Roots spreading and spiderlike on substrate, well developed, subterete or slightly flattened, 2-10 cm or longer, 1-1.5 mm in diam. Inflorescences 1-4, erect, 5-10(-20) mm; peduncle and rachis yellowish green, 0.2-0.3 mm in diam.; rachis 1-4-flowered; floral bracts distichous, ovate-lanceolate, 0.7-1 mm, thickly textured. Flowers yellowish green, very small; pedicel and ovary 1.5-2 mm. Sepals and petals connate below middle forming a tube 1-1.5 mm; apical lobes of sepals slightly recurved, ovate-lanceolate, 1.5-2 × ca. 1.2 mm, dorsally slightly carinate, acute. Petals ovate, 1.2-1.8 × ca. 1.1 mm, acute; lip ovate-navicular, 1.7-2.5 × 0.6-0.9 mm, margin incurved, apex acuminate, with a retrorse elongate spinelike appendage, base with a fleshy septum at entrance of spur; spur pouch-shaped, 1-1.5 × ca. 1 mm, rounded. Column ca. 0.5 mm, stelidia ca. 0.5 mm. Capsule ellipsoid-cylindric, ca. 4 × 2 mm. Fl. and fr. Apr-Aug. 2n = 38.
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