Camaridium rhombeum (Lindl.) M.A. Blanco in Lankesteriana 7(3): 521. 2007 sec. APG IV 2016
- =Maxillaria rhombea Lindl. in Edwards's Bot. Reg. 26: t. 12. 1840 syn. sec. Soto-Arenas & al. 2007
- =Psittacoglossum rhombeum (Lindl.) Szlach. & Sitko, Biodiv. Res. Conservation 25: 33. 2012 syn. sec. Schuiteman & Chase 2015