注：名称已修订，正名是：大花兜被兰 Ponerorchis camptoceras

Neottianthe camptoceras (Rolfe) Schlechter, Repert. Spec. Nov. Regni Veg. 16: 292. 1919. 大花兜被兰 da hua dou bei lan Habenaria camptoceras Rolfe, J. Linn. Soc., Bot. 29: 319. 1892; Amitostigma potaninii K. V. Ivanova; A. potaninii f. macranthum K. V. Ivanova; Galearis constricta (L. O. Williams) P. F. Hunt; Galeorchis constricta (L. O. Williams) Soó; Gymnadenia camptoceras (Rolfe) Schlechter; Orchis constricta L. O. Williams. 

 Plants 4.5–10 cm tall. Tubers subglobose, ca. 10 mm. Stem erect, 2-leaved. Leaves basal, subopposite, elliptic to ovate-lanceolate, 2.5–3 × 0.5–1 cm, apex acute. Rachis 1- or rarely 2-flowered; floral bract lanceolate, slightly shorter than ovary, apex acuminate. Flower deep purple, large; ovary and pedicel 12–13 mm. Sepals connivent and forming hood; hood ca. 9 × 8 mm; dorsal sepal narrowly oblong-ovate, concave, ca. 8 × 2.2 mm, 3-veined, apex obtuse; lateral sepals lanceolatefalcate, oblique, ca. 9 × 4 mm, 3-veined, apex obtuse. Petals appressed to dorsal sepal, linear-lanceolate, ca. 7.5 × 1.2 mm, 1- or 2-veined, apex obtuse; lip spreading, broadly oblong-ovate, 12–13 × 12–13 mm, 3-lobed near base; disk with a few white spots; lateral lobes oblong-ligulate, ca. 5 × 2 mm, apex obtuse; mid-lobe ovate-rhombic, ca. 10 × 8 mm, apex rounded-obtuse; spur pendulous, curved forward or hooked near apex, cylindric, dilated toward apex, 15–20 mm, conspicuously longer than ovary, apex obtuse. Fl. May–Jun.

 ● Forests, grassy slopes; 2700–3100 m. SW and W Sichuan.