Flora of North America species comparison

with prominent, elongate pseudobulbs partially covered by bracts.

per sympodium 1, rarely 2, apical, leathery;

blade conduplicate, oblong-lanceolate, dorsiventrally flattened, margins entire.

blade 8–15 × 1–2.5 cm.

racemes, arising from base of pseudobulb, pendent;

bracts narrowly triangular.

1–2, to 12 cm;

bracts 3–10 mm.

petals and sepals oblong-elliptic, distinct and free;

lip 3-lobed, without nectar cavity, callus shallow;

column with prominent dorsal hood projecting over anther cap, otherwise without wings or arms;

stigmatic cavity longitudinal;

rostellum prominent, beaklike, projecting outward.

cream to pale orange with red-brown to red-purple spots;

sepals 6–120 × 3–6 mm, apex acute;

petals 6–120 × 3–4 mm, apex acute;

lip white to pale yellow with yellow patch near callus, 7–10 × 6–8 mm, lateral lobes nearly circular, middle lobe nearly linear, apex acute and strongly reflexed;

callus of 3 shallow keels;

column white, often with 2 red-brown streaks, 8 mm.

capsules, ellipsoid, ± triangular in cross section.

15–20 mm.