Epidendrum subg. Hormidium
Introduction The '''subgenus ''Hormidium''''' of the genus ''Epidendrum'' of family Orchidaceae features short pseudobulbs, a creeping growth habit, a very short peduncle, and a lip adnate to the column to its apex. The subgenus was published by Lindley in 1841.In his 1861 treatise on the Orchidaceae, H. G. Reichenbach included only the five species mentioned by Lindley, after stating that the taxon was a synonym for ''Epidendrum Aulizeum''. Three of Lindley's species are now recognized as synonyms for ''Prosthechea pygmaea'', leaving only two species in ''Epidendrum'' subgenus ''Hormidium'' (page numbers refer to H. G. Reichenbach 1861):* ''E. miserum'' Lindl. 1841 (p. 346)* ''E. serpens'' Lindl. 1845 (p. 346)With these species should be included the members of the "Serpens group":* ''E. carmelense''  Hágsater & Dodson 1993* ''E. garayi''  Løjtnant 1977* ''E. ilinazae''  Hágsater & Dodson 1999* ''E. moronense'' Dodson & Hágsater 1989* ''E. oxapampense''  Hágsater 1999* ''E. pachacutequianum'' Hágsater & Collantes 2006* ''E. platyphylloserpens''  Hágsater 2001''E. sophronitis'' Linden & Rchb.f. (1857) was placed in the genus ''Hormidium'' by G. Bentham and J. D. Hooker in 1883.
References