (1906).		wfo-0000986850
Crataegus helenae	Sarg.	Rhodora 7: 162. 1905		wfo-0001001609
Crataegus helvetica	W.Koch	Verhandlungen der Schweizerischen Naturforschenden Gesellschaft ; 1825 187 1927	—	wfo-0000990133
Crataegus heterophylla	C.A.Mey. ex Hohen.	Enumeratio plantarum quas in itinere per provinciam Talysch ; 1838 130 1838	—	wfo-0001006905
Crataegus heterophylla	Lindl.	Edwards's botanical register; or, ornamental flower-garden and shrubbery ; 1829 t.1847 1836	—	wfo-0001005059
Crataegus heterophylla	Steven	Taur. 147.		wfo-0000990442
Crataegus hirtella	Sarg.	Rep. (Annual) Missouri Bot. Gard. 19: 62. 1908		wfo-0000986852
Crataegus hirtiflora	Sarg.	Rep. (Annual) Missouri Bot. Gard. xix. 82 (1908).		wfo-0001245766
Crataegus hispidula	Sarg.	Rep. (Annual) Missouri Bot. Gard. 19: 116. 1908		wfo-0000994809
Crataegus holmesiana var. chippewaensis	(Sarg.) E.J.Palmer	Brittonia 5: 488 (1946)		wfo-0001011479
Crataegus holmesiana var. magniflora	(Sarg.) E.J.Palmer	Brittonia 5: 488 (1946)		wfo-0001011485
Crataegus holmesiana var. tardipes	Sarg.	J. Arnold Arbor. 1: 254. 1920		wfo-0001399531
Crataegus honeoyensis	Sarg.	Bull. New York State Mus. Nat. Hist. 122: 129. 1908		wfo-0000986853
Crataegus honesta	Sarg.	Rep. Geol. Surv. Michigan 1906: 558. 1907		wfo-0000986854
Crataegus horrida	Medik.	Gesch. 84.		wfo-0000987429
Crataegus horrida f. rubescens	(Sarg.) Cinovskis	Boyaryshniki Pribaltiki 255. 1971		wfo-0001326211
Crataegus horrida var. aboriginum	(Sarg.) Cinovskis	Boyaryshniki Pribaltiki 257. 1971		wfo-0001401182
Crataegus horrida var. chrysocarpa	(Ashe) Cinovskis	Boyaryshniki Pribaltiki 255. 1971		wfo-0001401183
Crataegus horrida var. longiacuminata	(Kruschke) Cinovskis	Boyaryshniki Pribaltiki 259. 1971		wfo-0001401184
Crataegus horrida var. piperi	(Britt.) Cinovskis	Boyaryshniki Pribaltiki 257. 1971		wfo-0001401185
Crataegus horridula	Sarg.	in Geol. Surv. Mich. Rep. 526 (1907).		wfo-0000986855
Crataegus hortorum	Gand.	Bull. Soc. Bot. France 18: 446 (1871 publ. 1872)		wfo-0000988499
Crataegus hostii	hort.	–	—	wfo-0001006006
Crataegus hostii	hort. ex Carrière	Rev. Hort. [Paris]. (1873) 470.	—	wfo-0000990443
Crataegus howeana	Sarg.	Bull. New York State Mus. Nat. Hist. 105, Bot. 9: 52. 1906		wfo-0000986856
Crataegus howellii	Heiser ex Lunell	Amer. Midl. Naturalist 5: 238. 1919		wfo-0000986858
Crataegus humilis	Lam.	Fl. Franç. (Lamarck) 3: 485. 1779 [1778 publ. after 21 Mar 1779]		wfo-0000990444
Crataegus huntiana	Sarg.	Bull. New York State Mus. Nat. Hist. 167: 105. 1913		wfo-0000986859
Crataegus hyrcana	Bornm.	Beih. Bot. Centralbl., Abt. 2. 33(2): 291, in obs. 1915		wfo-0000990448
Crataegus hystricina	Ashe	Bot. Gaz. 35: 433. 1903		wfo-0001017799
Crataegus ignava	Sarg.	Proc. Acad. Nat. Sci. Philadelphia 62: 228. 1910		wfo-0000986860
Crataegus ignea	Sarg.	Bull. New York State Mus. Nat. Hist. 122: 96. 1908		wfo-0000986861
Crataegus illecebrosa	Sarg.	J. Arnold Arbor. 4: 103 (1923)		wfo-0001131667
Crataegus illecebrosa	Sarg.	–	—	wfo-0001245768
Crataegus illinoiensis	Ashe	J. Elisha Mitchell Sci. Soc. 16: 76. 1900		wfo-0000986862
Crataegus immanis	Ashe	–	—	wfo-0001245769
Crataegus immitis	Ashe	J. Elisha Mitchell Sci. Soc. xix. 28 (1903).		wfo-0000986863
Crataegus impervia	Sarg.	Proc. Acad. Nat. Sci. Philadelphia 62: 197. 1910		wfo-0000986864
Crataegus implicata	Sarg.	Bull. New York State Mus. Nat. Hist. 122: 49. 1908		wfo-0000986865
Crataegus improvisa	Sarg.	–	—	wfo-0001245770
Crataegus inaudita	Sarg.	Ontario Nat. Sci. Bull. 4: 64. 1908		wfo-0000986866
Crataegus incana	Beadle	; 1902 113 1902	—	wfo-0000983648
Crataegus incerta	Sarg.	Rep. Geol. Surv. Michigan 1906: 523. 1907		wfo-0001012538
Crataegus incisa	Lange ex Dippel	Handbuch der Laubholzkunde ; 1889 447 1893	—	wfo-0001008060
Crataegus incisa	hort. ex Lavallée	Énum. Arbres 94, nomen. 1877	—	wfo-0000990449
Crataegus incompta	Sarg.	Proc. Acad. Nat. Sci. Philadelphia 62: 183. 1910		wfo-0000986869
Crataegus indentata	Lodd.	Catalogue of plants ; 1830 41 1830	—	wfo-0000990318
Crataegus indigens	Ashe	J. Elisha Mitchell Sci. Soc. xlx. 13 (1903).		wfo-0000986870
Crataegus inducta	Ashe	J. Elisha Mitchell Sci. Soc. xlx. 24 (1903).		wfo-0000986871
Crataegus inermis	L.	Fl. Lapp. 199.		wfo-0000990450
Crataegus inermis	Sennen	Exsiccata "Plantes d'Espagne" ; 1906 no.5306 1925	—	wfo-0001005078
Crataegus inexpectans	K.I.Chr.	Nordic J. Bot. 26(5-6): 353 (355-356; fig. 4). 2009 [2008 publ. 26 Jan 2009]		wfo-0001356222
Crataegus infensa	Sarg.	Proc. Acad. Nat. Sci. Philadelphia 62: 201. 1910		wfo-0000986873
Crataegus infera	Sarg.	Proc. Acad. Nat. Sci. Philadelphia 57: 651. 1905		wfo-0000986874
Crataegus infesta	Sarg.	Rep. (Annual) Missouri Bot. Gard. 19: 45. 1908		wfo-0000986875
Crataegus ingrata	Ashe	J. Elisha Mitchell Sci. Soc. 20: 54. 1904		wfo-0000986876
Crataegus inopinata	Sarg.	Bull. New York State Mus. Nat. Hist. 122: 108. 1908		wfo-0000986877
Crataegus insignata	Sarg.	Bull. New York State Mus. Nat. Hist. 122: 101. 1908		wfo-0000986878
Crataegus insolita	Sarg.	Proc. Acad. Nat. Sci. Philadelphia 57: 622. 1905		wfo-0000986880
Crataegus insperata	Sarg.	Rep. (Annual) Missouri Bot. Gard. 19: 123. 1908		wfo-0000986881
Crataegus insueta	Sarg.	Proc. Acad. Nat. Sci. Philadelphia 57: 599. 1905		wfo-0000986882
Crataegus insularis	Cinovskis	Crat. Balt. : 120 (1971)		wfo-0000988532
Crataegus insularis	Cinovskis	Crat. Balt. : 120 (1971)		wfo-0001131859
Crataegus integrifolia	(Roxb.) G.Klotz	Wiss. Z. Martin-Luther-Univ. Halle-Wittenberg, Math.-Naturwiss. Reihe 12(10): 779 1963	—	wfo-0001226745
Crataegus integrifolius	Roxb.	Flora indica, 1832 edition ; 1832 509 1832	—	wfo-0001014962
Crataegus integriloba	Sarg.	–	—	wfo-0001245772
Crataegus intermedia	Donn	Hortus cantabrigiensis ; 1811 137 1811	—	wfo-0001008861
Crataegus intermedia	Pers.	Synopsis plantarum Synopsis plantarum; 1805 1807	—	wfo-0000990117
Crataegus intermedia	hort.	–	—	wfo-0001005983
Crataegus intermixta	Sarg.	J. Arnold Arbor. 3: 5. 1922		wfo-0000986883
Crataegus intricata f. fortunata	(Sarg.) Kruschke	Milwaukee Public Mus. Publ. Bot. 3: 168. 1965 [1 Feb 1965]		wfo-0001325173
Crataegus intricata var. fortunata	(Sarg.) Lance	Phytoneuron 2011-3: 3. [2 Feb 2011]		wfo-0001400272
Crataegus intricata var. horseyi	(E.J.Palmer) Lance	Phytoneuron 2011-3: 3. [2 Feb 2011]		wfo-0001400273
Crataegus inusitula	Sarg.	Bull. New York State Mus. Nat. Hist. 122: 55. 1908		wfo-0000986885
Crataegus irrasa var. divergens	Peck	Bull. New York State Mus. Nat. Hist. 75, Bot. 7: 51. 1904		wfo-0001277503
Crataegus irvingii	Sarg. ex Weed	Our Trees 194, tab. 1908		wfo-0000986886
Crataegus jaquinii	A.Kern.	Monatsschrift des Vereines zur Bef”rderung des Gartenbaues in den K”niglich Preussischen Staaten f?r G„rtnerei und Pflanzenkunde ; 1873 175 1875	—	wfo-0001006858
Crataegus jasperensis	Sarg.	Rep. (Annual) Missouri Bot. Gard. 19: 61. 1908		wfo-0000986888
Crataegus jejuna	Sarg.	Proc. Acad. Nat. Sci. Philadelphia 57: 593. 1905		wfo-0000986889
Crataegus jenningsii	Sarg.	Proc. Acad. Nat. Sci. Philadelphia 62: 241. 1910		wfo-0000986890
Crataegus jonkeri	Burgh	; 1978 179, Pl.1,f.19,20 1978	—	wfo-0001015036
Crataegus kaussmanniana	R.Doll	Arch. Freunde Naturgesch. Mecklenburg 19: 13 (1979)		wfo-0000988580
Crataegus kellermanii	Sarg.	–	—	wfo-0001245773
Crataegus khatamsazae	Hamzehee, K.I.Chr. & Attar	Nordic J. Bot. 32(1): 27. 2014 [15 Jan 2014] [epublished]		wfo-0001356422
Crataegus kingstonensis	Sarg.	J. Arnold Arbor. 3: 205. 1922 [Dec 1922]		wfo-0000986891
Crataegus kingstonensis	Sarg.	–	—	wfo-0001245775
Crataegus kinzerae	Sarg.	Proc. Acad. Nat. Sci. Philadelphia 62: 234. 1910		wfo-0000986892
Crataegus kornerupii	Heer	Flora fossilis arctica ; 1868 136, t.67,f.1 1883	—	wfo-0000990134
Crataegus korolkowii	Regel ex Zabel	Handb. Laubholzben. [Beissner & al.] 178. 1903 [Jun-Jul 1903]		wfo-0000990118
Crataegus kupfferi	Cinovskis	Crat. Balt. : 89 (1971)		wfo-0000989727
Crataegus kyrtostyla	K.I.Chr.	; 1985 374 1985	—	wfo-0001010174
Crataegus laciniata	Borkh.	Theor. Prakt. Handb. Forstbot. 2: 1355. 1803	—	wfo-0000990452
Crataegus laciniata	Kar. & Kir.	; 1842 351 1842	—	wfo-0000990306
Crataegus laciniata	Montrouz.	–	—	wfo-0000989702
Crataegus laciniata	Willk.	Prodromus florae hispanicae ; 1861 198 1874	—	wfo-0001007754
Crataegus laciniata subsp. pojarkovae	(Kossych) Franco	; 1968 37 1968		wfo-0000997674
Crataegus laetans	Sarg.	Proc. Acad. Nat. Sci. Philadelphia 62: 205. 1910		wfo-0000986904
Crataegus laetifica	Sarg.	–	—	wfo-0001245777
Crataegus laetula	Sarg.	Proc. Acad. Nat. Sci. Philadelphia 62: 233. 1910		wfo-0000986905
Crataegus laevigata f. ellipticifolia	(Cinovskis) Cinovskis	Fl. Baltiĭskikh Respublik 2: 110 (1996):.		wfo-0001326764
Crataegus laevigata f. rosea	(Willd.) Geerinck	Taxonomaniac 1: 10 (2001):.		wfo-0001323507
Crataegus laevigata subsp. nemorensis	(Hrabětová) Dostál	Folia Mus. Rerum Nat. Bohemiae Occid., Bot. 21: 8 (1984)		wfo-0000997737
Crataegus laevigata var. palmstruchii	(Lindm.) P.D.Sell	Fl. Gr. Brit. Ireland 2: 523. 2014		wfo-0001399036
Crataegus lambertiana	K.Koch	in Verh. Ver. Bef. Gartenb. II. i. (1853) 229.		wfo-0000990119
Crataegus lambertiana	hort.	ex Handl. Trees Kew Pt. i. [Polypet.] (1894) 201.		wfo-0000990454
