Didactylus butcheri (L.O. Williams) Luer, Monogr. Syst. Bot. Missouri Bot. Gard. 95: 257. 2004.
Bas.: Pleurothallis butcheri L.O. Williams, Fieldiana, Bot. 29(6): 346. 1961. TYPE: Panama. Chiriquí: in mossy cloud forest along branch Río Machomonte, Cordillera, vicinity Volcán, slopes of Chiriquí volcano, alt.4000 m, 19 Jan 1961, Henry P. Butcher 651 (holotype, F).
Bas.: Pleurothallis butcheri L.O. Williams, Fieldiana, Bot. 29(6): 346. 1961.
TYPE: Panama. Chiriquí: in mossy cloud forest along branch Río Machomonte, Cordillera, vicinity Volcán, slopes of Chiriquí volcano, alt.4000 m, 19 Jan 1961, Henry P. Butcher 651 (holotype, F).
HOMOTYPIC SYNONYMS
Acianthera butcheri (L.O. Williams) Pridgeon & M.W. Chase, Lindleyana 16(4): 242. 2001.