Stelis nigriflora (L.O. Williams) Pridgeon & M.W. Chase in Lindleyana 16(4): 264. 2001 sec. Soto-Arenas & al. 2007
- ≡Pleurothallis nigriflora L.O. Williams in Amer. Orchid Soc. Bull. 11: 168. 1942 syn. sec. Hágsater & Soto-Arenas 2003
- =Effusiella nigriflora (L.O. Williams) Luer in Monogr. Syst. Bot. Missouri Bot. Gard. 112: 107. 2007 syn. sec. Solano Gómez & al. 2020