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
 
3153213222 Cattleya amethystoglossa Linden & Rchb.f. ex R.Warner W. Curtis, Bot. Mag., vol. 94 [ser. 3, vol. 24]: t. 5683 (1868) [W.H. Fitch]
 
3420325960 Dendrobium amethystoglossum Rchb.f. W. Curtis, Bot. Mag., vol. 98 [ser. 3, vol. 28]: t. 5968 (1872) [W.H. Fitch]
 
388722 213222 Cattleya amethystoglossa Linden & Rchb.f. ex R.Warner Ill. Hort., vol. 14 : t. 538 (1867) [P. Stroobant]
 
16296258 213222 Cattleya amethystoglossa Linden & Rchb.f. ex R.Warner Addisonia, vol. 24 : t. 781 (1960-1964) [M.E. Eaton]
 
594262 213222 Cattleya amethystoglossa Linden & Rchb.f. ex R.Warner Robert Warner, B.S. Williams, Select Orchid. Pl.: t. 2 (1862) [W.H. Fitch]