短茎对叶兰 duan jing dui ye lan

Listera brevicaulis King & Pantling, J. Asiat. Soc. Bengal, Pt. 2, Nat. Hist. 65: 126. 1896.

Plants autotrophic, 20-30 cm tall. Rhizome with filiform roots. Stem short, with 1 or 2 membranous sheaths. Leaves 2, opposite, borne below middle of plant and almost prostrate on ground, sessile, cordate to suborbicular, 0.5-1.5 × 0.5-1.5 cm, apex acute. Peduncle 6-8 cm, pubescent, with 1 or 2 sterile bracts; rachis 1-7 cm, subdensely 3-8-flowered, pubescent; floral bracts rhombic. Flowers resupinate, secund, uniformly green; pedicel and ovary 4-8 mm. Dorsal sepal elliptic, ca. 4 × 1 mm; lateral sepals ovate, oblique, ca. 4 × 1.2 mm, apex acuminate. Petals narrowly elliptic, ca. 3.5 × 1 mm; lip spreading forward, cuneate, ca. 6 × 4 mm, with a pair of triangular auricles near base, apex deeply bilobed; lobes strongly recurved and meeting underneath lip, ca. 2 × 1.3 mm. Column ca. 1.5 mm. Fl. Aug.

Dense bamboo forests, grasslands; ca. 3300 m. NW Yunnan [NE India (Sikkim)].