Malaxis abieticola Salazar & Soto Arenas in Lindleyana 16(2): 149, fig. 1. 2001 sec. Soto-Arenas & al. 2007
- =Microstylis tenuis S. Watson in Proc. Amer. Acad. Arts 26: 152-153. 1891 syn. sec. Solano Gómez & al. 2020
- =Malaxis tenuis (S. Watson) Ames in Proc. Biol. Soc. Washington 35(17): 85. 1922 syn. sec. Brown 2003