Homalopetalum pachyphyllum (L.O. Williams) Dressler Homalopetalum pachyphyllum (L.O. Williams) Dressler in Taxon 13: 246. 1964 sec. Soto-Arenas & al. 2007=Scaphyglottis pachyphylla L.O. Williams in Bot. Mus. Leafl. 12: 244-245. 1946 syn. sec. Soto-Arenas & al. 2007