Herminium mackinnonii Duthie, Journ, As. Soc. Beng. Nat. His.71:44.1902.

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 : 28

31. Herminium mackinnonii Duthie, Journ, As. Soc. Beng. Nat. His.71:44.1902.

Monorchis mackinnonii (Duthie) O. Schwarz, Mitt. Thüring. Bot. Ges. 1: 95.1949.

Type.

INDIA. Lehari-Garhwal , near Mussoorie, 6000 ft, 30.08.1901, Mackinnon P. W., 25421 (Holotype: K! [K000079024]; Isotype: AMES! [AMES00100258]) .

Description.

Plant 15-30 cm tall. Tuber oblong, 7-1.5 × 5-12 mm. Stem with tubular sheaths and 2 basal, subopposite leaves. Leaves linear-lanceolate, 10-16 × 1-1.5 cm, acute to acuminate. Inflorescence 10-20 cm, cylindrical, with or without peduncle-scales, rachis 10-15 cm, subdensely many-flowered, floral bracts 5 mm, broadly lanceolate, acuminate, shorter than the ovary. Flowers subsecund, spreading, 5-10 mm across, ovary straight, slightly beaked at 6 mm. Dorsal sepals ovate-oblong, 2.5-3.5 × 1.5-2 mm, obtuse; lateral sepals obliquely ovate-oblong, 2-3 × 1.5-2 mm, acute. Petals linear-lanceolate, 3 × 1 mm, apex acute. Lip deflexed, 3-lobed above middle, basal part concave, dilated and with a small concavity atthe base, lateral lobes linear, apex acute, midlobe lanceolate, apex obtuse. Column 1 mm, anther cells parallel, pollinia ovate ellipsoid, caudicles very short, viscidium discoid, rostellum triangular armed, stigma 2, transversely oblong, lying beneath the rostellum.

Flowering time.

July-August.

Habitat.

Terrestrial or epiphytic on trunk or large branches of oak trees at elevations of 2400-2700 m.

Distribution.

India, Nepal.

Specimens examined.

NEPAL: Koshi, Bhuje Danda to Tamur River , 2700 m, 03.08.1989, Grey-Wilsonet al., 135 (KATH) ; Mechi, Ilam District, Hille-Chintapu , 2450 m, 07.10.1977, Pradhan P., Rajbhandari K. R. and Niraula R., 289 (KATH) .