Cyrtosia nana (Rolfe ex Downie) Garay, Bot. Mus. Leafl. 30: 233. 1986.矮小肉果兰 ai xiao rou guo lan

Galeola nana Rolfe ex Downie, Bull. Misc. Inform. Kew 1925: 409. 1925.

Plants small, ± fleshy. Rhizome short, stout. Tuberlike roots pale yellowish white, cylindric, 2.5-9 cm, 5-8 mm in diam., fleshy. Stem erect, yellowish white, slightly tinged with red, 10-22 cm tall, glabrous or apical half with sparse rust-colored, mealy, short hairs, nodes with lanceolate scales; internodes usually 1-3 cm. Inflorescence terminal and lateral, sometimes lateral inflorescence very short or inconspicuous; terminal raceme 6-11-flowered; rachis rusty mealy-puberulent; floral bracts ovate-lanceolate, 2-4 mm, abaxially rusty puberulent; pedicel and ovary 8-10 mm, also with rust-colored hairs. Flowers pale yellow, lip with orange-red longitudinal stripes. Sepals elliptic, 1-1.2 × ca. 0.6 cm, abaxially rusty mealy-puberulent, apex acute. Petals similar to sepals, slightly narrower, glabrous; lip ± embracing column, broadly ovate, ca. 1 × 1.2 cm, margin somewhat undulate, disk with a thick longitudinal ridge centrally, adaxially white pilose near apex. Column ca. 6 mm, apex slightly dilated, without conspicuous wing. Fl. Apr-Jun. 2n = 28.

Forests or shaded places along valleys; 500-1400 m. S Guangxi, SW Guizhou [Thailand, N Vietnam].