Xylobium sulfurinum (Lem.) Schltr. in Beih. Bot. Centralbl. Abt. 2, 36(2): 493. 1918 sec. Soto-Arenas & al. 2007
- ≡Maxillaria sulfurina Lem., Fl. Serres Jard. Eur. 4: t. 330b, misc. no. 106. 1848 syn. sec. Bogarín & al. 2014
- =Xylobium powelli Schltr. in Repert. Spec. Nov. Regni Veg. Beih. 17: 66. 1922 syn. sec. Bogarín & al. 2014
- =Xylobium tuerckheimii Kraenzl. in Ann. Naturhist. Mus. Wien 44: 325-326. 1930 syn. sec. Soto-Arenas & al. 2007