齿缘小红门兰 chi yuan xiao hong men lan

Orchis crenulata Schlechter, Repert. Spec. Nov. Regni Veg. 19: 373. 1924, not Gilibert (1792); Chusua crenulata (Soó) P. F. Hunt; Ponerorchis schlechteri Perner & Y. B. Luo, nom. illeg. superfl.

Plants 3.5-6 cm tall. Tubers ellipsoid, 5-10 mm. Stem 1.5-2 cm, with 1 or 2 membranous, tubular sheaths at base, 2-leaved. Leaves basal, subopposite, green, lacking purple spots, linear-oblong, 1.3-3 × 0.2-0.6 cm, glabrous, apex acute. Inflorescence erect, 1-2 cm, 1-flowered, glabrous; floral bract linear-lanceolate to linear, 7-12 mm, exceeding ovary, apex acute. Flower purplish rose, medium-sized; pedicel 8-10 mm; ovary fusiform, 6-8 mm, slender, glabrous. Dorsal sepal erect, concave, lanceolate-oblong, 6-8 × 3-3.5 mm, 3- or 5-veined, apex obtuse; lateral sepals spreading or reflexed, ovate-lanceolate, oblique, 8-9 × 4-5 mm, 3- or 5-veined, base attenuate, apex obtuse. Petals erect, obliquely ovate, 6-7 × 3-3.5 mm, glabrous, 3-veined, apex subobtuse; lip spreading, broadly ovate to suborbicular, 6-7 × 7-8 mm, base contracted and subcordate, spurred, not lobed, margin irregularly erose-crenulate, apex rounded to slightly emarginate and apiculate at center; spur pendulous, parallel to ovary, cylindric-conic, slightly curved, 8-9 mm, ca. as long as to slightly exceeding ovary, slightly dilated at mouth, apex obtuse. Fl. Jun.

● Forests on slopes, moist limestone rubble; 3400-3700 m. NW Yunnan.