形态特征：Miniature trunk epiphyte. Roots vermiform, 2.0–7.0 cm long and ca. 1.5 mm thick. Stem pendulous, slender, purplish-red spots, 3.0–6.5 cm long and ca. 1.8 mm thick. Leaves alternate, distichous, narrowly oblong or falcate oblong, 0.9– 2.3 × 0.3–0.5 cm, apex acute and with 1–2 lobules, lobes setaceous, young leaves with conspicuous purplish-red spots, old leaves with hardly any purplish-red spots. Raceme with 1 or 2 flowers; inflorescence stalk curved upward and thickened, 4.0–9.0 mm long, proximally covered with two sheaths; floral bracts ovate-lanceolate, 0.7–1.0 mm long, apex acute; pedicel and ovary connate, 4.0–5.5 mm long; flowers spreading, ca. 6.0 × 5.0 mm; sepals and petals heterochromatic on both surfaces, outside yellow- green with purplish-red spots, inside purplish-red with yellow-green margin; dorsal sepals and lateral sepals similar and equal in size, elliptic-oblong, ca. 2.4 × 1.5 mm, apex obtuse; petals narrowly oblong, ca. 2.6 × 1.3 mm, apex acute, base narrowed; ep- ichile reniform, yellow-green with purplish-red spots, 4.2–6.5 × 2.0–3.0 mm, margin erose, smooth and glabrous above, central thickened purple-red mat with irregular folds; hypochile subconical, yellow-green with purple-red spots, 2–2.4 × 1.6–2 mm, dorsally compressed, slightly bent outward, the apex splits into two conical protru- sions; column cylindrical, ca. 1.0 mm; anther cap subhemispheric, with two chambers, 0.7 × 0.4 mm, hanging from both ends of the stipe; pollinia 2, 0.4 × 0.3 mm, yellow, full and nearly spherical, with a depression in the center; stigma deeply sunken, in- verted V-shaped, ca. 0.6 mm long, yellow, apically forked, forked in a subtriangular outline. Capsule shuttle-shaped with six ribs, green with sparse purplish-red spots, ca. 1.1 cm long, inflated to ca. 0.6 cm in the middle, persistent and growing for one year until maturity.
