As classified in WFO snapshot
June 2023
Warning: older classification
species
Riccardia engelii
This species name was first published in Revista Mus. Argent. Ci. Nat., Bernardino Rivadavia Inst. Nac. Invest. Ci. Nat., Bot. 4(1): 174. 1972.
This species name has been reclassified since this snapshot. Its current preferred usage is a synonym .