长瓣角盘兰 chang ban jiao pan lan

Monorchis ophioglossoides (Schlechter) O. Schwarz.

Plants 6-26 cm tall. Tubers ellipsoid or ovoid, 10-20 × 5-12 mm. Stem with 2 or 3 tubular sheaths at base, 1-leaved. Leaf basal, arising from within basal sheaths, elliptic-ligulate, 2-9 × 0.5-2.5 cm, apex acute or obtuse. Inflorescence 5-20 cm; peduncle cylindric, ebracteate or with 1 occasionally foliaceous sterile bract 0.5-3 cm; rachis 1-12.5 cm, laxly to subdensely many flowered; floral bracts lanceolate, 2.5-5 mm, much shorter than to almost as long as ovary, apex acuminate. Flowers nodding, yellowish green; ovary distinctly hooked toward apex, 4-7 mm including pedicel. Dorsal sepal erect, suberect, oblong-lanceolate, 3.5-5 × ca. 2 mm, 1-veined, apex obtuse; lateral sepals oblong-lanceolate, 3.5-5 × ca. 2 mm, 1-veined, apex obtuse. Petals narrowly ovate, 5-7 × 0.6-1.4 mm, somewhat fleshy, 2-veined, apex obtuse; lip decurved or spreading, oblong-ovate, 6-7 × 1.5-2.4 mm, base concave, furcately 3-lobed below middle; lateral lobes linear, 3-4 mm; mid-lobe linear, 4-5 mm, slightly broader than lateral lobes, apex acute. Column ca. 1 mm; pollinia globose; viscidia involute, hornlike. Fl. Jun-Jul.

● Grassy slopes; 2100-3500 m. SW and W Sichuan, C and NW Yunnan.