云南独蒜兰 yun nan du suan lan

Coelogyne yunnanensis Rolfe, J. Linn. Soc., Bot. 36: 23. 1903; Pleione chiwuana Tang & F. T. Wang; P. yunnanensis var. chiwuana (Tang & F. T. Wang) G. Kleinhans ex Torelli & Riccaboni.

Herbs, terrestrial or lithophytic. Pseudobulb green, ovoid, narrowly ovoid, or conic, 1.5-3 × 1-2 cm in diam., 1-leaved. Leaf very immature or undeveloped at anthesis, lanceolate to narrowly elliptic, 6.5-25 × 1-3.5 cm, papery, base attenuate into a petiole-like stalk 1-6 cm, apex acuminate or subacute. Inflorescence erect; peduncle 10-20 cm, with several sheaths below middle; floral bracts obovate to obovate-oblong, 20-30 × 5-8 mm, shorter than ovary, apex obtuse. Flowers solitary or rarely 2, purplish, pink, or sometimes white, with purple or deep red spots on lip; pedicel and ovary 30-45 mm, usually deep red. Dorsal sepal oblong-oblanceolate, 35-40 × 6-8 mm, apex obtuse; lateral sepals oblong-lanceolate or elliptic-lanceolate, slightly oblique, 35-40 × 6-10 mm, usually slightly wider than dorsal sepal, apex obtuse. Petals oblanceolate, 35-40 × 5-7 mm, base cuneate, apex obtuse; lip broadly obovate, 30-40 × 25-30 mm, 3-lobed; lateral lobes erect and loosely embracing column, broad, apex rounded; mid-lobe subquadrate, apical margin irregularly erose-lacerate, apex emarginate; disk with 3-5 entire or slightly erose lamellae extending from base of lip to base of mid-lobe. Column ± arcuate, 18-23 mm; column wings very narrow below middle, dilated above, apex 5-6 mm tall and irregularly dentate at apex. Capsule fusiform-cylindric, 25-30 × ca. 12 mm. Fl. Apr-May, fr. Sep-Oct. 2n = 40, 120.

On mossy rocks in forests and at forest margins, shaded and rocky places on grassy slopes and under ericaceous shrubs; 1100-3500 m. N and W Guizhou, SW Sichuan, SE Xizang, NW and SE Yunnan [N Myanmar].