Pelexia congesta Ames & C. Schweinf. in Schedul. Orchid. 10: 5-7. 1930 sec. Soto-Arenas & al. 2007
- =Pelexia lehmanniana Kraenzl. in Bot. Jahrb. Syst. 26: 500. 1899 syn. sec. Soto-Arenas & al. 2007
- =Pelexia olivacea subsp. congesta (Ames & C. Schweinf.) Szlach., Mytnik & Rutk., Genus: Int. J. Invert. Taxon. 58-59. 2003 syn. sec. Soto-Arenas & al. 2007