Cyrtochilum englerianum (Kraenzl.) Kraenzl., Notizbl. Bot. Gart. Berlin-Dahlem 7: 95.
1917. h Oncidium englerianum Kraenzl., Beibl. Bot. Jahrb. Syst. 117: 32. 1916. TYPE: Colombia. Lehmann 6005 (holotype, K!; isotype, AMES!, UGDA-DLSz!—drawing).

Pseudobulbs about 5 cm long, 1.5 cm in diameter, oblong-ovoid to almost cylindric, subtended by several sheaths, the uppermost foliaceous, bifoliate. Leaves about 30–40 cm long, up to 3 cm wide, oblanceolate, acute. Inflorescence about 75 cm long, branching,
branches 3–7-flowered. Flowers brown with yellow apices, lip brown up to the apical part, callus yellow. Floral bracts 13–20 mm long, ovate, cucullate. Ovary with pedicel up to 30 mm long. Dorsal sepal clawed; claw about 3 mm long, wingless; blade 12–14 mm long, about 11–14 mm wide, suborbicular to transversely elliptic, obtuse to truncate, base subcordate, margins distantly undulate. Petals clawed; claw about 2 mm long, wingless; blade 12–13 mm long, 8–10.5 mm wide, ovate, acute, margins distantly undulate. Lateral sepals clawed; claw about 6 mm long, wingless; blade 15–18 mm long, 8–10 mm wide, ovate to obovate, acute, margins distantly undulate. Lip up to 15 mm long in total, pandurate in outline, base truncate; basal part up to 4 mm long, about 8 mm wide, semicircular to rectangular; callus composed of numerous digitate projections; apical part up to 10 mm long, ligulate in the lower half, expanded above into a 5 mm long and 10 mm wide transversally elliptic plate, apex emarginated, margins non-undulate. Gynostemium about 6 mm long, with a pair of oblanceolate, upcurved appendages
(Figs. 28 and 29).

Distribution: Colombia. Alt. 2,000–2,740 m