Herminium biporosum Maxim., Bull. Acad. Imp. Sci. Saint-Petersbourg , ser . 3, 31: 106. 1886.

Raskoti, Bhakta Bahadur, Schuiteman, Andre, Jin, Wei-Tao & Jin, Xiao-Hua, 2017, A taxonomic revision of Herminium L. (Orchidoideae, Orchidaceae), PhytoKeys 79, pp. 1-74 : 9-11

5. Herminium biporosum Maxim., Bull. Acad. Imp. Sci. Saint-Petersbourg, ser. 3, 31: 106. 1886. Figs 6R , 7R , 8R , 9R

Porolabium biporosum (Maxim.) Tang & F. T. Wang, Bull. Fan Mem. Inst. Biol. Bot. 10: 38. 1940.

Monorchis biporosa (Maxim.) O. Schwarz, Mitt. Thüring. Bot. Ges. 1: 95. 1949.

Type.

CHINA. Qinghai, near Lake Khuku-nor , 1880, Przewalski, Spec. 1 (Holotype: LE!) .

Description.

Plant 5-12 cm tall. Tubers globose, 6 × 4 mm. Stem slender, with 2 or 3 tubular sheaths and 1 leaf. Leaf oblong-lanceolate, 1-3.5 × 0.4-0.6 cm, apex obtuse. Inflorescence 2-10 cm, peduncle cylindrical without peduncle-scales, rachis 1-4 cm with 4-8-flowered; floral bracts scale like, ca. 1 mm. Flowers yellowish green; ovary twisted, fusiform, including pedicel 5-6 mm. Dorsal sepal forming a hood with petals, orbicular, 2.5 × 1.5 mm, apex obtuse; lateral sepals obliquely oblong-lanceolate, 3 × 1.5 mm, apex obtuse. Petals ovate, oblique, 2 × 1mm. Lip deflexed, 1.5-2.8 × 1.5 mm, base dilated and with 2 sharply delimited pits, attenuate toward apex. Column 0.7 mm, with 2 lateral appendages at base of anther; anther cucullate, large, 2-locular; pollinia 2, each attached to a viscidium by a short caudicle; rostellum triangular, with spreading lateral lobes; stigma cushion situated below the rostellum. Fruit fusiform, 5 mm long.

Flowering time.

July.

Habitat.

Terrestrial on grasslands slopes at elevations of 3000-3600 m.

Distribution.

China (Qinghai, Shanxi, Yunnan).

Specimen examined.

CHINA: Yunnan, Fugong county, 3600 m, 17.07.2013, Jin X.H., Wang L.S.,Wang Q et al., ST0437 (PE).

Figures

Figure 6. 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.

Figure 7. Lateral 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. gracile L H. elisabethae M H. himalayanum N H. clavigerum O H. quinquelobum P H. macrophyllum Q H. lanceum R H. biporosum.

Figure 8. Petal of Herminium. A H. monorchis B H. chloranthum C H. pygmaeum D H. josephi E H. monophyllum F H. lanceum G H. josephi H H. coiloglossum I H. coeloceras J H. fallax K H. himalayanum L H. elisabethae M H. alaschanicum N H. ophioglossoides O H. quinquelobum P H. macrophyllum Q H. ecalcaratum R H. biporosum

Figure 9. Lip of Herminium. A H. monorchis B H. chloranthum C H. pygmaeum D H. josephi E H. monophyllum F H. macrophyllum G H. macrophyllum H H. alaschanicum I H. coeloceras J H. fallax K H. longilobatum L H. elisabethae M H. alaschanicum N H. lanceum O H. quinquelobum P H. kamengense Q H. coiloglossum R H. biporosum.