Taxonomic status: Synonym

homotypic synonyms:
Menadenium labiosum (Rich.) Cogn.; Zygopetalum labiosum (Rich.) L.O.Williams; Zygosepalum labiosum (Rich.) C.Schweinf.;

protologue: Actes Soc. Hist. Nat. Paris 1: 112 (1792)
URL protologue: https://archive.org/stream/actesdelasociete1117soci#page/112/mode/2up

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