Crataegus lampocarpa	Lindm.	Svensk fanerogamflora ; 1918 307 1918	—	wfo-0000990135
Crataegus lamprophylla	Gand.	Scrinia florae selectae ; 1882 23, no.66 1882	—	wfo-0001005080
Crataegus lancifolia	Wender.	Index Seminum [Marburg] 1825: 6. [1825]		wfo-0000985677
Crataegus langei	Cinovskis	Boyaryshniki Pribaltiki 202, without lat. descr. or type. 1971		wfo-0000990120
Crataegus lanigera	Sarg.	Rep. (Annual) Missouri Bot. Gard. 19: 107. 1908		wfo-0000986906
Crataegus lapeyrousii	Gand.	Herborisations dans les Pyr‚n‚es ; 1884 40 1884	—	wfo-0001011736
Crataegus lasiantha	Sarg.	Rep. (Annual) Missouri Bot. Gard. 19: 105. 1908		wfo-0000986908
Crataegus lassa var. colonica	(Beadle) Lance	Phytoneuron 2011-3: 4. [2 Feb 2011]		wfo-0001040323
Crataegus lassa var. integra	(Nash) Lance	Phytoneuron 2011-3: 5. [2 Feb 2011]		wfo-0001040324
Crataegus lassa var. lanata	(Beadle) Lance	Phytoneuron 2011-3: 5. [2 Feb 2011]		wfo-0001400275
Crataegus lassa var. recurva	(Beadle) Lance	Phytoneuron 2011-3: 5. [2 Feb 2011]		wfo-0001400276
Crataegus lata	Sarg.	Proc. Acad. Nat. Sci. Philadelphia 57: 610. 1905		wfo-0000986909
Crataegus latebrosa	Sarg.	Rep. (Annual) Missouri Bot. Gard. 1911, xxii. 73.		wfo-0001220315
Crataegus latiflora	Sarg.	Bull. New York State Mus. Nat. Hist. 167: 83. 1913		wfo-0000986910
Crataegus latifolia	DC. ex Koehne	Deutsche Dendrologie ; 1893 235 1893	—	wfo-0001008053
Crataegus latifolia	Spach	Histoire naturelle des v‚g‚taux ; 1834 105 1834	—	wfo-0001009380
Crataegus latifrons	Sarg.	Proc. Acad. Nat. Sci. Philadelphia 62: 181. 1910		wfo-0000986912
Crataegus latisepala	Ashe	North Carolina Agric. Exp. Sta. Bull. no. 175: 109. 1900		wfo-0000995375
Crataegus latvica	Cinovskis	Crat. Balt. : 108 (1971)		wfo-0000989749
Crataegus lauta	Sarg.	Rhodora 7: 206. 1905		wfo-0001001830
Crataegus lavallei	hort.Paris.	–	—	wfo-0000990456
Crataegus lavallei var. carrierei	(Vauv. ex Carrière) Cinovskis	Crat. Balt. : 219 (1971)		wfo-0001387622
Crataegus lawrencensis	Sarg.	J. Arnold Arbor. 3: 3. 1922		wfo-0000986913
Crataegus lawrencensis	Sarg.	J. Arnold Arbor. 3: 3. 1922		wfo-0001220297
Crataegus layii	hort. ex Lavallée	Énum. Arbres 96, nomen. 1877		wfo-0000990457
Crataegus leeana	Bean	Trees and shrubs hardy in the British Isles ; 1914 428 1914	—	wfo-0000990313
Crataegus leimonia	Sarg.	Proc. Acad. Nat. Sci. Philadelphia 62: 194. 1910		wfo-0000986953
Crataegus leioclada	Sarg.	Rep. (Annual) Missouri Bot. Gard. 19: 113. 1908		wfo-0000986946
Crataegus leiophylla var. maineana	Eggl.	Rhodora 10: 81. 1908		wfo-0001399534
Crataegus lenneana	Warsz.	Allg. Gartenzeitung (Otto & Dietrich) 20: 292. 1852		wfo-0000990458
Crataegus lennoniana	Sarg.	Proc. Rochester Acad. Sci. 4: 98. 1903		wfo-0000986954
Crataegus lenta	Ashe	J. Elisha Mitchell Sci. Soc. 18, pt. 1: 18. 1902		wfo-0000986956
Crataegus lentula	Ashe	J. Elisha Mitchell Sci. Soc. xix. 25 (1903).		wfo-0000986957
Crataegus lepida	Hrabetová	Preslia 45: 108 (1973)		wfo-0000988663
Crataegus leptalea	Sarg.	Proc. Acad. Nat. Sci. Philadelphia 62: 231. 1910		wfo-0000986958
Crataegus leptophylla	Sarg.	Rep. (Annual) Missouri Bot. Gard. 19: 69. 1908		wfo-0000994992
Crataegus leptopoda	Sarg.	Bull. New York State Mus. Nat. Hist. 122: 118. 1908		wfo-0000986959
Crataegus lesquereuxii	Cockerell	; 1906 311 1906	—	wfo-0001013343
Crataegus letchworthiana	Sarg.	Bull. New York State Mus. Nat. Hist. 122: 68. 1908		wfo-0001012032
Crataegus limatala	Sarg.	in Ontario Nat. Sci. Bull. 1908, No. 4, 16.		wfo-0000986960
Crataegus limnophiloides	Murrill	Castanea 7: 22. 1942		wfo-0000986961
Crataegus limosa	Sarg.	Bull. New York State Mus. Nat. Hist. 122: 67. 1908		wfo-0000986962
Crataegus lindenii	Stapf	Bull. Misc. Inform. Kew 1914(9): 326. [4 Dec 1914]		wfo-0000986963
Crataegus lindmanii	Cinovskis	Daildarznieciba. Augu introdukcija un zala celtnieciba Latvijas P S R ; 1950 73 1968	—	wfo-0000990122
Crataegus linearifolia	hort.	ex Handl. Trees Kew Pt. i. [Polypet.] (1894) 197.		wfo-0000990459
Crataegus littoralis	Sarg.	–	—	wfo-0001245780
Crataegus livingstoniana	Sarg.	Bull. New York State Mus. Nat. Hist. 122: 116. 1908		wfo-0000986965
Crataegus lobata	(Poir.) Bosc	Nouv. Cours Compl. Agric. [Rozier], ed. 2. 2: 223. 1821	—	wfo-0000990109
Crataegus lobulata	Sarg.	Rhodora 3: 22 (1901)		wfo-0000995292
Crataegus locuples	Sarg.	–	—	wfo-0001245781
Crataegus longifolia	DC.	Prodr. [A. P. de Candolle] 2: 636, in syn. 1825 [mid Nov 1825]		wfo-0000990460
Crataegus longipedunculata	Sarg.	Ontario Nat. Sci. Bull. no. 4: 26. 1908		wfo-0000986968
Crataegus longipetiolata	Sarg.	Proc. Acad. Nat. Sci. Philadelphia 57: 621. 1905 [Sep 1905]		wfo-0000986969
Crataegus lucida	Wangenh.	Beytrag zur teutschen holzgerechten Forstwissenschaft ; 1787 53, t.17,f.42 1787	—	wfo-0001011145
Crataegus lucorum var. insolens	Eggl.	Rhodora 10: 79. 1908		wfo-0001399535
Crataegus ludgi	Carrière	Rev. Hort. [Paris]. (1876) 199.		wfo-0000990461
Crataegus ludoviciensis	Sarg.	Trees & Shrubs [Sargent] 2: 5, tab. 103. 1907		wfo-0000986971
Crataegus luminosa	Sarg.	Bull. New York State Mus. Nat. Hist. 122: 63. 1908		wfo-0000986973
Crataegus lutea	Poir.	Encyc. [J. Lamarck & al.] Suppl. 4. 72. 1816 [29 Jun 1816]		wfo-0001007736
Crataegus lutensis	Sarg.	Rep. (Annual) Missouri Bot. Gard. 1911, xxii. 75.		wfo-0000995471
Crataegus luteola	Sarg.	Proc. Acad. Nat. Sci. Philadelphia 62: 240. 1910		wfo-0000986974
Crataegus luzinii	R.Doll	Natur Naturschutz Mecklenburg 13: 19 (1975)		wfo-0000989755
Crataegus lyi	H.Lév.	Fl. Kouy-Tchéou : 316 (1915)		wfo-0001131948
Crataegus macera	Sarg.	Bull. New York State Mus. Nat. Hist. 122: 117. 1908		wfo-0000986976
Crataegus mackensenii	Sarg.	Trees & Shrubs [Sargent] 2: 242. 1913		wfo-0000995600
Crataegus macnabiana	hort.	ex Handl. Trees Kew Pt. i. [Polypet.] (1894) 199.		wfo-0000990469
Crataegus macra	Beadle	Biltmore Bot. Stud. 1(2): 134. 1902 [30 Apr 1902]		wfo-0000983596
Crataegus macracantha	Lodd.	Catalogue of plants ; 1836 46 1836	—	wfo-0001011323
Crataegus macracantha var. minor	Loudon	–		wfo-0001399536
Crataegus macracantha var. rhombifolia	(Sarg.) Eggl.	Rhodora 10(113): 82. 1908 [4 Jun 1908]		wfo-0001399537
Crataegus macrocalyx	Sarg.	Bull. New York State Mus. Nat. Hist. 122: 89. 1908		wfo-0000986980
Crataegus macrocarpa subsp. calciphila	(Hrabětová) Hrabětová	; 1967 18 1967	—	wfo-0000999388
Crataegus macrophylla	Sarg.	Rep. (Annual) Missouri Bot. Gard. 19: 104. 1908		wfo-0000986941
Crataegus macropoda	Sarg.	Rep. (Annual) Missouri Bot. Gard. 19: 80. 1908		wfo-0000986939
Crataegus magnifolia	Sarg.	Trees & Shrubs [Sargent] 2: 69, pl. 132. 1908		wfo-0000986981
Crataegus maineana	Sarg.	Proc. Rochester Acad. Sci. 4: 106. 1903		wfo-0001001036
Crataegus mandshurica	Hort.Buek ex Maxim.	Bull. Soc. Imp. Naturalistes Moscou 54(1): 20. 1879		wfo-0000990470
Crataegus mansfieldensis	Sarg.	–	—	wfo-0001245783
Crataegus marcida	Ashe	J. Elisha Mitchell Sci. Soc. 20: 53. 1904		wfo-0000986982
Crataegus margarettae	Eggl.	North American trees ; 1908 463 1908	—	wfo-0000987435
Crataegus margarettae f. xanthocarpa	Sarg.	J. Arnold Arbor. 3: 200. 1922 [Dec 1922]		wfo-0001325586
Crataegus maribella	Sarg.	Bull. New York State Mus. Nat. Hist. 167: 109. 1913		wfo-0000986983
Crataegus mariettensis	Sarg.	J. Arnold Arbor. 3: 194. 1922 [Dec 1922]		wfo-0000986894
Crataegus maritima	Cinovskis	Crat. Balt. : 123 (1971)		wfo-0000989763
Crataegus maroccana	Lindl.	Edwards's Bot. Reg. 22: t. 1855. 1836		wfo-0000990136
Crataegus masovica	Sanio	; 1891 87 1891	—	wfo-0000988708
Crataegus matura	Sarg.	Rhodora 3(26): 24. 1901 [1 Feb 1901] ; addit. publ.: 5: 144. 1903.		wfo-0000995174
Crataegus mcgeeae	Ashe	J. Elisha Mitchell Sci. Soc. 18, pt. 1: 20. 1902		wfo-0000986984
Crataegus mechowa	R.Doll	Natur Naturschutz Mecklenburg 13: 21 (1975)		wfo-0000989771
Crataegus media	Sarg.	Rhodora 5: 150. 1903		wfo-0001011497
Crataegus media f. aurea	(Loudon) P.D.Sell	Fl. Gr. Brit. Ireland 2: 523. 2014		wfo-0001325877
Crataegus media f. laciniata	(Wallr.) P.D.Sell	Fl. Gr. Brit. Ireland 2: 523. 2014		wfo-0001325538
Crataegus medioxima	Sarg.	Proc. Acad. Nat. Sci. Philadelphia 62: 190. 1910		wfo-0000986985
Crataegus medita	Lindm.	Boyaryschniki pribaltiki- Crataegi baltici ; 1971 38 1971	—	wfo-0000990113
Crataegus megapulchra	Murrill	Castanea 7: 23. 1942		wfo-0000986987
Crataegus meiophylla	Sarg.	J. Arnold Arbor. 3: 198. 1922 [Dec 1922]		wfo-0000995239
Crataegus melanocarpa	Bory & Chaub.	Nouv. Fl. Pélop. 31. 1838		wfo-0000990473
Crataegus membranacea	Sarg.	Rhodora 5: 186. 1903		wfo-0001004060
Crataegus membranacea	Sarg.	–	—	wfo-0001245784
Crataegus menandiana	Sarg.	–	—	wfo-0001245785
Crataegus mercerensis	Sarg.	J. Arnold Arbor. 3: 197. 1922 [Dec 1922]		wfo-0001010902
Crataegus merita	Sarg.	–	—	wfo-0001245786
Crataegus meticulosa	Sarg.	Trees & Shrubs [Sargent] 2: 243. 1913		wfo-0000995921
Crataegus mexicana	D.Don	in Sweet, Brit. Flow. Gard. Ser. II. 3: t. 300. 1835 [1 Aug 1835]		wfo-0000990475
Crataegus mexicana var. microsperma	Eggl.	Bull. Torrey Bot. Club 36: 508. 1909		wfo-0001399539
Crataegus michauxii	Pers.	Syn. Pl. 2: 38 (1806)		wfo-0001011414
Crataegus michauxii var. lacrimata	(Small) D.B.Ward	Phytologia 91(1): 21. 2009 [Apr 2009]		wfo-0001398678
Crataegus michiganensis	Ashe	North Carolina Agric. Exp. Sta. Bull. no. 175: 111. 1900		wfo-0000995430
