Robust terrestrial or epilith. Pseudobulbs cylindrical or club-shaped, to 45 cm long, densely clustered. Leaves 2 or 3, oblong, to 20 cm long, to 6 cm wide. Flowers usually 5-15, to 7.5 cm wide, mostly pink to magenta; autumn to winter. Sepals oblong to elliptic. Petals similar to sepals but broader. Labellum with undulate margins, tubular at base.

C America.

C. amethystoglossa Lindl. & Rchb. f. from Brazil, is a robust epiphyte with long cane-like 2-leaved pseudobulbs and flowers to 10 cm wide with pale pinkish-purple dark-spotted sepals and petals and contrasting magenta labellum midlobe Syn. C. guttata Lindl. var. prinzii Rchb. f.

C. bicolor Lindl. from Brazil, is a robust epiphyte with long cylindrical 2-leaved pseudobulbs and flowers to 10 cm wide with green and brownish sepals and petals and contrasting reddish-purple labellum.

C. guttata Lindl. from Brazil is a robust epiphyte with long cane-like 2-leaved pseudobulbs and flowers to 10 cm wide with yellow-green to olive dark spotted sepals and petals and contrasting purple or magenta labellum midlobe.

Source: Jeanes, J. (2005). Orchidaceae. In: Spencer, R.. Horticultural Flora of South-eastern Australia. Volume 5. Flowering plants. Monocotyledons. The identification of garden and cultivated plants. University of New South Wales Press.