尾萼卷瓣兰 wei e juan ban lan

Cirrhopetalum caudatum (Lindley) King & Pantling.

Rhizome slender, 1-2 mm in diam., branched, rooting from their nodes. Pseudobulbs 2-8 cm apart from each other, ovoid, 1-2.5 cm, 6-10 mm in diam., with a terminal leaf. Petiole short, 2-3 mm; leaf blade ovate-lanceolate or sometimes oblong, 2.5-6.5 × 1-1.5 cm, leathery, apex acute or obtuse. Scape from base of pseudobulb, erect, usually 1-3 cm; umbel flabellate, many flowered; floral bracts lanceolate, nearly as long as pedicel and ovary. Flowers white. Dorsal sepal ovate-oblong, ca. 5 × 2.5 mm, apex acuminate; lateral sepals free, parallel to each other or slightly divergent, lanceolate, 25-35 mm, apex long caudate. Petals obovate-oblong, short, apex obtuse; lip oblong, ca. as long as petals, clawed at base, basal margins erect, distal margins decurved. Column stout, with nearly suborbicular wings; stelidia slender; anther cap papillate. Fl. unknown. 2n = 38.

Tree trunks in evergreen broad-leaved forests; 800-1000 m. SE Xizang [India (Sikkim), Nepal].