Crataegus micracantha	Sarg.	Trees & Shrubs [Sargent] 1: 69, pl. 35. 1903		wfo-0000986988
Crataegus microcarpifolia	C.A.Arnold	; 1939 91, pl.5(f.2-3) 1939	—	wfo-0000990163
Crataegus mikulcicensis	Hrabětová	Preslia 45: 32 (1973)		wfo-0000988758
Crataegus miniata	Ashe	J. Elisha Mitchell Sci. Soc. 20: 51. 1904		wfo-0000986989
Crataegus misella	Sarg.	Bull. New York State Mus. Nat. Hist. 167: 115. 1913		wfo-0000986991
Crataegus mitis	Sarg.	Man. Trees 407, fig. 326. 1905		wfo-0000986993
Crataegus modesta	Sarg.	Rhodora 3: 28. 1901		wfo-0001000510
Crataegus modica	Sarg.	Proc. Acad. Nat. Sci. Philadelphia 57: 624. 1905		wfo-0000986994
Crataegus mollicula	Sarg.	Trees & Shrubs [Sargent] 2: 13, tab. 107. 1907		wfo-0000994860
Crataegus mollipes	Sarg.	Rep. Geol. Surv. Michigan 1906: 545. 1907		wfo-0000986995
Crataegus mollis f. dumetosa	(Sarg.) E.J.Palmer	Ann. Missouri Bot. Gard. 22: 563. 1935 In Steyermark, Rhodora, 40: 133. 1938		wfo-0001325587
Crataegus mollis f. mecocantha	Kruschke	Milwaukee Public Mus. Publ. Bot. 3: 137. 1965 [1 Feb 1965]		wfo-0001325172
Crataegus mollis var. champlainensis	(Sarg.) Cowles	Amer. Naturalist 42: 269. 1908		wfo-0001399540
Crataegus mollis var. ellwangeriana	(Sarg.) Cowles	Amer. Naturalist 42: 269. 1908		wfo-0001399541
Crataegus mollis var. incisifolia	Kruschke	Milwaukee Public Mus. Publ. Bot. 3: 126. 1965 [1 Feb 1965]		wfo-0001399542
Crataegus mollis var. lanuginosa	(Sarg.) Lance	Phytoneuron 2011-3: 6. [2 Feb 2011]		wfo-0001400278
Crataegus mollis var. meridionalis	(Sarg.) J.B.Phipps	Phytoneuron 2012-78: 5. [24 Aug 2012] [epublished]		wfo-0001398799
Crataegus mollis var. texana	(Buckley) Lance	Phytoneuron 2011-3: 6. [2 Feb 2011]		wfo-0001400279
Crataegus mollita	Sarg.	Trees & Shrubs [Sargent] 2: 77, pl. 136. 1908		wfo-0000986997
Crataegus monantha	Sarg.	Trees & Shrubs [Sargent] 2: 237. 1913		wfo-0000995767
Crataegus monogyna	Hayek	Schedae ad floram stiriacum exsiccatam ; 1904 18, no.448 1906	—	wfo-0001013474
Crataegus monogyna f. albo-plena	(hort. ex Rehder) C.K.Schneid.	Illustriertes Handbuch der Laubholzkunde ; 1904 781 1906	—	wfo-0000990278
Crataegus monogyna f. filicifolia	hort. ex Koehne	Deutsche Dendrologie ; 1893 238 1893	—	wfo-0000987425
Crataegus monogyna f. rubro-plena	Rehder ex C.K.Schneid.	Illustriertes Handbuch der Laubholzkunde ; 1904 782 1906	—	wfo-0000990273
Crataegus monogyna subsp. aegeica	(Pojark.) Franco	Feddes Repert. Spec. Nov. Regni Veg. 79(1-2): 37.1968		wfo-1200027009
Crataegus monogyna subsp. calycina	(Peterm.) Cajander	A.J.Melan Suomen kasvio viides painos ; 1906 357 1906		wfo-0001009826
Crataegus monogyna subsp. calycina	(Peterm.) Jáv. & Soó	A Magyar n”v‚nyvil g kozik”nyve etc. = [A handbook of Hungarian flora etc.] A Magyar n”v‚nyvil g kozik”nyve etc. = [A handbook of Hungarian flora etc.]; 1951 250 1951	—	wfo-0000984521
Crataegus monogyna subsp. intermedia	(Schur) Jáv.	Magyar fl¢ra ; 1924 484 1924	—	wfo-0000984563
Crataegus monogyna var. alba-plena	hort. ex Rehder	Cyclopedia of American horticulture ; 1900 396 1900	—	wfo-0000990277
Crataegus monogyna var. alboplena	hort. ex Rehder	Cyclopedia of American horticulture ; 1900 396 1900	—	wfo-0000990324
Crataegus monogyna var. calycina	(Peterm.) Buia	Flora Republicii populare RomŒne ; 1952 260 1956	—	wfo-0000997936
Crataegus monogyna var. coccinea	hort. ex Rehder	Cyclopedia of American horticulture ; 1900 396 1900	—	wfo-0001012506
Crataegus monogyna var. eriocarpa	(Lindl. ex Loudon) Hegi	Illustrierte Flora von Mittel-Europa ; 1906 737 1922	—	wfo-0000998030
Crataegus monogyna var. filicifolia	(Koehne) Lange	Revisio specierum generis Crataegi imprimis earum, quae in Hortis Daniae coluntur ; 1897 38 1897	—	wfo-0000987427
Crataegus monogyna var. heterodonta	(Pojark.) Gost.-Jak.	Arbor. Kórnickie 20: 126, without basionym ref. 1975		wfo-0000998074
Crataegus monogyna var. nordica	(Franco) P.D.Sell	Fl. Gr. Brit. Ireland 2: 523. 2014		wfo-0001400504
Crataegus monogyna var. odemisii	Dönmez & Özderin	PhytoKeys 122: 7. 2019		wfo-1200008766
Crataegus monogyna var. paulii	Rehder	Cyclopedia of American horticulture ; 1900 396, f.578 1900	—	wfo-0000990268
Crataegus monogyna var. poloniensis	(Cinovskis) Cinovskis	Fl. Baltiĭskikh Respublik 2: 117 (1996):.		wfo-0001402497
Crataegus monogyna var. pteridifolia	(Lodd. ex Loudon) K.Koch	; 1853 278 1853	—	wfo-0000998396
Crataegus monogyna var. rosea	(Willd.) K.Koch	; 1853 280 1853	—	wfo-0000987406
Crataegus monogyna var. rubra-plena	hort. ex Rehder	Cyclopedia of American horticulture ; 1900 396 1900	—	wfo-0000990269
Crataegus monogyna var. segobricensis	Pau	Notas b¢tanicas … la flora espa¤ola ; 1887 38 1891	—	wfo-0001014528
Crataegus monogyna var. sericea	Dzetov	God. Zborn. Zemjod.-Sum. Fak. Univ. Skopje 1974: 40.		wfo-0001401186
Crataegus monoli	Doll	Gleditschia 2: 14. 1975 [1974 publ. 1975]		wfo-0000989786
Crataegus monopyrena	Pall.	Reise Russ. Reich. 1: 349. 1771		wfo-0000990476
Crataegus monosperma	Sarg.	Rep. (Annual) Missouri Bot. Gard. 19: 56. 1908		wfo-0000986924
Crataegus monostyla	Peterm.	Analytischer Pflanzenschl?ssel ; 1846 136 1846	—	wfo-0001012330
Crataegus monstrata	Sarg.	Rhodora 5: 146. 1903		wfo-0001001537
Crataegus monstrosa	hort. ex Lavallée	Énum. Arbres 94. 1877		wfo-0000990477
Crataegus mordenensis	Boom	Jaarb. Ned. Dendrol. Ver. No. 21, 115 (1959), reimpr., hybr. artef.		wfo-0000990463
Crataegus moselemensis	Gruber	Bull. Torrey Bot. Club 32: 391. 1905		wfo-0000986902
Crataegus moselemensis var. corrugata	Gruber	Bull. Torrey Bot. Club 32: 391. 1905		wfo-0001399543
Crataegus moyeriana	Sarg.	Proc. Acad. Nat. Sci. Philadelphia 57: 618. 1905		wfo-0000986998
Crataegus multifida	Ashe	J. Elisha Mitchell Sci. Soc. 20: 52. 1904		wfo-0000986999
Crataegus multiflora	hort. ex Lavall.	Arbor. Segrez. 57.	—	wfo-0000990478
Crataegus multipes	Ashe	North Carolina Agric. Exp. Sta. Bull. no. 175: 111. 1900		wfo-0000987000
Crataegus multispina	Ashe	J. Elisha Mitchell Sci. Soc. 17: 7. 1900		wfo-0000987001
Crataegus munita	Sarg.	Rep. (Annual) Missouri Bot. Gard. 19: 73. 1908		wfo-0000986943
Crataegus myrtifolia	C.Presl	Epimel. Bot. 203. 1851 [Oct 1851]		wfo-0000986433
Crataegus nainaica	Krysht.	–	—	wfo-0000990329
Crataegus napaea	Sarg.	Rhodora 7: 203. 1905		wfo-0001001806
Crataegus neapolitana	hort. ex Lavallée	Énum. Arbres 91, nomen. 1877		wfo-0000990432
Crataegus nemoralis	Sarg.	Bot. Gaz. 35: 104. 1903		wfo-0001017444
Crataegus nemorosa	Sarg.	Bull. New York State Mus. Nat. Hist. 150: 28. 1911		wfo-0000987005
Crataegus neo-canbyi	Sarg.	Proc. Acad. Nat. Sci. Philadelphia 57: 638. 1905		wfo-0000987006
Crataegus neofaxonii	Sarg.	J. Arnold Arbor. 6: 2. 1925		wfo-0000987008
Crataegus neolondinensis	Sarg.	Man. Trees 443, fig. 360. 1905		wfo-0000987007
Crataegus neosmithii	Sarg.	J. Arnold Arbor. 6: 2. 1925		wfo-0000987009
Crataegus nescia	Sarg.	Bull. New York State Mus. Nat. Hist. 122: 100. 1908		wfo-0000987010
Crataegus newberryi	Cockerell	; 1908 43 1908	—	wfo-0000990330
Crataegus newelliana	Murrill	Castanea 7: 24. 1942		wfo-0000987011
Crataegus nigra	Pall. ex Steud.	Nomencl. Bot. [Steudel], ed. 2. i. 433.		wfo-0000990433
Crataegus nigra f. arcuatopendula	V.V.Byalt & Firsov	Hortus Botanicus 13: 158. 2018 [Jun 2018] , as 'arcuato-pendula' [epublished]		wfo-1200027618
Crataegus nikotinii	Essenova	Novosti Sist. Vyssh. Rast. 13: 160 (1976)		wfo-0000988808
Crataegus nitens	Sarg.	Rep. (Annual) Missouri Bot. Gard. 1911, xxii. 76.		wfo-0000986916
Crataegus nitida	Sarg.	–	—	wfo-0001245788
Crataegus nitidula	Sarg.	–	—	wfo-0001245789
Crataegus nivea	Host ex Ten.	Cat. Ort. Bot. Nap. 23. 1845 ; cf. D.J. Mabberley in Taxon, 32(1): 84. 1983		wfo-0000990436
Crataegus nobilis	S.G.Gmel.	Reise Russland (S.G.Gmel.) 4: 26. 1784		wfo-0000990437
Crataegus nodulosa	E.Reid	; 1920 126, t.8,f.25 1920	—	wfo-0001014595
Crataegus notabilis	Sarg.	Bull. New York State Mus. Nat. Hist. 122: 32. 1908		wfo-0000987019
Crataegus noveboracencis	Sarg.	Bull. New York State Mus. Nat. Hist. 116, Bot. 10: 22. 1907		wfo-0000987020
Crataegus noveboracensis	Sarg.	in N. Y. State Mus. Rep. 1906, App. 4, 22 (1907).		wfo-0001040484
Crataegus nubicola	Beadle	Biltmore Bot. Stud. 1(2): 126. 1902 [30 Apr 1902]		wfo-0000983592
Crataegus nuda	Sarg.	–	—	wfo-0001245790
Crataegus numerosa	Sarg.	Bull. New York State Mus. Nat. Hist. 122: 90. 1908		wfo-0000987021
Crataegus nupera	Ashe	J. Elisha Mitchell Sci. Soc. xix. 17 (1903).		wfo-0000987022
Crataegus nutans	Sarg.	Rep. Geol. Surv. Michigan 1906: 544. 1907		wfo-0000987023
Crataegus obesa	Ashe	J. Elisha Mitchell Sci. Soc. 20: 47. 1904		wfo-0000994926
Crataegus oblita	Sarg.	Bull. New York State Mus. Nat. Hist. 122: 40. 1908		wfo-0000987024
Crataegus oblongifolia	Sarg.	in N. Y. State Mus. Rep. 1905, App. 6, 60 (1906).		wfo-0000987028
Crataegus obscura	Sarg.	Rep. (Annual) Missouri Bot. Gard. 19: 119. 1908		wfo-0000986947
Crataegus obstipa	Sarg.	Bull. New York State Mus. Nat. Hist. 167: 80. 1913		wfo-0000987029
Crataegus obtecta	Ashe	Bot. Gaz. 33: 233. 1902		wfo-0000987030
Crataegus odorata	Bosc	Nouv. Cours Compl. Agric. [Rozier], ed. 2. 2: 221. 1821		wfo-0000990481
Crataegus odorata	hort.Berol. ex Regel	Index seminum quae hortus botanicus imperialis petropolitanus ; 1835 37 1868	—	wfo-0001007156
