Caularthron bilamellatum (Rchb. f.) R.E. Schult. in Bot. Mus. Leafl. 18: 92-101. t. 14-15. 1958 sec. Soto-Arenas & al. 2007
- =Epidendrum bigibberosum Rchb. f. in Ann. Bot. Syst. 6: 346. 1862 syn. sec. Bogarín & al. 2014
- =Epidendrum bilamellatum Rchb. f. in Ann. Bot. Syst. 6: 345-346. 1862 syn. sec. Bogarín & al. 2014
- =Epidendrum indivisum Bradford ex Griseb., Fl. Brit. W. I.: 614. 1864 syn. sec. Bogarín & al. 2014
- =Diacrium bicornutum (Hook.) Benth. in J. Linn. Soc., Bot. 18: 312. 1881 syn. sec. Solano Gómez & al. 2020
- =Diacrium bigibberosum (Rchb. f.) Hemsl., Biol. Cent.-Amer., Bot. 3: 222. 1883 syn. sec. Bogarín & al. 2014
- =Diacrium bilamellatum (Rchb. f.) Hemsl., Biol. Cent.-Amer., Bot. 3: 222. 1883 syn. sec. Bogarín & al. 2014
- =Diacrium indivisum Broadway in Bull. Misc. Inform. Bot. Dept. Trinidad 2: 79. 1895 syn. sec. Solano Gómez & al. 2020
- =Diacrium bicornutum var. indivisum (Bradford ex Griseb.) Cogn., Fl. Bras. 3(5): 188. 1898 syn. sec. Bogarín & al. 2014
- =Diacrium venezuelanum Schltr. in Repert. Spec. Nov. Regni Veg. Beih. 6: 41-42. 1919 syn. sec. Bogarín & al. 2014
- =Diacrium bivalvatulum Schltr. in Repert. Spec. Nov. Regni Veg. Beih. 19: 132-133. 1923 syn. sec. Bogarín & al. 2014