amethystoglossus,-a,-um from Gr. amethystos, amethyst, purple-violet in colour; glossa, tongue: with an amethyst-coloured tongue, i.e with purple-violet lip or labellum
 
31532 213222 Cattleya amethystoglossa Linden & Rchb.f. ex R.Warner W. Curtis, Bot. Mag., vol. 94 [ser. 3, vol. 24]: t. 5683 (1868) [W.H. Fitch]