Crataegus oenochroa	Gand.	Bull. Soc. Bot. France 18: 448 (1871 publ. 1872)		wfo-0000988826
Crataegus okanaganensis var. longispina	J.B.Phipps	J. Bot. Res. Inst. Texas 7(1): 289. 2013 [27 Aug 2013]		wfo-0001400394
Crataegus olida	Ashe	J. Elisha Mitchell Sci. Soc. 20: 56. 1904		wfo-0000987026
Crataegus olivacea	Sarg.	Proc. Acad. Nat. Sci. Philadelphia 62: 153. 1910		wfo-0000987036
Crataegus oliveriana	Bosc ex DC.	Prodr. [A. P. de Candolle] 2: 630. 1825 [mid Nov 1825]		wfo-0000991876
Crataegus oliviformis	hort.	ex Handl. Trees Kew Pt. i. [Polypet.] (1894) 195.		wfo-0000990482
Crataegus onusta	Ashe	J. Elisha Mitchell Sci. Soc. xix. 22 (1903).		wfo-0000987037
Crataegus opica	Ashe	J. Elisha Mitchell Sci. Soc. xix. 10 (1903).		wfo-0000987038
Crataegus orbicularis	J.B.Phipps & O'Kennon	Sida 20(1): 138 (2002).		wfo-0001005523
Crataegus oreophila	Lance	Phytoneuron 2013-98: 3. [11 Dec 2013] [epublished]		wfo-0001356415
Crataegus orientalis	(Poir.) Bosc ex DC.	Prodromus systematis naturalis regni vegetabilis ; 1823 629 1825	—	wfo-0000987302
Crataegus orientalis	Lindl.	Edwards's botanical register; or, ornamental flower-garden and shrubbery ; 1829 t.1852 1836	—	wfo-0000990148
Crataegus orientalis subsp. pojarkovae	(Kossych) Byatt	Contrib. Crat. Eur. : 89 (1977)		wfo-0001364808
Crataegus ornata	Sarg.	Proc. Rochester Acad. Sci. 4: 120. 1903		wfo-0000987039
Crataegus osiliensis	Cinovskis	Crat. Balt. : 126 (1971)		wfo-0000988874
Crataegus ovalifolia	(Hornem.) DC.	–		wfo-0000990078
Crataegus ovalifolia	Hornem.	Hort. Hal. Suppl. 52.	—	wfo-0000990483
Crataegus ovalifolia	Hornem. ex Koehne	Deutsche Dendrologie ; 1893 233 1893	—	wfo-0001008049
Crataegus ovalis	Kit.	Addit. Fl. Hung. : 586 (1863)		wfo-0000988885
Crataegus ovata	Chalon	Bull. Soc. Roy. Bot. Belgique vii. 174 (1868).		wfo-0000990484
Crataegus ovatifolia	Sarg.	Bull. New York State Mus. Nat. Hist. 122: 92. 1908		wfo-0000987041
Crataegus oxyacantha	Pennant	Arctic Zoology ; 1784 cxv 1784	—	wfo-0001012509
Crataegus oxyacantha	Thuill.	Flore des environs de Paris ; 1799 245 1799	—	wfo-0001009353
Crataegus oxyacantha f. aurea	(Loudon) C.K.Schneid.	Illustriertes Handbuch der Laubholzkunde ; 1904 780 1906	—	wfo-0000990280
Crataegus oxyacantha f. aurea	(Loudon) Hegi	Illustrierte Flora von Mittel-Europa ; 1906 733 1922	—	wfo-0000998654
Crataegus oxyacantha f. decipiens	(Peterm.) Beck	Icones florae germanicae et helveticae ; 1834 24 1913	—	wfo-0000998701
Crataegus oxyacantha f. gireoudi	(Späth ex C.K.Schneid.) Hegi	Illustrierte Flora von Mittel-Europa ; 1906 733 1922	—	wfo-0000987423
Crataegus oxyacantha f. gireoudi	Späth ex C.K.Schneid.	Illustriertes Handbuch der Laubholzkunde ; 1904 780 1906	—	wfo-0000987422
Crataegus oxyacantha f. laciniata	(Wallr.) Beck	Icones florae germanicae et helveticae ; 1834 24 1913	—	wfo-0000998868
Crataegus oxyacantha f. paulii	(Rehder) Rehder	; 1916 222 1916	—	wfo-0000990267
Crataegus oxyacantha f. plena	(Weston) Rehder	Bibliography of cultivated trees and shrubs ; 1949 249 1949	—	wfo-0000990274
Crataegus oxyacantha f. punicea	(Lodd. ex Loudon) Rehder	Bibliography of cultivated trees and shrubs ; 1949 249 1949	—	wfo-0000990265
Crataegus oxyacantha f. rosea	(Willd.) Rehder	Bibliography of cultivated trees and shrubs ; 1949 249 1949	—	wfo-0000987407
Crataegus oxyacantha f. rubra	(C.K.Schneid.) Hegi	Illustrierte Flora von Mittel-Europa ; 1906 733 1922	—	wfo-0000987421
Crataegus oxyacantha f. rubra	C.K.Schneid.	Illustriertes Handbuch der Laubholzkunde ; 1904 780 1906	—	wfo-0000987420
Crataegus oxyacantha f. splendens	C.K.Schneid.	Illustriertes Handbuch der Laubholzkunde ; 1904 780 1906	—	wfo-0000990270
Crataegus oxyacantha subsp. nemorensis	Hrabětová	Preslia 45: 33 (1973)		wfo-0000999070
Crataegus oxyacantha var. albaplena	Bean	Trees and shrubs hardy in the British Isles ; 1914 432 1914	—	wfo-0000990331
Crataegus oxyacantha var. albo-plena	Bean	Trees and shrubs hardy in the British Isles ; 1914 432 1914	—	wfo-0000990279
Crataegus oxyacantha var. caucasica	K.Koch	; 1853 286 1853	—	wfo-0000988259
Crataegus oxyacantha var. coccinea-plena	Bean	Trees and shrubs hardy in the British Isles ; 1914 432 1914	—	wfo-0000990272
Crataegus oxyacantha var. eriocarpa	Lindl. ex Loudon	Arboretum et fruticetum britannicum ; 1838 831, f.607 1838	—	wfo-0000998733
Crataegus oxyacantha var. flore-alba-plena	Rodigas	Flore des serres ; 1845 21, t.1509,f.2 1862	—	wfo-0000990276
Crataegus oxyacantha var. incisa	Regel	Trudy Imp. S.-Peterburgsk. Bot. Sada 1: 117. 1871	—	wfo-0000998775
Crataegus oxyacantha var. laciniata	(Wallr.) H.Lév.	; 1912 182 1912	—	wfo-0000998879
Crataegus oxyacantha var. paulii	Rehder	The Standard cyclopedia of horticulture ; 1914 886, f.1103 1914	—	wfo-0001011217
Crataegus oxyacantha var. plena	Willd.	Berlin. Baumz. 89. 1796		wfo-0000990275
Crataegus oxyacantha var. pteridifolia	Lodd. ex Loudon	Arboretum et fruticetum britannicum ; 1838 831, f.604 1838	—	wfo-0000999140
Crataegus oxyacantha var. punicea	Lodd. ex Loudon	Arboretum et fruticetum britannicum ; 1838 832 1838	—	wfo-0000990266
Crataegus oxyacantha var. rosea	Willd.	Berlin. Baumz. : 89 (1796)		wfo-0000987404
Crataegus oxyacantha var. songarica	K.Koch	; 1853 287 1853	—	wfo-0000989216
Crataegus oxyacantha var. xanthocarpa	(M.Roem.) Lange	Revisio specierum generis Crataegi imprimis earum, quae in Hortis Daniae coluntur ; 1897 71 1897	—	wfo-0000987418
Crataegus oxyacanthoidea	St.-Lag.	Étude Fl., ed. 8 [A. Cariot] 2: 291. 1889		wfo-0000990486
Crataegus oxyacanthoides	G”pp.	; 1852 495 1852	—	wfo-0000990151
Crataegus oxyacanthoides	R.Doll	Nat. Naturschutz Mecklenburg 13: 21 (1975), homonym;.		wfo-0000989793
Crataegus pachyphylla	Sarg.	Rep. (Annual) Missouri Bot. Gard. 19: 54. 1908		wfo-0000986923
Crataegus pactilis	Ashe	J. Elisha Mitchell Sci. Soc. xix. 20 (1903).		wfo-0000987043
Crataegus paddockeae	Sarg.	Rhodora 7: 202. 1905 (as Paddockeae0		wfo-0001001801
Crataegus paineana	Sarg.	Bull. New York State Mus. Nat. Hist. 167: 97. 1913		wfo-0000987044
Crataegus painteriana	Sarg.	Proc. Acad. Nat. Sci. Philadelphia 57[12]: 647 (-648). 1905 [25 Sep 1905]		wfo-0000987045
Crataegus pallescens	Sarg.	Bull. New York State Mus. Nat. Hist. 167: 81. 1913		wfo-0000987046
Crataegus pallida	Salisb.	Prodr. Stirp. Chap. Allerton 357. 1796 [Nov-Dec 1796]		wfo-0000990487
Crataegus pallidula	Sarg.	Ontario Nat. Sci. Bull. no. 4: 36. 1908		wfo-0000987047
Crataegus palustris	Ashe	J. Elisha Mitchell Sci. Soc. 17: 13. 1900		wfo-0000987049
Crataegus panda	Ashe	J. Elisha Mitchell Sci. Soc. xix. 29 (1903).		wfo-0000987058
Crataegus paradoxa	Sarg.	Rep. (Annual) Missouri Bot. Gard. 1911, xxii. 68.		wfo-0000995420
Crataegus parca	Ashe	J. Elisha Mitchell Sci. Soc. 19, pt. 1: 19. 1903		wfo-0000987050
Crataegus parciflora	Sarg.	Rep. (Annual) Missouri Bot. Gard. 19: 60. 1908		wfo-0000986928
Crataegus parkae	Sarg.	Rep. (Annual) Missouri Bot. Gard. 1911, xxii. 70.		wfo-0000986914
Crataegus parvicarpa	E.Reid	; 1923 324, t.10,f.15-17 1923	—	wfo-0001014596
Crataegus parviflora	Lojac.	; 1906 216 1906	—	wfo-0000988923
Crataegus parviflora	Sarg.	Proc. Rochester Acad. Sci. 4: 117. 1903		wfo-0000987052
Crataegus parvifolia	Willd. ex Torr. & A.Gray	Fl. N. Amer. (Torr. & A. Gray) 1(3): 469. 1840 [Jun 1840]		wfo-0000990488
Crataegus pascens	Ashe	J. Elisha Mitchell Sci. Soc. 18, pt. 1: 23. 1902		wfo-0000987053
Crataegus pastorum	Sarg.	Rhodora 3(26): 24 (-25). 1901 [1 Feb 1901]		wfo-0000995202
Crataegus patrum	Sarg.	Rep. (Annual) Missouri Bot. Gard. 19: 95. 1908		wfo-0000986851
Crataegus pauciflora	(Poir.) Pers.	Syn. Pl. [Persoon] 2(1): 37. 1806 [Nov 1806]	—	wfo-0000990489
Crataegus paucifoliata	Pau	Not. Bot. Fl. Españ. i. (1887) 22.		wfo-0000990490
Crataegus paucilobata	Sennen	Exsiccata "Plantes d'Espagne" ; 1906 no.5303 1925	—	wfo-0001010169
Crataegus peckietta	Sarg.	Rhodora 7: 174. 1905		wfo-0001001619
Crataegus peckii	Sarg.	Rhodora 5: 63. 1903		wfo-0001001433
Crataegus pectinata	Bosc ex DC.	Prodr. [A. P. de Candolle] 2: 630. 1825 [mid Nov 1825]		wfo-0000984104
Crataegus pectinata	C.A.Mey.	–	—	wfo-0000990139
Crataegus pectinata	C.K.Schneid.	Illustriertes Handbuch der Laubholzkunde ; 1904 779 1906	—	wfo-0000990137
Crataegus pectinata	hort.	–	—	wfo-0000990140
Crataegus pedicellata var. gloriosa	Sarg.	J. Arnold Arbor. 1: 254 (1920)		wfo-0001382237
Crataegus pedicellata var. robesoniana	(Sarg.) E.J.Palmer	Brittonia 5: 488. 1946		wfo-0001399546
Crataegus pedicellata var. sertata	(Sarg.) Kruschke	Milwaukee Public Mus. Publ. Bot. 3: 184. 1965 [1 Feb 1965]		wfo-0001399548
Crataegus pelacris	Sarg.	Bull. New York State Mus. Nat. Hist. 167: 82. 1913		wfo-0000987056
Crataegus pellecta	Sarg.	Bull. New York State Mus. Nat. Hist. 122: 85. 1908		wfo-0000987057
Crataegus pellucidula	Sarg.	Rhodora 7: 179. 1905		wfo-0001001661
Crataegus pennypackeri	Sarg.	Bot. Gaz. 35: 100. 1903		wfo-0001017443
Crataegus pentandra	Sarg.	Rhodora 3(26): 25 (-26). 1901 [1 Feb 1901]		wfo-0000995227
Crataegus pentaneura	Ashe	J. Elisha Mitchell Sci. Soc. xix. 12 (1903).		wfo-0000987060
Crataegus peramoena	Sarg.	Ontario Nat. Sci. Bull. no. 4: 89. 1908		wfo-0000987061
Crataegus perampla	Sarg.	Rep. Geol. Surv. Michigan 1906: 525. 1907		wfo-0000987059
