深裂沼兰 shen lie zhao lan

Microstylis purpurea Lindley, Gen. Sp. Orchid. Pl. 20. 1830; Malaxis liparioides (Schlechter) Tang & F. T. Wang; M. purpurea (Lindley) Kuntze; Microstylis liparioides Schlechter; M. wallichii Lindley var. biloba King & Pantling.

Plants terrestrial. Stem cylindric, 2-4(-15) cm, 5-7 mm in diam., fleshy, with several nodes, ± enclosed in sheaths. Leaves often 3 or 4, obliquely ovate or oblong, 8-16.5 × 3-5.8 cm, base contracted into a sheathlike, amplexicaul petiole 3-4 cm, apex acuminate or caudate-acuminate. Inflorescence erect; peduncle 15-25 cm, nearly wingless; rachis 7-15 cm, 10-30- or more flowered; floral bracts lanceolate, 3-5 mm. Flowers red or occasionally pale yellow, 8-10 mm in diam.; pedicel and ovary 6-12 mm. Dorsal sepal suboblong, 4.5-6 × ca. 1.5 mm, apex obtuse; lateral sepals broadly oblong or broadly ovate-oblong, 3-4.5 × 2-2.5 mm, apex obtuse or acute. Petals narrowly linear, 4-5.5 × 0.6-0.9 mm; lip superior, subovoid-rectangular in outline, 6-8 mm, abruptly contracted near middle and ± shoulderlike, base with a central depression, apex deeply 2-lobed, sinus 1.5-2.5 mm deep; auricles ovate or ovate-lanceolate, 2.5-3 mm, decurrent backward embracing column. Column ca. 1 mm, stout. Fl. Jun-Jul.

Forests, humid places in thickets; 400-1800 m. S Guangxi, W Sichuan, Taiwan, S and SW Yunnan [NE India, Philippines, Sri Lanka, Thailand, Vietnam].