Herminium latilabre (Lindl.) X.H. Jin, Schuit., Raskoti & L.Q. Huang, Cladistics 2015.

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 : 26

29. Herminium latilabre (Lindl.) X.H. Jin, Schuit., Raskoti & L.Q. Huang, Cladistics 2015. Figs 5B , 10C , 11H , 14

Platanthera acuminata Lindl., Gen. Sp. Orchid. Pl. 289. 1835. Syntypes: NEPAL, Wallich N, 7040A (Syntype: K-LINDL; Isosyntype: K); INDIA, Kumaon, Wallich N. (leg. Blinkworth), 7040B (Syntype: K-LINDL; Isosyntype: K).

Habenaria cumminsiana King & Pantl., J. Asiat. Soc. Bengal, Pt. 2, Nat. Hist. 64: 343. 1895. Syntypes: INDIA, Sikkim, Gantong, Cummins s.n. (not seen); same locality, 3650 m, 08.1894, Pantling R., 329 (Holotype: CAL, n.v.; Isotype K! [K000974255]).

Habenaria bonatiana Schltr., Repert. Spec. Nov. Regni Veg. 12: 104.1913. Type: CHINA. Yunnan, Maire E. E., 7558 (Holotype: B, lost; Isotype: AMES! [AMES00099726]).

Platanthera cumminsiana (King & Pantl.) Renz, Edinburgh J. Bot. 58: 117. 2001.

Platantheroides latilabris (Lindl.) Szlach., Richardiana 4: 107. 2004.

Platantheroides cumminsiana (King & Pantl.) Szlach., Richardiana 4: 106. 2004.

Habenella latilabris (Lindl.) Szlach. & Kras-Lap., Richardiana 6: 36. 2006.

Habenella cumminsiana (King & Pantl.) Szlach. & Kras-Lap., Richardiana 6: 35. 2006.

Basionym.

Platanthera latilabris Lindl., Gen. Sp. Orchid. Pl. 289. 1835.

Type.

INDIA. North, Wallich N (leg. Blinkworth), 7040 p.p. (Holotype: K-LINDL!, Isotype: K! [K000974253]) .

Description.

Plant 15-68 cm tall. Tuber ellipsoid, 1-2.5 cm. Stem with 2 or 3 tubular sheaths at base and 3-4 leaves. Leaves spirally arranged, well-spaced, ovate, 5-12 × 2-5 cm, apex acuminate. Inflorescence 11-28 cm, peduncle cylindrical with 1-4 peduncle scales; rachis 4-30 cm, laxly many flowered; floral bracts lanceolate, apex acuminate, equal or longer than ovary, 1-2 cm. Flowers yellowish green; ovary and pedicel cylindrical-fusiform, arcuate, and beaked, 1-1.5 mm. Dorsal sepal connivent with petals, broadly ovate, cymbiform, 4-7 × 3-5 mm, margin ciliate, apex obtuse; lateral sepals refluxed, oblong-ovate, oblique, 5-8 × 3-4 mm, margin ciliate, apex obtuse. Petals oblong, oblique, 4-7 × 3-5 mm, apex subacute. Lip oblong-lingulate, 6-13 × 1-1.5 mm, entire, apex obtuse; disk with a conic callus in front of mouth of spur; spur cylindrical, 8-18 mm, longer than ovary. Column 0.5 mm; staminodes subsquare; anther locules nearly parallel; pollinia obovoid, with very short caudicles and orbicular viscidia; rostellum triangular; stigma lobes separate, raised, oblong to narrowly oblong, parallel, spreading on either side of base of lip. Fruit fusiform, 1-1.5 mm long.

Flowering time.

July-August.

Habitat.

Terrestrial inforest margins and grasslands at elevations of 1600-3650 m.

Distribution.

Bhutan, China, India, Myanmar, Nepal, Pakistan.

Specimens examined.

CHINA: Sichuan, Huei-li Hsien, 2900 m, 16.09.1932, Yu T. T., 1499 (PE); Muli county , 2400 m, 01.10.1983, Qinghai-Tibet Team, 14888 (PE) ; Yunnan, Gongshan county, 2662 m, 02.08.2007, Jin X. H.,9135 (PE); Lijiang, near Yulongshan, 2900 m, 05.08.1981, Beijing Hengduan Mountain Team , 2692 (PE); Wenshan county , 14.08.1985, Ji Z.H, Song S. Y., Wang Z. T., 428 (PE) .

INDIA: Sikkim, Lachen Valley , 3050 m, 07.1897, Pantling R., 331A (K); Singalila, 3650 m, 07.1896, Pantling R., 331B (K) .

NEPAL: Bagamati, Rasuwa District, Sherpagaun , 2700 m, 06.09.1971, Dobremez J. F., 974 (KATH) ; Dhaulagiri, Mustang District, Kalopani , 2600 m, 14.08.1975, Joshi D. P. and Bhattacharya T. K., 75/3270 (KATH) ; Karnali, Mugu District, Rara , 3640 m, 08.1963, Itoh K., and Rajbhandary S., 1215 (KATH) .

Figures

Figure 5. Flowers of representive species of Herminium. A H. monorchis B H. latilabre C H. forceps D H. fallax E H. lanceum F H. edgeworthii G H. monophyllum H H. quinquelobum I H. pugioniforme.

Figure 10. 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.

Figure 11. Pollinia structure in Herminium. A H. josephi B H. macrophyllum C H. pygmaeum D H. handelii E H. lanceum F H. fallax G H. forceps H H. latilabre I H. coeloceras.

Figure 14. Herminium latilabre. A Flowering plant B Flower (front view) C Flower (side view) D Ovary with lip and spur (side view) E Dorsal sepal F Lateral sepal and petal G Lip H Floral bract I Pollinia.