Crataegus perlaeta	Sarg.	Rep. Geol. Surv. Michigan 1906: 541. 1907		wfo-0000987063
Crataegus perlevis	Ashe	J. Elisha Mitchell Sci. Soc. 20: 48. 1904		wfo-0000987064
Crataegus permera	Sarg.	Rep. (Annual) Missouri Bot. Gard. 19: 65. 1908		wfo-0000986930
Crataegus perrara	Sarg.	Bull. New York State Mus. Nat. Hist. 167: 103. 1913		wfo-0000987065
Crataegus perspicabilis	Sarg.	Bull. New York State Mus. Nat. Hist. 167: 90. 1913		wfo-0000987068
Crataegus peruviana	K.Koch	in Verh. Ver. Bef. Gartenb. II. i. (1853) 297.		wfo-0000990492
Crataegus peshmenii	Dönmez	Bot. J. Linn. Soc. 155(2): 232 (-234; fig. 1, map). 2007 [3 Oct 2007]		wfo-0001356208
Crataegus petiolata	R.Doll	Natur Naturschutz Mecklenburg 13: 23 (1975)		wfo-0000989805
Crataegus phaenopyrum	(L.f.) Borkh.	; 1798 86 1798	—	wfo-0000990493
Crataegus phaenopyrum f. fastigiata	A.D.Slavin	Amer. Midl. Naturalist 12: 364. 1931		wfo-0001325588
Crataegus phaneroneura	Sarg.	J. Arnold Arbor. 3: 2. 1922		wfo-0000986951
Crataegus philadelphica	Sarg.	Proc. Acad. Nat. Sci. Philadelphia 57: 588. 1905		wfo-0001000932
Crataegus philippii	hort. ex Koehne	Deut. Dendrol. (1893) 240. [May 1893]		wfo-0000990494
Crataegus phlebodia	Sarg.	Proc. Acad. Nat. Sci. Philadelphia 62: 155. 1910		wfo-0000987070
Crataegus picta	Sarg.	Ontario Nat. Sci. Bull. no. 4: 91. 1908		wfo-0000987071
Crataegus pilifera	Sarg.	Rep. (Annual) Missouri Bot. Gard. 19: 64. 1908		wfo-0000986929
Crataegus pinnatifida	Franch.	; 1883 288 1883	—	wfo-0000990141
Crataegus pinnatifida f. major	(N.E.Br.) W.Lee	Lineamenta Florae Koreae 471. 1996		wfo-0001324276
Crataegus pinnatifida var. garanica	Paulsen	; 1906 141, f.1 1906	—	wfo-0000999216
Crataegus pinnatifida var. gharanica	Paulsen	; 1906 141, f.1 1906	—	wfo-0001006902
Crataegus pinnatifida var. ghoranica	Paulsen	; 1906 141, f.1 1906	—	wfo-0001002671
Crataegus pinnatifida var. pubescens	Nakai	Ill. Man. Woody Pl. Kor. 285. 1942 (1942)		wfo-1200011594
Crataegus pinschaw	hort. ex Lavallée	Énum. Arbres 92, nomen. 1877		wfo-0000990497
Crataegus pirifolia	hort.Paris.	–	—	wfo-0001005987
Crataegus placiva	Sarg.	in N. Y. State Mus. Rep. 1907, App. 3, 46(1908).		wfo-0000987072
Crataegus placiva	Sarg.	Ontario Nat. Sci. Bull. no. 4: 22. 1908 Bull. N. Y. State Mus. 122: 46. 1908.-New York		wfo-0001005096
Crataegus plagiosepala	Pojark.	Novosti Sist. Vyssh. Rast. 2: 135 (1965)		wfo-0000988977
Crataegus plana	Sarg.	Bull. New York State Mus. Nat. Hist. 122: 45. 1908		wfo-0000987073
Crataegus platyphylla	C.K.Schneid.	Illustriertes Handbuch der Laubholzkunde ; 1904 778 1906	—	wfo-0000990142
Crataegus platyphylla	Lindl. ex Hohen.	Enum. Taluesch. 130.	—	wfo-0000990499
Crataegus podophylla	Gand.	Herborisations dans les Pyr‚n‚es ; 1884 40 1884	—	wfo-0001010170
Crataegus poiretiana	DC.	Prodr. [A. P. de Candolle] 2: 630. 1825 [mid Nov 1825]		wfo-0000990500
Crataegus pojarkovae	Kossych	Novosti Sist. Vyssh. Rast. 1: 147 (1964)		wfo-0000988996
Crataegus pojarkoviae	Kossych	Novosti Sist. Vyssh. Rast. 1: 147 (1964)		wfo-0000987734
Crataegus polita var. tatnalliana	Eggl.	Rhodora 10: 82. 1908		wfo-0001399550
Crataegus polybracteata	Ashe	J. Elisha Mitchell Sci. Soc. 16: 79. 1900		wfo-0000987074
Crataegus polyclada	Sarg.	Rep. (Annual) Missouri Bot. Gard. 1911, xxii. 72.		wfo-0000986915
Crataegus pomifera	Georgi	Bemerk. Reise Russ. Reich 1: 217. 1775		wfo-0000990502
Crataegus poplavskae	Tzvelev	Fl. Vostochnoĭ Evropy 10: 574 (2001).		wfo-0001351310
Crataegus populifolia	Eggl.	An illustrated flora of the Northern United States ; 1913 308, f.2369 1913	—	wfo-0000990143
Crataegus populifolia	Elliott	A sketch of the botany of South-Carolina and Georgia ; 1816 553 1821	—	wfo-0000987075
Crataegus porracea	Ashe	J. Elisha Mitchell Sci. Soc. 17, pt. 2: 19. 1901		wfo-0000987077
Crataegus praeclara	Sarg.	Ontario Nat. Sci. Bull. no. 4: 97. 1908		wfo-0000987078
Crataegus praeformosa	Murrill	Castanea 7: 24. 1942		wfo-0000987079
Crataegus praemonogyna	Krysht.	–	—	wfo-0000989701
Crataegus praestans	Sarg.	Proc. Acad. Nat. Sci. Philadelphia 62: 163. 1910		wfo-0000987080
Crataegus praetermissa	Sarg.	Rhodora 7: 213. 1905		wfo-0001002159
Crataegus premora	Ashe	Ann. Carnegie Mus. 1: 391. 1902		wfo-0000987081
Crataegus pringlei var. exclusa	Eggl.	Rhodora 10: 82 (1908)		wfo-0001012135
Crataegus pringlei var. lobulata	Eggl.	Rhodora 10: 82 (1908)		wfo-0001012144
Crataegus prinoides	Sarg.	Ontario Nat. Sci. Bull. no. 4: 81. 1908		wfo-0000987083
Crataegus prismatica	Ashe	J. Elisha Mitchell Sci. Soc. 17, pt. 2: 15. 1901		wfo-0000987084
Crataegus priva	Ashe	Bull. Charleston Mus. 12: 42. 1916		wfo-0000987086
Crataegus procax	Ashe	Bull. Charleston Mus. 12: 42. 1916		wfo-0000987090
Crataegus procera	Sarg.	Trees & Shrubs [Sargent] 2: 71, pl. 133. 1908		wfo-0000987091
Crataegus proctoriana	Sarg.	Bull. New York State Mus. Nat. Hist. 167: 110. 1913		wfo-0000987092
Crataegus prominens	Sarg.	Ontario Nat. Sci. Bull. no. 4: 23. 1908		wfo-0000987093
Crataegus promissa	Sarg.	Bull. New York State Mus. Nat. Hist. 122: 50. 1908		wfo-0000987094
Crataegus propensa	Sarg.	Proc. Acad. Nat. Sci. Philadelphia 62: 214. 1910		wfo-0000987095
Crataegus propinqua	Ashe	J. Elisha Mitchell Sci. Soc. 20: 53. 1904		wfo-0000987096
Crataegus propixa	Sarg.	Proc. Acad. Nat. Sci. Philadelphia 62: 248. 1910		wfo-0000987097
Crataegus propria	Sarg.	Rhodora 7: 214. 1905		wfo-0001002307
Crataegus pruinosa f. angulata	(Sarg.) E.J.Palmer	Ann. Missouri Bot. Gard. 22: 562. 1935 In Steyermark, Rhodora, 40: 133. 1938		wfo-0001017475
Crataegus pruinosa f. ciliata	Rickett	Bot. Gaz. 97: 792. 1936		wfo-0001325589
Crataegus pruinosa f. glaberrima	Rickett	Bot. Gaz. 97: 793. 1936		wfo-0001325590
Crataegus pruinosa f. mecocantha	Kruschke	Milwaukee Public Mus. Publ. Bot. 3: 94. 1965 [1 Feb 1965]		wfo-0001325591
Crataegus pruinosa f. puberula	Rickett	Bot. Gaz. 97: 793. 1936		wfo-0001325592
Crataegus pruinosa	hort.	–	—	wfo-0001005995
Crataegus pruinosa var. gattingeri	(Ashe) Lance	Phytoneuron 2011-3: 7. [2 Feb 2011]		wfo-0001400281
Crataegus prunellifolia	Bosc ex DC.	Prodr. [A. P. de Candolle] 2: 627. 1825 [mid Nov 1825]		wfo-0000990144
Crataegus prunifolia	Bosc ex DC.	Prodr. [A. P. de Candolle] 2: 627. 1825 [mid Nov 1825]		wfo-0000989905
Crataegus prunifolia	J.Gordon, T.Dermer & R.Edmonds	A catalogue of Forest Trees, Flowering Shrubs, Plants Flower-Roots, and Seeds ; 1782 10 1782	—	wfo-0000990236
Crataegus prunifolia	W.Young	Cat. Arbres, Arbustes & Pl. Herb. Am. 7. 1783		wfo-0000990503
Crataegus prunifolia var. splendens	Osborn	The Gardener's chronicle ; 1887 146, t. 1925	—	wfo-0000989138
Crataegus przewalskii	Pojark.	Bot. Mater. Gerb. Bot. Inst. Komarova Akad. Nauk S.S.S.R. 13: 80. 1950		wfo-0000990504
Crataegus pseudoalemanniensis	R.Doll	Natur Naturschutz Mecklenburg 13: 23 (1975)		wfo-0000989807
Crataegus pseudoambigua	Pojark.	Fl. URSS 9: 509 (1939)		wfo-0000989808
Crataegus pseudoambigua	Pojark.	Fl. URSS 9: 509 (1939)		wfo-0001131860
Crataegus pseudoazarolus	Popov	–	—	wfo-0001131861
Crataegus pseudomelanocarpa	Popov	; 1935 59 1935	—	wfo-0001006102
Crataegus pseudooxyacantha	Cinovskis	Crat. Balt. : 70 (1971)		wfo-0000989821
Crataegus pterifolia	Lodd.	–	—	wfo-0000990146
Crataegus puberis	Sarg.	Bull. New York State Mus. Nat. Hist. 122: 73. 1908		wfo-0001131675
Crataegus pubescens f. humboldtii	Stapf	Bull. Misc. Inform. Kew 1914(8): 293, 297. [29 Oct 1914]		wfo-0001325332
Crataegus pubescens var. botterii	Eggl.	Bull. Torrey Bot. Club 36: 506. 1909		wfo-0001399552
Crataegus pubifolia	Ashe	North Carolina Agric. Exp. Sta. Bull. no. 175: 114. 1900		wfo-0000987127
Crataegus pubipes	Ashe	North Carolina Agric. Exp. Sta. Bull. no. 175: 114. 1900		wfo-0000987128
Crataegus pudens	Sarg.	Rep. (Annual) Missouri Bot. Gard. 19: 122. 1908		wfo-0000986950
Crataegus pulcherrima var. incilis	(Beadle) Lance	Phytoneuron 2011-3: 7. [2 Feb 2011]		wfo-0001400282
Crataegus pulcherrima var. opima	(Beadle) Lance	Phytoneuron 2011-3: 7. [2 Feb 2011]		wfo-0001400283
Crataegus pulchra	Sarg.	Bull. New York State Mus. Nat. Hist. 122: 42. 1908		wfo-0000987129
Crataegus pumila	Sarg.	Proc. Acad. Nat. Sci. Philadelphia 57: 612. 1905		wfo-0000987130
Crataegus punctata	Sol.	Hortus kewensis ; 1789 169 1789	—	wfo-0000990857
Crataegus punctata f. canescens	(Britton) Kruschke	Milwaukee Public Mus. Publ. Bot. 3: 158. 1965 [1 Feb 1965]		wfo-0001325171
Crataegus punctata f. intermedia	Kruschke	Milwaukee Public Mus. Publ. Bot. 3: 25. 1965 [1 Feb 1965]		wfo-0001325170
Crataegus punctata subsp. decipiens	Schuette	Proc. Biol. Soc. Washington 16(Sign. 25): 96. 1903. [25 Jun 1903]		wfo-0001368099
Crataegus punctata var. mutabilis	Gruber	Bull. Torrey Bot. Club 32: 390. 1905		wfo-0001399554
Crataegus punctata var. nitidula	Farw.	Amer. Midl. Naturalist 12: 66. 1930		wfo-0001399555
Crataegus punctata var. tenax	Farw.	Amer. Midl. Naturalist 12: 67. 1930		wfo-0001399556
Crataegus punicea	Fisch. ex Steud.	Nomencl. Bot. [Steudel], ed. 2. i. 433.		wfo-0000990507
Crataegus pusilla	Sarg.	in Geol. Surv. Mich. Rep. 553 (1907).		wfo-0000987134
Crataegus putata	Sarg.	–	—	wfo-0001245792
Crataegus pygmaea	Sarg.	Proc. Acad. Nat. Sci. Philadelphia 57: 650. 1905		wfo-0000987136
Crataegus pyracantha	(L.) Pers.	Synopsis plantarum ; 1805 37 1806	—	wfo-0000999367
