玉簪羊耳蒜 yu zan yang er suan

Leptorkis auriculata (Blume ex Miquel) Kuntze; Liparis yakusimensis Masamune.

Herbs, terrestrial, often forming large clusters. Pseudobulbs borne 3-5 cm apart, ovoid, slightly compressed, 1-2 × ca. 1.5 cm. Leaves 2; petiole sheathlike, 4-6 cm, not articulate; blade ovate, broadly ovate, or cordate, 4-10 × 3-8 cm, base rounded to cordate and decurrent into petiole, apex acute. Inflorescence 20-30 cm; rachis several to more than 10-flowered; floral bracts lanceolate, 1.5-2.5 mm. Flowers ca. 1 cm in diam., greenish, purplish, or deep purplish red; pedicel and ovary 5-6 mm. Dorsal sepal linear, 6-7 × 1.5-2 mm, apex acute; lateral sepals similar to dorsal sepal, slightly shorter and broader. Petals subfiliform, ca. 6 × 0.5 mm; lip orbicular or ovate-orbicular, 5.5-6 × ca. 5 mm, with 2 subtriangular small calli near base, apex rounded or sometimes apiculate. Column recurved at apex, 3-5 mm, slender, narrowly winged, base dilated. Fl. May-Jul.

Dense forests, damp places; 1000-2500 m. C and N Taiwan [Japan (Ryukyu Islands)].