黄花小红门兰 huang hua xiao hong men lan

Habenaria chrysea W. W. Smith, Notes Roy. Bot. Gard. Edinburgh 13: 204. 1921; Chusua chrysea (W. W. Smith) P. F. Hunt; Orchis chrysea (W. W. Smith) Schlechter.

Plants 4-10 cm tall. Tubers subglobose, 5-10 mm in diam. Stem 1-3 cm, with 1 or 2 tubular sheaths at base, 2-leaved. Leaves basal, subopposite, green, lacking purple spots, oblong to narrowly elliptic, 2-6.5 × 0.6-1.5 cm, glabrous, apex acuminate or subobtuse. Inflorescence erect, 1-3 cm, 1-flowered, glabrous; floral bract foliaceous, sheathing, oblanceolate, 18-45 mm, base contracted, apex acute to acuminate. Flower fragrant, creamy white or yellow, medium-sized; pedicel 10-15 mm; ovary fusiform, ca. 10 mm, glabrous. Dorsal sepal erect, oblong-lanceolate, concave, 9-15 × 3.5-4.5 mm, 1-veined, apex acuminate; lateral sepals falcate-lanceolate, oblique, 9-16 × ca. 3 mm, 1-veined, apex acuminate. Petals erect, forming a loose hood with dorsal sepal, broadly ovate, oblique, 8.5-15 × 4.5-7 mm, glabrous, 3-veined, apex obtuse; lip spreading, broadly ovate-triangular, slightly concave, simple to obscurely 3-lobed, ca. 12 × 8-12 mm, slightly fleshy, thickened along midvein, spurred, margin slightly crenulate; spur pendulous, cylindric, 12-25 mm, slightly narrowed toward acuminate apex. Fl. Aug-Sep.

Mossy rocks in forests, grassy slopes; 3400-4200 m. S and SW Xizang, NW Yunnan [Bhutan].