Crataegus pyracantha	Spach	–	—	wfo-0001011378
Crataegus pyracanthifolia	(Aiton) G.Don	Hort. Brit. [Sweet], ed. 3. 209. 1839 [late 1839]		wfo-0000987137
Crataegus pyracanthifolia	Wender.	Index Seminum [Marburg] 1825: 6. [1825]		wfo-0000986060
Crataegus pyramidata	Sarg.	Proc. Acad. Nat. Sci. Philadelphia 62: 196. 1910		wfo-0000987139
Crataegus pyricarpa	Doll	Gleditschia 29. 1975 [1974 publ. 1975]		wfo-0000989831
Crataegus pyrifolia	Moench	Verz. Ausländ. Bäume 30. 1785		wfo-0000990508
Crataegus pyrifolia	[Soland.]	Hort. Kew. [W. Aiton] 2: 168. 1789		wfo-0000987140
Crataegus pyrifolia subsp. sylvestris	Schuette	Proc. Biol. Soc. Washington 16(Sign. 25): 96. 1903 [25 Jun 1903]		wfo-0001368179
Crataegus pyriformis	Britton	Bull. New York Bot. Gard. 1: 449. 1900		wfo-0000987141
Crataegus pyriformis	Jacques	Journ. Soc. Imp. Centr. Hort. iv. 599 (1858).		wfo-0000990509
Crataegus pyriformis	M.Roem.	–	—	wfo-0000990147
Crataegus pyripulchra	Murrill	Castanea 7: 25. 1942		wfo-0000987142
Crataegus quaesita var. egens	(Beadle) Lance	Phytoneuron 2011-3: 5. [2 Feb 2011]		wfo-0001040326
Crataegus quaesita var. floridana	(Sarg.) Lance	Phytoneuron 2011-3: 5. [2 Feb 2011]		wfo-0001400277
Crataegus quercina	Ashe	J. Elisha Mitchell Sci. Soc. 18, pt. 1: 27. 1902		wfo-0000987144
Crataegus quinebaugensis	Sarg.	Rhodora 7: 194. 1905		wfo-0001001749
Crataegus quitensis	Benth.	Pl. Hartw. [Bentham] 173. 1845 [Aug 1845]		wfo-0000990383
Crataegus raavadensis	Raunk.	Biol. Meddel. Kongel. Danske Vidensk. Selsk. 5: 68 (1925)		wfo-0000989073
Crataegus radiata	Sarg.	Bull. New York State Mus. Nat. Hist. 122: 42. 1908		wfo-0000987146
Crataegus radina	Sarg.	Proc. Acad. Nat. Sci. Philadelphia 62: 203. 1910		wfo-0000987147
Crataegus radiosa	Sarg.	Proc. Acad. Nat. Sci. Philadelphia 57: 657. 1905		wfo-0000987149
Crataegus radnotigyarmatii	Ker.-Nagy	Kárpát-Pannon és Illír Régió Vadon Termo Galagonyáinak Monogr. 190. 2015 (2015)		wfo-1000038125
Crataegus ramosa	Sarg.	Bull. New York State Mus. Nat. Hist. 122: 86. 1908		wfo-0000987150
Crataegus rara	Sarg.	Trees & Shrubs [Sargent] 2: 241. 1913		wfo-0000995902
Crataegus ravenelii f. superba	Murrill	Castanea 7: 26. 1942		wfo-0001325593
Crataegus recordabilis	Sarg.	Proc. Acad. Nat. Sci. Philadelphia 62: 199. 1910		wfo-0000987151
Crataegus recta	Sarg.	Bull. New York State Mus. Nat. Hist. 122: 97. 1908		wfo-0000987152
Crataegus redolens	Ashe	J. Elisha Mitchell Sci. Soc. xix. 14 (1903).		wfo-0000987153
Crataegus remota	Sarg.	Trees & Shrubs ii. 241 (1913).		wfo-0000995652
Crataegus repentina	Sarg.	Proc. Acad. Nat. Sci. Philadelphia lxii. 226. 1910		wfo-0000987154
Crataegus repulsans	Sarg.	in N. Y. State Mus. Rep. 1907, App. 3, 107 (1908).		wfo-0000987155
Crataegus resecta	Ashe	J. Elisha Mitchell Sci. Soc. xix. 23 (1903).		wfo-0000987156
Crataegus reses	Ashe	J. Elisha Mitchell Sci. Soc. 20: 55. 1904		wfo-0000987158
Crataegus retrusa	Ashe	J. Elisha Mitchell Sci. Soc. 20: 49. 1904		wfo-0000987159
Crataegus rhipidophylla var. browicziana	(K.I.Chr.) Dönmez	Bot. J. Linn. Soc. 155(2): 237. 2007 [3 Oct 2007]		wfo-0001400040
Crataegus rhipidophylla var. kutahyaensis	Dönmez	Bot. J. Linn. Soc. 155(2): 237 (-239; fig. 4, map). 2007 [3 Oct 2007]		wfo-0001400041
Crataegus rhombea	Bosc	Nouv. Cours Compl. Agric. [Rozier], ed. 2. 2: 223. 1821		wfo-0001354098
Crataegus rhombifolia	Sarg.	Rhodora 5: 183 (-184). 1903 [Jul 1903]		wfo-0001001322
Crataegus ribesius	Bertol.	Misc. Bot. (Bertol.) xxii. 14. t. 2.		wfo-0000990518
Crataegus ridgwayi	Sarg.	J. Arnold Arbor. 6: 2. 1925		wfo-0000987160
Crataegus rigida	Sarg.	Rep. (Annual) Missouri Bot. Gard. 19: 99. 1908		wfo-0000986940
Crataegus rimosiformis	Murrill	Castanea 7: 26. 1942		wfo-0000987161
Crataegus riparia	Ashe	J. Elisha Mitchell Sci. Soc. 17: 11. 1900		wfo-0000987162
Crataegus rivalis	Sarg.	Proc. Acad. Nat. Sci. Philadelphia 57: 580. 1905		wfo-0000987163
Crataegus rivularis	Brew. & S.Watson	Bot. California [W.H.Brewer] i. 189. 1876 [May-Jun 1876]		wfo-0000990521
Crataegus rivularis var. cuneata	Nutt.	N. Amer. Sylv. [Nuttall] 2: 9. 1849		wfo-0001399561
Crataegus robbinsiana	Sarg.	Rhodora 7: 197. 1905		wfo-0001001781
Crataegus robbinsoniana	Sarg.	Rhodora 7(83): 197–198 1905	—	wfo-0001241492
Crataegus robinsonii	Sarg.	Rhodora 5: 184. 1903		wfo-0001001601
Crataegus robur f. megacarpa	Murrill	Castanea 7: 27. 1942		wfo-0001325594
Crataegus robur f. sulphurea	Murrill	Castanea 7: 27. 1942		wfo-0001325595
Crataegus robusta	Sarg.	Bull. New York State Mus. Nat. Hist. 122: 28. 1908		wfo-0000987164
Crataegus rominens	Sarg.	; 1908 23 1908	—	wfo-0000990523
Crataegus rosacea	R.Doll	Natur Naturschutz Mecklenburg 13: 23 (1975)		wfo-0000989834
Crataegus rosea	hort. ex DC.	Prodr. [A. P. de Candolle] 2: 628. 1825 [mid Nov 1825]		wfo-0000990524
Crataegus rotunda	Sarg.	Rep. (Annual) Missouri Bot. Gard. 19: 59. 1908		wfo-0000986927
Crataegus rotundata	Sarg.	–	—	wfo-0001245794
Crataegus rotundifolia	(Ehrh.) Borkh.	Arch. Bot. [Leipzig] 1(3): 87. 1798 [Jul-Dec 1798]	—	wfo-0001008041
Crataegus rotundifolia	Eggl.	–	—	wfo-0000987434
Crataegus rotundifolia f. rubescens	Sarg.	J. Arnold Arbor. 3: 197. 1922 [Dec 1922]		wfo-0001017271
Crataegus rotundifolia var. bicknellii	Eggl.	Rhodora 10: 79. 1908		wfo-0001399563
Crataegus rotundifolia var. faxonii	Eggl.	Rhodora 10: 79. 1908		wfo-0001399565
Crataegus roubalii	Chrtek & Křísa	Novit. Bot. Inst. Horto Bot. Univ. Carol. Prag. 1973-1975: 34 (1976)		wfo-0000989839
Crataegus rubescens	Ashe	North Carolina Agric. Exp. Sta. Bull. no. 175: 111. 1900		wfo-0000987169
Crataegus rubicunda	Sarg.	Proc. Rochester Acad. Sci. 4: 121. 1903		wfo-0000987170
Crataegus rubicundula	Sarg.	Trees & Shrubs [Sargent] 2: 7, tab. 104. 1907		wfo-0000987172
Crataegus rubrifolia	Sarg.	Rep. (Annual) Missouri Bot. Gard. 19: 66. 1908		wfo-0000986931
Crataegus rubrisepala	Sarg.	Rep. (Annual) Missouri Bot. Gard. 19: 70. 1908		wfo-0000986934
Crataegus rubrocarnea	Sarg.	Bull. New York State Mus. Nat. Hist. 105, Bot. 9: 55. 1906		wfo-0001131788
Crataegus rubrolutea	Sarg.	Bull. New York State Mus. Nat. Hist. 122: 88. 1908		wfo-0000987173
Crataegus rudis	Sarg.	Rep. (Annual) Missouri Bot. Gard. 19: 71. 1908		wfo-0000986935
Crataegus rufipes	Ashe	J. Elisha Mitchell Sci. Soc. 20: 51. 1904		wfo-0000987174
Crataegus rupestris	Ashe	J. Elisha Mitchell Sci. Soc. 18, pt. 1: 27. 1902		wfo-0000987175
Crataegus rupicola	Sarg.	Rep. (Annual) Missouri Bot. Gard. 19: 121. 1908		wfo-0000986949
Crataegus rupicola	Sarg.	Rep. (Annual) Missouri Bot. Gard. 19: 121. 1908		wfo-0001241469
Crataegus ruricola	Sarg.	Proc. Acad. Nat. Sci. Philadelphia 62: 206. 1910		wfo-0000987176
Crataegus russanovii f. latifolia	Cinovskis	Boyaryshniki Pribaltiki 179, without type. 1971		wfo-0001326212
Crataegus russanovii f. rubella	Cinovskis	Boyaryshniki Pribaltiki 179. 1971		wfo-0001326213
Crataegus russata	Sarg.	Bull. New York State Mus. Nat. Hist. 167: 85. 1913		wfo-0000987177
Crataegus ruthiana	Sarg.	Proc. Acad. Nat. Sci. Philadelphia 57: 591. 1905		wfo-0000987178
Crataegus rutila	Sarg.	Bot. Gaz. 35: 399. 1903		wfo-0001017461
Crataegus salviifolia	(DC.) Chalon	Bull. Soc. Roy. Bot. Belgique vii. 174 (1868).		wfo-0000990526
Crataegus sanguinea	J.G.Cooper	Amer. Naturalist iii. (1870) 407.		wfo-0000990527
Crataegus sanguinea	Miq.	Prolusio florae japonicae ; 1865 228 1867	—	wfo-0000999372
Crataegus sanguinea	Turcz.	Flora baicalensis-dahurica ; 1842 407 1843	—	wfo-0001006897
Crataegus sanguinea f. chlorocarpa	(K.Koch) Cinovskis	Boyaryshniki Pribaltiki 184. 1971		wfo-0001326214
Crataegus sanguinea var. songorica	Regel	Index Seminum [St.Petersburg (Petropolitanus)] 1876: 36. [Dec 1876]		wfo-0001399700
Crataegus sargentii var. gilva	(Beadle) Lance	Phytoneuron 2011-3: 8. [2 Feb 2011]		wfo-0001400284
Crataegus sarmatica	Krysht. & Baik.	–	—	wfo-0000990596
Crataegus sarniensis	Sarg.	Ontario Nat. Sci. Bull. no. 4: 34. 1908		wfo-0000987181
Crataegus saturata	Sarg.	Proc. Acad. Nat. Sci. Philadelphia 57: 619. 1905		wfo-0000987182
Crataegus sauratonae	Ashe	Bot. Gaz. 28: 270. 1899		wfo-0001017465
Crataegus saxatilis	Sarg.	Proc. Acad. Nat. Sci. Philadelphia 57: 640. 1905		wfo-0000987183
Crataegus scabera	Sarg.	Trees & Shrubs [Sargent] 2: 245. 1913		wfo-0000996008
Crataegus scabriuscula	Sarg.	Proc. Acad. Nat. Sci. Philadelphia 57: 605. 1905		wfo-0000987184
Crataegus scandica	Wahlenb.	Fl. Upsal. 165.		wfo-0000990528
Crataegus schisticola	Gand.	Herborisations dans les Pyr‚n‚es ; 1884 59 1884	—	wfo-0001010172
Crataegus schneckii	Ashe	J. Elisha Mitchell Sci. Soc. 17: 8. 1900		wfo-0000987185
Crataegus schroederi	(Regel) Koehne ex Späth	Sp„th Catalogue ; 1720 90 1905	—	wfo-0000990153
Crataegus schuettei var. gigantea	Kruschke	Milwaukee Public Mus. Publ. Bot. 3: 75. 1965 [1 Feb 1965]		wfo-0001399567
Crataegus schweinitziana	Sarg.	Proc. Acad. Nat. Sci. Philadelphia 57: 652. 1905		wfo-0000987186
Crataegus scitula	Sarg.	Bull. New York State Mus. Nat. Hist. 167: 84. 1913		wfo-0000987187
Crataegus scopulorum	Sarg.	Proc. Acad. Nat. Sci. Philadelphia 62: 227. 1910		wfo-0000987188
Crataegus scorna	Sarg.	–	—	wfo-0001220320
Crataegus searsii	Sarg.	Rhodora 7: 183. 1905		wfo-0001001693
Crataegus seclusa	Sarg.	Trees & Shrubs [Sargent] 2: 239. 1913		wfo-0000995789
