PlantaeAsparagalesOrchidaceaeRaskotiBhakta BahadurSchuitemanAndréJinWei-TaoJinXiao-HuaA taxonomic revision of Herminium L. (Orchidoideae, Orchidaceae)PhytoKeys194201720177917410.3897/phytokeys.79.11215 Herminium yunnanense Rolfe, Notes Roy. Bot. Gard. Edinburgh 8: 24. 1913. Monorchis yunnanensis(Rolfe) O. Schwarz, Mitt. Thüring. Bot. Ges. 1: 96. 1949.Type.

CHINA. Yunnan, Tsan-Shan Range, near Yang Bi Pass, Forrest G., 907 (Holotype: E! [E00188161]).

Description.

Plant 15–27 cm tall. Tubers ovoid-oblong, 5–20 × 4–8 mm. Stem with 2 tubular sheaths and 1 leaf at base. Leaf linear-oblong, 8–14 × 0.5–1 cm, apex acute. Inflorescence 14–22 cm; peduncle cylindrical, with few lanceolate peduncle-scales; rachis 5–9 cm, densely many-flowered; floral bracts ovate, 3–5 mm, shorter than ovary, apex acuminate. Flowers yellowish green; pedicel and ovary, twisted, beaked at apex, 3–6 mm. Dorsal sepal broadly ovate, concave, 1.5–2 × 1–1.6 mm, apex obtuse; lateral sepals ovate, slightly oblique, 1.5–2.3 × 1–1.5 mm, apex obtuse. Petals hooded with dorsal sepal, concave, ovate, 1–1.5 × 1–1.3 mm, apex subacute. Lip oblong, 2–2.5 × 1–2 mm, concave, apex 3-lobed; lateral lobes triangular, 0.5 × 0.3 mm, apex acute; mid-lobe triangular, 0.7 × 0.7 mm, apex obtuse. Column ca. 1 mm; pollinia globose; caudicles short, viscidia ovoid; rostellum clavate, stigma transversely oblong, situated below the rostellum. Fruit oblong, 5–7 mm long.

Flowering time.

August–September.

Habitat.

Terrestrial on grassy slopes at elevations of 2200–3300 m.

Distribution.

China (Yunnan).

Specimens examined.

CHINA: Yunnan, Fugong county, 19.07.2013, Jin X. H, Wang L. S., Wang Q. et al. ST0599 (PE); Chuxiong city, 2200 m, 23.09.1939, Li M. K.,0170 (PE); Yangbi county, 2673 m, 24.07.2006, Jin X. H., 8273 (PE).