16. Amitostigma gonggashanicum K. Y. Lang, Acta Phytotax. Sin. 22: 312. 1984.
贡嗄无柱兰 gong sha wu zhu lan
Plants 16-30 cm tall. Tubers ovoid to globose, 10-15 × ca. 10 mm. Stem with 2 tubular sheaths at base, 1-leaved. Leaf cauline, erect, narrowly oblong-elliptic, 5.5-8 × 0.6-1.6 cm, apex acute. Peduncle ebracteate; rachis 2.5-5 cm, subdensely 3-14-flowered; floral bracts lanceolate or ovate-lanceolate, shorter than ovary, apex acute. Flowers purplish red, 1-2 cm in diam., lip white; ovary and pedicel 15-20(-25) mm. Dorsal sepal erect, oblong-ovate, ca. 7 × 3.5 mm, 3-veined, apex obtuse; lateral sepals spreading, oblong-ovate, slightly oblique, ca. 7.2 × 3.5 mm, 3-veined, apex obtuse. Petals connivent with dorsal sepal and forming a hood, ovate, ca. 6 × 4 mm, 3(-5)-veined, apex obtuse; lip broadly ovate, ca. 13 × 13 mm, with a dense cluster of hairs near base, deeply 3-lobed near base; lateral lobes obovate, ca. 4 × 4 mm, margin undulate, apex obtuse; mid-lobe broadly obovate, ca. 7 × 6 mm, margin undulate, deeply notched toward apex to form 2 distinct lobules, sinus with a small obtuse tooth; spur pendulous, cylindric-conic, ca. 4 mm, apex obtuse; viscidia ovate; stigma lobes elliptic. Fl. Jun-Jul.
● Forests; 2400-3800 m. SW Sichuan.