Crataegus sect. Pinnatifidae	C.K.Schneid.	Ill. Handb. Laubholzk. [C.K.Schneider] 1(5): 768., 769. 1906 [1 May 1906]		wfo-1000036168
Crataegus sect. Salignae	T.A.Dickinson & Ufimov	Phytologia 102(3): 183. 2020		wfo-1000021817
Crataegus secta	Sarg.	Rep. (Annual) Missouri Bot. Gard. 19: 83. 1908		wfo-0000994948
Crataegus sectilis	Ashe	J. Elisha Mitchell Sci. Soc. xix. 23 (1903).		wfo-0000987190
Crataegus seducta	Sarg.	Rep. (Annual) Missouri Bot. Gard. 1911, xxii. 79.		wfo-0000986918
Crataegus seelyana	Sarg.	Rhodora 7: 209. 1905		wfo-0001001844
Crataegus segobricensis	(Pau) Willk.	Supplementum prodromi florae hispanicae ; 1893 221 1893	—	wfo-0001007752
Crataegus semilobata	Bluff & Fing.	Comp. Fl. German. 1: 614 (1825)		wfo-0000990529
Crataegus sequax	Ashe	J. Elisha Mitchell Sci. Soc. 20: 50. 1904		wfo-0000987192
Crataegus ser. Pinnatifidae	(C.K.Schneid.) Rehder	Man. Cult. Trees, ed. 2 372. 1940		wfo-1200010778
Crataegus sera	Sarg.	Bot. Gaz. 33: 115. 1902		wfo-0000995246
Crataegus serena	Sarg.	Rhodora 7: 201. 1905		wfo-0001001795
Crataegus sericeus	Dzekov	Prilozi, Makedonska Akademija na Naukite i Umetnostite. Oddelenie za Bioloski i Medicinski Nauki ; 1969 70 1977	—	wfo-0001014195
Crataegus serotina	Salisb.	Prodr. Stirp. Chap. Allerton 357. 1796 [Nov-Dec 1796]		wfo-0000990530
Crataegus serrata	Poir.	Encycl. [J. Lamarck & al.] Suppl. 1. 292. 1810 [3 Sep 1810]		wfo-0000990531
Crataegus serrulata	Poir.	Encycl. [J. Lamarck & al.] Suppl. 1. 292. 1810 [3 Sep 1810]		wfo-0000990532
Crataegus setosa	Sarg.	Rep. (Annual) Missouri Bot. Gard. 19: 72. 1908		wfo-0000986936
Crataegus severa	Sarg.	Trees & Shrubs [Sargent] 2: 59, pl. 127. 1908		wfo-0000987193
Crataegus shallotte	Ashe	North Carolina Agric. Exp. Sta. Bull. 175: 113. 1900		wfo-0000987194
Crataegus shicola	Buch.-Ham. ex D.Don	Prodr. Fl. Nepal. 238. 1825 [26 Jan-1 Feb 1825]		wfo-0000990534
Crataegus shirleyensis	Sarg.	Trees & Shrubs [Sargent] 2: 244. 1913		wfo-0001012567
Crataegus shuswapensis	J.B.Phipps & O'Kennon	Sida 20(1): 128 (2002).		wfo-0001005521
Crataegus sicula	K.Koch	in Verh. Ver. Bef. Gartenb. II. i. (1853) 288.		wfo-0001355469
Crataegus siderea	Sarg.	Proc. Acad. Nat. Sci. Philadelphia 62: 212. 1910		wfo-0000987197
Crataegus sieboldii	Steud.	Nomencl. Bot. [Steudel], ed. 2. i. 434.		wfo-0000990535
Crataegus silicensis	(Hrabětová) T.Baranec	Acta Dendrol. 11: 41 (1986)		wfo-0000989850
Crataegus silvestris	Sarg.	–	—	wfo-0001245796
Crataegus silvicola var. beckwithae	Eggl.	Rhodora 10: 81. 1908		wfo-0001399569
Crataegus simulans	Sarg.	Bull. New York State Mus. Nat. Hist. 122: 125. 1908		wfo-0000987198
Crataegus sinensis	Lour. ex Gomes	Mem. Acad. Sc. Lisb. Cl. Sc. Pol. Mor. Bel.-Let. n. s. iv. (1), 29 (1868); Merrill in Trans. Am. Phil. Soc. n. s. xxiv. II. 17, 179 (1935), in syn.		wfo-0000990537
Crataegus singularis	Sarg.	Bull. New York State Mus. Nat. Hist. 122: 106. 1908		wfo-0000987199
Crataegus sinistra	Beadle	Biltmore Bot. Stud. 1(1): 44. 1901 [8 Apr 1901]		wfo-0000995013
Crataegus slavinii	Sarg.	Bull. New York State Mus. Nat. Hist. 122: 57. 1908		wfo-0000987202
Crataegus sordida	Sarg.	Bot. Gaz. 33(2): 114. 1902 [Feb 1902]		wfo-0000994956
Crataegus sordida var. villosa	Sarg.	J. Arnold Arbor. 6: 2. 1925		wfo-0001399570
Crataegus sororia var. segnis	(Beadle) Lance	Phytoneuron 2011-3: 2. [2 Feb 2011]		wfo-0001400270
Crataegus sororia var. visenda	(Beadle) Lance	Phytoneuron 2011-3: 3. [2 Feb 2011]		wfo-0001400271
Crataegus spathulata	hort. ex Lavall.	Arbor. Segrez. 13.		wfo-0000990541
Crataegus spatifolia	Sarg.	Bull. New York State Mus. Nat. Hist. 122: 98. 1908		wfo-0000987204
Crataegus spatiosa	Sarg.	–	—	wfo-0001245797
Crataegus spectabilis	Carrière	Rev. Hort. [Paris]. (1873) 471.		wfo-0000990543
Crataegus spectabilis	Salisb.	Prodr. Stirp. Chap. Allerton 357. 1796 [Nov-Dec 1796]		wfo-0000990542
Crataegus spinea	Sarg.	Bull. New York State Mus. Nat. Hist. 167: 122. 1913		wfo-0000987207
Crataegus spinifera	Sarg.	Bull. New York State Mus. Nat. Hist. 122: 111. 1908		wfo-0000987208
Crataegus spinosa	Gilib.	Fl. Lit. Inch. ii. 231. 1782		wfo-0000990545
Crataegus spinosissima	G.Lodd.	Bot. Cab. 11(10): t. 1100. 1826 [Jun 1826]		wfo-0001018649
Crataegus spinosissima	hort.	ex Handl. Trees Kew Pt. i. [Polypet.] (1894) 205.		wfo-0000990546
Crataegus spinulosa	Sarg.	Rep. (Annual) Missouri Bot. Gard. 19: 120. 1908		wfo-0000986948
Crataegus spiralis	Steud.	Nomencl. Bot. [Steudel], ed. 2. i. 434.		wfo-0000990547
Crataegus splendens	Chalon	Bull. Soc. Roy. Bot. Belgique vii. 174 (1868).		wfo-0000990550
Crataegus splendens	Lodd.	Catalogue of plants ; 1830 41 1830	—	wfo-0000990079
Crataegus splendens	Wender.	Index Seminum [Marburg] 1825: 6. [1825]		wfo-0000990156
Crataegus splendens	hort.	ex Handl. Trees Kew Pt. i. [Polypet.] (1894) 199.		wfo-0000990549
Crataegus splendens	hort. ex Lavallée	Énum. Arbres 90, nomen. 1877		wfo-0001008056
Crataegus splendida	Sarg.	Ontario Nat. Sci. Bull. no. 4: 45. 1908		wfo-0000987211
Crataegus stellata	Sarg.	Trees & Shrubs [Sargent] 2: 244. 1913		wfo-0000995977
Crataegus stenophylla	Sarg.	Ontario Nat. Sci. Bull. no. 4: 76. 1908		wfo-0000987212
Crataegus steubenensis	Sarg.	Bull. New York State Mus. Nat. Hist. 122: 103. 1908		wfo-0000987213
Crataegus stipulacea	Lodd.	Cat. Plants 40 (1826), nomen.		wfo-0000987214
Crataegus stipulacea-microphylla	hort.	–	—	wfo-0000990551
Crataegus stratfordensis	Sarg.	Rhodora 7: 178. 1905		wfo-0000989266
Crataegus streeterae	Sarg.	Proc. Rochester Acad. Sci. 4: 119. 1903		wfo-0000987215
Crataegus stricta	hort. ex Starcs	Koku un Krumu Noteicejs 234 (1925), in syn.		wfo-0000990552
Crataegus strigosa	Sarg.	Bull. New York State Mus. Nat. Hist. 122: 51. 1908		wfo-0000987216
Crataegus strongylophylla	Sarg.	Rep. (Annual) Missouri Bot. Gard. 19: 44. 1908		wfo-0000986919
Crataegus structilis	Ashe	J. Elisha Mitchell Sci. Soc. xix. 12 (1903).		wfo-0000987217
Crataegus suavis	Sarg.	Bull. New York State Mus. Nat. Hist. 122: 59. 1908		wfo-0000987218
Crataegus subaria	Spach	Histoire naturelle des v‚g‚taux ; 1834 108 1834	—	wfo-0000994413
Crataegus subaria	Spach ex Koehne	Deutsche Dendrologie ; 1893 251 1893	—	wfo-0001008091
Crataegus subaudens	Murrill	Castanea 7: 27. 1942		wfo-0000987219
Crataegus subflavida	Murrill	Castanea 7: 28. 1942		wfo-0000987220
Crataegus subgen. Brevispinae	(Beadle) Ufimov & T.A.Dickinson	Phytologia 102(3): 182. 2020		wfo-1200007839
Crataegus subheterophylla	P.D.Sell	Fl. Gr. Brit. Ireland 2: 523. 2014		wfo-0001356649
Crataegus subpaludosa	Murrill	Castanea 7: 28. 1942		wfo-0000987222
Crataegus subserrata	Benth.	Pl. Hartw. [Bentham] 10. 1839 [May 1839]	—	wfo-0000989145
Crataegus subserrata	Gand. ex Cariot	?tude des fleurs ; 1872 209 1872	—	wfo-0001010173
Crataegus subsphaerica subsp. domicensis	(Hrabětová) P.A.Schmidt	Atlas Farn. Samenpflanz. Sachs. 51. 2000		wfo-0001368323
Crataegus subspinosa	DC.	Prodr. [A. P. de Candolle] 2: 626. 1825 [mid Nov 1825]		wfo-0000990553
Crataegus subvillosa	Schrad. ex Walp.	Repertorium botanices systematicae ; 1842 58 1843	—	wfo-0001008046
Crataegus subvillosa	hort.	–	—	wfo-0001005994
Crataegus subviridis	Beadle	Biltmore Bot. Stud. 1(2): 51. 1902 [30 Apr 1902]		wfo-0000983598
Crataegus succincta	Sarg.	Rep. (Annual) Missouri Bot. Gard. 19: 78. 1908		wfo-0000994965
Crataegus succulenta	Schrad.	Index seminum horti academici Gottingensis 1834 Index seminum horti academici Gottingensis 1834; 1834 1834	—	wfo-0001008054
Crataegus succulenta var. major	Eggl.	Vermont Agric. Exp. Sta. Bull. 187: 213. 1915		wfo-0001398602
Crataegus sucida	Sarg.	Rep. (Annual) Missouri Bot. Gard. 19: 80. 1908		wfo-0000986938
Crataegus superata	Sarg.	Trees & Shrubs [Sargent] 2: 241. 1913		wfo-0000995879
Crataegus sutherlandensis	Sarg.	J. Arnold Arbor. 3: 192 (1922)		wfo-0001004153
Crataegus sutherlandensis var. spinescens	Sarg.	J. Arnold Arbor. 3: 193. 1922 [Dec 1922]		wfo-0001399572
Crataegus swanensis	Sarg.	J. Arnold Arbor. 3: 182. 1922 [Dec 1922]		wfo-0000986893
Crataegus taetrica	Sarg.	Rep. Geol. Surv. Michigan 1906: 541. 1907		wfo-0000987223
Crataegus talyschensis	Pojark. ex Ufimov	Bot. Zhurn. (Moscow & Leningrad) 96(9): 1254 (-1255; fig.). 2011 [Sep 2011]		wfo-0000749064
Crataegus tanacetifolia	Webb	Iter Hispan. [Webb] 48. 1838 [Sep 1838]		wfo-0000990557
Crataegus tanacetifolia var. leeana	Loudon	Arboretum et fruticetum britannicum ; 1838 828, f.599 1838	—	wfo-0000990310
Crataegus tanaitica	Klokov	Fl. URSS 6: 576 (1954)		wfo-0000989366
Crataegus tardiflora	Sarg.	Rep. (Annual) Missouri Bot. Gard. 19: 47. 1908		wfo-0000986920
Crataegus tardifolia	Ashe	Bull. Charleston Mus. 12: 41. 1916		wfo-0000987224
Crataegus tatarica	hort. ex Asch. & Graebn.	Synopsis der mitteleurop„ischen Flora ; 1896 43 1906	—	wfo-0001008063
Crataegus tenella	Ashe	Ann. Carnegie Mus. 1: 388. 1902		wfo-0001001466
Crataegus tenera	Ashe	J. Elisha Mitchell Sci. Soc. 20: 52. 1904		wfo-0000987225
Crataegus tenuifolia	Britton	Bull. New York Bot. Gard. 1: 448. 1900		wfo-0000987227
Crataegus tenuifolia	Kom.	Trudy Imp. S.-Peterburgsk. Bot. Sada 18: 435. 1901		wfo-0000990559
Crataegus tenuiloba	Sarg.	Proc. Rochester Acad. Sci. 4: 122. 1903		wfo-0000987228
Crataegus tenuirama	Ashe	Bull. Charleston Mus. 12: 41. 1916		wfo-0000987229
