PlantaeAsparagalesOrchidaceaeRaskotiBhakta BahadurSchuitemanAndréJinWei-TaoJinXiao-HuaA taxonomic revision of Herminium L. (Orchidoideae, Orchidaceae)PhytoKeys194201720177917410.3897/phytokeys.79.11215 Herminium mannii (Rchb.f.) Tang & F.T. Wang, Bull. Fan Mem. Inst. Biol. 7: 128. 1936.Figs 6Q, 10H Habenaria gracillimaHook.f., Fl. Brit. India 6: 163. 1890. Type: INDIA. Khasia Hills, Munnipore, 4000–5000 ft, Clarke C. B. s.n. (not found). Peristylus gracillimus(Hook.f.) Kraenzl., Orchid. Gen. Sp. 1: 513. 1898. Habenaria duclouxiiRolfe, Notes Roy. Bot. Gard. Edinburgh 8: 25. 1913. Type: CHINA. Yunnan, Ducloux F., 226 (Lectotype, here chosen: K! [K000827046W]). Syntype: Yunnan, western slopes of the Tsan-Shan Range near head of Yang-pi pass, 9.1905, Forrest G., 906 (Syntype: E! [E00381984]). Habenaria spiranthiformisAmes & Schltr., Repert. Spec. Nov. Regni Veg. Beih.4: 52. 1919. Type: CHINA. Yunnan, Maire E. E., 2616 (Holotype: AMES! [AMES00100097]). Platanthera mannii(Rchb.f.) Schltr., Repert. Spec. Nov. Regni Veg. Beih. 4: 114. 1919. Herminium yuanumTang & F.T. Wang, Bull. Fan Mem. Inst. Biol. 7: 129. 1936. Type: CHINA. Sichuan, Li county, 2900 m, 17.09.1932, Yu T. T., 1543 (Holotype: PE! [PE00027291]). Herminium spiranthiforme(Ames & Schltr.) Tang & F.T. Wang, Acta Phytotax. Sin.1: 62. 1951. Peristylus mannii(Rchb. f.) Mukherjee, Notes Roy. Bot. Gard. Edinburgh 21(3): 153. 1953.Basionym.

Coeloglossum mannii Rchb.f., Linnaea 41: 54. 1876.

Type.

INDIA. Assam, Khasia Hills, 5000 ft; Mann s.n. (Holotype: W).

Description.

Plant 10–43 cm tall. Tubers oblong, 1–2.5 × 0.5–1 cm. Stem with 2–4 leaves and 2 tubular sheaths at base. Leaves linear, 3–14 × 0.2–0.4 cm, apex acuminate. Inflorescence 10–37 cm; peduncle cylindrical, peduncle-scales 1–5, lanceolate, 2–20 mm; rachis 4–16 cm, laxly many-flowered; floral bracts ovate-lanceolate, 2–4 mm, shorter than ovary, apex acuminate. Flowers pale yellowish green; ca. 3 mm across, pedicel and ovary 2–5 mm. Dorsal sepal ovate, concave, 2–2.5 × 0.8–1 mm, apex obtuse; lateral sepals oblong-lingulate, 2–2.5 × 0.8–1 mm, apex obtuse. Petals hooded with dorsal sepals, obliquely ovate-lanceolate, 2–2.5 × ca. 0.8 mm, apex obtuse. Lip oblong-ovate, 2.5–3 × 0.8–1 mm, base deeply concave, ecallose, 3-lobed near middle; lateral lobes oblong, 0.8–1.5 mm; mid-lobe oblong, slightly attenuate, 1–2 mm, spur pendulous, scrotiform, 1–1.5 mm, apex obtuse. Column 0.3–0.5 mm; pollinia globose, caudicles short, viscidia ellipsoid, rostellum triangular, shortly armed, stigma transversely oblong-clavate, extended outwards at base of lip.

Flowering time.

August–October.

Habitat.

Terrestrial in forest margins and on grassy slopes at elevations of 1700–3400 m.

Distribution.

China, India, Myanmar, Nepal.

Specimens examined.

CHINA: Sichuan, Danba county, 3000 m, 06.08.1940, Qu G.L.,7539A (PE); Jinchuan county, 3100 m, 15.06.1958, Li X., 77748 (PE); Luding county, 1300 m, 12.07.1982, Lang K.Y., Li L.Q., Fei Y., 624 (PE); Mianning, 1800 m, 30.09.1938, Yu T. T., 17814 (PE); Mianning, 2000 m, 25.07.1959, Wang Z.B., 2168 (PE); Muli, 2300 m, 18.07.1937, Yu T.T., 7319 (PE); Yajiang county, 3080 m, 30.07.1960, Guan Z.T., 41–0728 (PE); Yunnan, Gongshan county, 3337 m, 11.09.2005, Jin X. H.,7983 (PE); Songming County (Sung-Ming KuoTung), 2200 m, 10.10.1950, Mao P.I., 161 (PE); mid-W Yunnan, 1520 m, 09.1924, Forrest G., 25104 (K); Wenshan county, Bozhushan, Xiaoheijing, 2400 m, 31.07.1993, Shui Y. M., 003196 (PE).

INDIA: Assam, Khasi Hills, Mawphlang, 1800 m, 31.07.1954, Chand T. R., 7890 (K); Meghalaya, 11.09.1984, Naithani, H. B., 1175 (DD); Nagaland, Kegurma Edge, 2100 m, 10.11.1885, Clarke C. B., 61858 (K).

NEPAL: Koshi, Taplejung, Guphapokhari at 2900 m, 29.08.2007, Raskoti B. B., 250 (TUCH).

Dorsal sepal of Herminium. A H. monorchis B H. chloranthum C H. pygmaeum D H. josephi E H. monophyllum F H. lanceum G H. macrophyllum H H. glossophyllum I H. coeloceras J H. fallax K H. handelii L H. elisabethae M H. himalayanum N H. clavigerum O H. quinquelobum P H. macrophyllum Q H. mannii R H. biporosum.

Column structure in Herminium. A H. monorchis B H. josephi C H. latilabre D H. monophyllum E H. kamengense F H. longilobatum F H. himalayanum H H. mannii I H. fallax.