Cogn., Dict. Icon. des Orch. t. 25.1900
C. skinneri Batem. var. autumnalis P. H. Allen
Epiphyte (or elsewhere semiterrestrial ), to 40 cm tall; pseudobulbs fusiform to cylindrical, usually narrowed toward base, 15-30 cm long, usually 2-leaved from apex, enveloped by leafy bracts at base. Leaves conduplicate, elliptic to oblong-lanceolate, obtuse, coriaceous, 10-15 cm long, 3.5-5.5 cm wide. Inflorescences simple, terminal, few-flowered, erect racemes subtended by spathaceous bracts; flowers large and showy, both the sepals and petals 3-5 cm long, orchid-lavender, the petals broader; lip sessile, very deep orchid-lavender, folded along the edges forming a tube around the column 3-4.5 cm long. Fruits 5-7 cm long, narrowly tapered on both ends, not prominently ridged.
Rare; R. Dressler has seen the species on BCI, but no collections have been made. Flowers in the dry season, mostly from January to March. The fruits develop during the dry season and shed their seeds by early in the rainy season. Costa Rican and Guatemalan collections bearing the name C. skinneri Batem. show flowers from January to March.
Recognized by its large, terminal, showy, purplish flowers, the lip large, tube-shaped, and darker than the petals and sepals.
Costa Rica to Colombia and Venezuela; Trinidad. In Panama, range uncertain; known from tropical moist forest in the Canal Zone, Los Santos, and Darien and from premontane moist forest in Panama (around Bejuco).