Crataegus tenuis	Sarg.	Rep. (Annual) Missouri Bot. Gard. 19: 48. 1908		wfo-0000986921
Crataegus tenuisepala	Sarg.	Rep. (Annual) Missouri Bot. Gard. 19: 68. 1908		wfo-0000986932
Crataegus tenuispina	Sarg.	Rep. (Annual) Missouri Bot. Gard. 19: 58. 1908		wfo-0000986926
Crataegus tenuissima	Sarg.	Trees & Shrubs [Sargent] 2: 243. 1913		wfo-0000995934
Crataegus terminalis	Gouan	Fl. Monsp. (Gouan) 252. 1764 [Dec 1764]		wfo-0000990560
Crataegus tetrica	Beadle	Biltmore Bot. Stud. 1(1): 46. 1901 [8 Apr 1901]		wfo-0000983590
Crataegus thayeri	Sarg.	Rhodora 5: 113. 1903		wfo-0001001452
Crataegus tiliifolia	Koehne ex Lange	Revis. Crataeg. 31.	—	wfo-0000990561
Crataegus tisdalei	Murrill	Castanea 7: 29. 1942		wfo-0000987230
Crataegus tkatschenkoi	K.I.Chr.	Willdenowia 25(2): 633, nom. nov. 1996		wfo-0001005211
Crataegus tomentosa	Eggl.	A manual of the botany of the Northern United States ; 1908 467 1908	—	wfo-0000988154
Crataegus tomentosa	Michx.	Fl. Bor.-Amer. (Michaux) 1: 289. 1803 [19 Mar 1803]		wfo-0000990562
Crataegus tomentosa var. microcarpa	Chapm.	Fl. South. U.S., ed. 3. 139. 1897		wfo-0001399574
Crataegus tomentosa var. pubifolia	(Ashe) Farw.	Amer. Midl. Naturalist 12: 66. 1930		wfo-0001399575
Crataegus tomentosa var. pyrifolia	A.Gray	Manual (Gray), ed. 2. 124. 1856		wfo-0001399576
Crataegus tomentosa var. smithii	Eggl.	Rhodora 10: 79. 1908		wfo-0001399577
Crataegus tomentosa var. structilis	Farw.	Amer. Midl. Naturalist 11: 61. 1928		wfo-0001399578
Crataegus torta	Sarg.	Proc. Acad. Nat. Sci. Philadelphia 62: 176. 1910		wfo-0000987233
Crataegus tortuosa	Sarg.	Bull. New York State Mus. Nat. Hist. 122: 47. 1908		wfo-0000987234
Crataegus tortuosa	hort.	ex Handl. Trees Kew Pt. i. [Polypet.] (1894) 203.		wfo-0000990563
Crataegus trachyphylla	Sarg.	Bot. Gaz. 35: 388 (1903)		wfo-0001017452
Crataegus trahax	Ashe	J. Elisha Mitchell Sci. Soc. xix. 27 (1903).		wfo-0000987235
Crataegus transmississippiensis	Sarg.	J. Arnold Arbor. 3: 7. 1922		wfo-0000986952
Crataegus transmississippiensis	Sarg.	J. Arnold Arbor. 3: 7. 1922		wfo-0001277097
Crataegus transylvanica	hort. ex M.Roem.	Syn. Rosifl. 107. 1847 [Apr 1847]		wfo-0000990564
Crataegus treleasei	Sarg.	Trees & Shrubs [Sargent] 1: 63, pl. 32. 1903		wfo-0000987236
Crataegus tribulosa	Sarg.	Proc. Acad. Nat. Sci. Philadelphia 62: 182. 1910		wfo-0000987240
Crataegus trifoliata	DC.	Prodr. [A. P. de Candolle] 2: 630. 1825 [mid Nov 1825]		wfo-0000990565
Crataegus triloba	Poir.	Voy. Barbarie ii. 176. 1789	—	wfo-0000999181
Crataegus triloba	hort.	–	—	wfo-0001005991
Crataegus trilobata	Labill.	Icon. Pl. Syr. 4: 15. 1812 [11 Mar 1812]		wfo-0000997959
Crataegus trilobata	Labill. ex Poir.	Encyclop‚die m‚thodique. Botanique. Suppl‚ment. ; 1810 291 1810	—	wfo-0000989431
Crataegus trilobata	Tkatsch.	Byull. Glavn. Bot. Sada (Moscow) 126: 34 (1982).	—	wfo-0000987739
Crataegus triosteum	Gruber	Bull. Torrey Bot. Club 32: 392. 1905		wfo-0000986903
Crataegus trisperma	Ashe	J. Elisha Mitchell Sci. Soc. 17, pt. 2: 17. 1901		wfo-0000987241
Crataegus truculenta	Sarg.	Bull. New York State Mus. Nat. Hist. 167: 118. 1913		wfo-0000987242
Crataegus truncata	Sarg.	Rep. (Annual) Missouri Bot. Gard. 19: 57. 1908		wfo-0000986925
Crataegus tulameenesis	Penh.	Report on Tertiary Plants of British Columbia, collected by L.M.Lambe in 1906, together with a discussion of previously recorded Tertiary floras ; 1908 48, f.7 1908	—	wfo-0001014652
Crataegus tumida	Sarg.	Trees & Shrubs [Sargent] 2: 240. 1913		wfo-0000995831
Crataegus turbinata	hort.	–	—	wfo-0001005990
Crataegus turcicus	Dönmez	Ann. Bot. Fenn. 42(1): 62 (61-65; figs. 1-2). 2005 [16 Feb 2005]		wfo-0001011111
Crataegus twiningii	Sarg.	Proc. Acad. Nat. Sci. Philadelphia 62: 230. 1910		wfo-0000987243
Crataegus tzvelevii	Ufimov	Novosti Sist. Vyssh. Rast. 44: 128. 2013 [28 Dec 2013]		wfo-0001356435
Crataegus uber	Ashe	J. Elisha Mitchell Sci. Soc. 20: 47. 1904		wfo-0000987244
Crataegus uhrovae	Soó	Acta Bot. Acad. Sci. Hung. 11: 237. 1965		wfo-0000989865
Crataegus ulotricha	Pojark. ex Gladkova	Novosti Sist. Vyssh. Rast. 30: 96 (1996).		wfo-0000990339
Crataegus umbratilis	Sarg.	Rhodora 7: 192. 1905		wfo-0001001704
Crataegus umbrosa	Sarg.	Rep. (Annual) Missouri Bot. Gard. 19: 106. 1908		wfo-0000986942
Crataegus uncta	Sarg.	Bull. New York State Mus. Nat. Hist. 122: 91. 1908		wfo-0000987245
Crataegus uniflora	Du Roi	Harbk. Baumz. i. 184.		wfo-0000990439
Crataegus uniflora var. brittonii	(Eggl.) Lance	Phytoneuron 2011-3: 7. [2 Feb 2011]		wfo-0001400280
Crataegus uplandia	Sarg.	Proc. Acad. Nat. Sci. Philadelphia 57: 594. 1905		wfo-0000987246
Crataegus urbana	Sarg.	Rep. Geol. Surv. Michigan 1906: 556. 1907		wfo-0000987248
Crataegus urbica	Sarg.	Bull. New York State Mus. Nat. Hist. 167: 105. 1913		wfo-0000987249
Crataegus vaga	Sarg.	Proc. Acad. Nat. Sci. Philadelphia 62: 249. 1910		wfo-0000987251
Crataegus valens	Ashe	J. Elisha Mitchell Sci. Soc. xix. 15 (1903).		wfo-0000987252
Crataegus valliae	Beadle	Flora of the southeastern United States ; 1903 561 1903	—	wfo-0000990093
Crataegus varians	Sarg.	Proc. Acad. Nat. Sci. Philadelphia 62: 225. 1910		wfo-0000987253
Crataegus vegrandis	Sarg.	Proc. Acad. Nat. Sci. Philadelphia 62: 202. 1910		wfo-0000987254
Crataegus velata	Ashe	J. Elisha Mitchell Sci. Soc. 18, pt. 1: 26. 1902		wfo-0000987255
Crataegus venosa	Ashe	J. Elisha Mitchell Sci. Soc. xix. 16 (1903).		wfo-0000987256
Crataegus venusta var. pallens	(Beadle) Lance	Phytoneuron 2011-3: 8. [2 Feb 2011]		wfo-0001400285
Crataegus venustula	Sarg.	Bull. New York State Mus. Nat. Hist. 122: 79. 1908		wfo-0000987257
Crataegus verecunda	Sarg.	Proc. Rochester Acad. Sci. 4: 109. 1903		wfo-0000987259
Crataegus verecunda var. gonocarpa	Peck	Bull. New York State Mus. Nat. Hist. 139: 33. 1910		wfo-0001399580
Crataegus verna	Ashe	J. Elisha Mitchell Sci. Soc. xix. 16 (1903).		wfo-0000987260
Crataegus vernans	Ashe	J. Elisha Mitchell Sci. Soc. xix. 10 (1903).		wfo-0000987261
Crataegus verrucalis	Peck	Bull. New York State Mus. Nat. Hist. 122: 123, 158. 1908		wfo-0000987262
Crataegus versicolor	Rochel	Pl. Banat. Rar. II. [2].		wfo-0000990465
Crataegus vesca	Ashe	J. Elisha Mitchell Sci. Soc. xix. 13 (1903).		wfo-0000987263
Crataegus vestita	(Wall. ex G.Don) Chalon	Bull. Soc. Roy. Bot. Belgique 7: 174 (1868)		wfo-0000990466
Crataegus viatica	Ashe	Ann. Carnegie Mus. 1: 398. 1902		wfo-0000987264
Crataegus vicina	Sarg.	Rep. (Annual) Missouri Bot. Gard. 19: 77. 1908		wfo-0000986937
Crataegus victorinii	Sarg.	J. Arnold Arbor. 3: 203. 1922 [Dec 1922]		wfo-0000986896
Crataegus viidumaegica	Cinovskis	Crat. Balt. : 130 (1971)		wfo-0000989870
Crataegus villiflora	Sarg.	Trees & Shrubs [Sargent] 2: 61, pl. 128. 1908		wfo-0000987265
Crataegus villosa	Dzekov	God. Zborn. Zemjod.-Sum. Fak. Univ. Skopje 1974: 52.		wfo-0000987382
Crataegus viminea	Ashe	J. Elisha Mitchell Sci. Soc. 18, pt. 1: 23. 1902		wfo-0000987266
Crataegus virgata	Ashe	J. Elisha Mitchell Sci. Soc. xix. 24 (1903).		wfo-0000987267
Crataegus viridimontana	Sarg.	Rhodora 7: 204. 1905		wfo-0001001811
Crataegus viridis	Medik.	Gesch. 85.		wfo-0000990468
Crataegus viridis	Walter	Fl. Carol. [Walter] 147. 1788 [Apr-Jun 1788]		wfo-0000990173
Crataegus viridis f. padukensis	E.J.Palmer & Pickens	Neighborhood Res. 4: 61. 1940		wfo-0001325596
Crataegus viridis var. atrorubens	(Ashe) E.J.Palmer	Ann. Missouri Bot. Gard. 22: 561. 1935 In Steyermark, Rhodora, 40: 133. 1938		wfo-0000987269
Crataegus viridis var. glabriuscula	(Sarg.) J.B.Phipps	Novon 16: 386 (2006)		wfo-0001380695
Crataegus viridis var. lutensis	(Sarg.) E.J.Palmer	Rhodora 40: 133 (1938)		wfo-0001012658
Crataegus viridis var. nitens	(Sarg.) J.B.Phipps	Novon 16: 387 (2006)		wfo-0001383177
Crataegus visendiformis	Murrill	Castanea 7: 29. 1942		wfo-0000987271
Crataegus vitellina	Ashe	J. Elisha Mitchell Sci. Soc. 18, pt. 1: 27. 1902		wfo-0000987272
Crataegus walokochiana	(Hrabětová) P.A.Schmidt	Mitt. Flor. Kart. Halle 7(2): 88 (1981):.		wfo-0000990464
Crataegus watsoniana	Steud.	Nomencl. Bot. [Steudel], ed. 2. i. 434.		wfo-0000990441
Crataegus watsonii	Murrill	Castanea 7: 30. 1942		wfo-0000987274
Crataegus websteri	Sarg.	Rhodora 7: 215. 1905		wfo-0001002538
Crataegus websteri	Sarg.	–	—	wfo-0001245799
Crataegus wendlandii	hort. ex Lavallée	Énum. Arbres 93, nomen. 1877		wfo-0000990128
Crataegus werdana	R.Doll	Natur Naturschutz Mecklenburg 13: 26 (1975)		wfo-0000989876
Crataegus wheeleri	A.Nelson	Bot. Gaz. 34: 369. 1902		wfo-0000987281
Crataegus wheeleri	Sarg.	Rep. Geol. Surv. Michigan 1906: 552. 1907		wfo-0000987275
Crataegus wilmorensis	Sarg.	Proc. Acad. Nat. Sci. Philadelphia 62: 168. 1910		wfo-0000987276
Crataegus wisconsinensis	Kruschke	Milwaukee Public Mus. Publ. Bot. 3: 49. 1965 [1 Feb 1965]		wfo-0000987278
Crataegus xanthocarpa	(L.f.) Druce	Bot. Exch. Club Brit. Isles Rep. 1916: 618. 1917		wfo-0000987279
Crataegus xanthocarpa	(L.f.) Medik.	Gesch. Bot. (Medikus) 85. 1793 (as Xanthocarpos)		wfo-0001008032
Crataegus xanthocarpos	Medik.	Gesch. 85.		wfo-0000990080
Crataegus xanthophylla	Sarg.	–	—	wfo-0001245800
Crataegus yaltirikii	Dönmez	Bot. J. Linn. Soc. 155(2): 239. 2007 [3 Oct 2007]		wfo-0001011413
Crataegus zagrica	Khat.	Iran. J. Bot. 8(2): 182 (2000).		wfo-0001011019