小兜蕊兰 xiao dou rui lan

Herminium pusillum Ohwi & Fukuyama, Bot. Mag. (Tokyo) 48: 430. 1934; Androcorys japonensis F. Maekawa.

Plants 10-22 cm tall. Tuber ovoid or globose, 5-7 mm in diam. Stem erect, slender, with 1-3 tubular sheaths and 1 leaf at base. Leaf ovate to oblong, 2-4.5 × 1-2.2 cm, apex obtuse. Rachis ca. 2.5 cm, 8-13-flowered; floral bracts ovate, ca. 1.5 mm, shorter than ovary. Flowers green; ovary and pedicel 3-4 mm. Dorsal sepal erect, triangular-ovate, orbicular, or broadly ligulate, concave, 1-1.2 × ca. 1 mm, 1-veined, margin irregularly denticulate, apex obtuse; lateral sepals spreading, narrowly oblong, 2-3 × 0.7-1 mm, 1-veined, margin slightly denticulate, apex obtuse or subacute. Petals elliptic to obliquely orbicular, concave, 1.2-1.5 × ca. 1 mm, 1-veined, base cuneate, margin entire or slightly denticulate, apex rounded; lip ligulate, 2-2.2 × ca. 0.7 mm, fleshy, base dilated, apex obtuse; connective broad. Fl. Jul.

Forests, alpine meadows; 2500-3500 m. C Taiwan [Japan].