指甲兰 zhi jia lan

Aerides larpentae H. G. Reichenbach; A. siamensis Klinge.

Stems ± elongate, stout, with several distichous leaves. Leaf blade lorate, 20-29 × 2.5-3.7 cm. Inflorescences racemose, sparsely several flowered. Flowers 2-2.5 cm in diam., whitish, tinged or spotted with purple or purplish red. Dorsal sepal broadly ovate or suborbicular, ca. 12 × 10 mm; lateral sepals broadly ovate, base completely adnate to column foot. Petals smaller than sepals; lip movable, spurred, 3-lobed; lateral lobes falcate-oblong; mid-lobe nearly broadly ovate, ca. 12 × 18 mm, margin erose-denticulate, apex emarginate, base with a suborbicular callus near spur entrance; spur ascending, nearly parallel to mid-lobe, 3-4 mm. Column 3-4 mm, foot ca. 1 cm or more; anther cap narrowed and beaked at apex. Fl. unknown. 2n = 38.

Epiphytic on tree trunks in evergreen broad-leaved forests. SE Yunnan [Cambodia, NE India, Laos, Myanmar, Thailand, Vietnam].