Goldblatt P, Henrich JE (1991) Calydorea Herbert (Iridaceae-Tigridieae): Notes on this New World Genus and Reduction to Synonymy of Salpingostylis, Cardiostigma, Itysa, and Catila. Annals of the Missouri Botanical Garden 78(2): 504. doi: 10.2307/2399577.
There is no corrections for Calydorea amabilis yet.