Habenaria fargesii Finet, Rev. Gen. Bot. 13: 528, t. 18A. 1-8. 1901.

Pandey, Tirtha Raj & Jin, Xiao-Hua, 2021, Taxonomic revision of Habenaria josephi group (sect. Diphyllae s. l.) in the Pan-Himalaya, PhytoKeys 175, pp. 109-136 : 109

3. Habenaria fargesii Finet, Rev. Gen. Bot. 13: 528, t. 18A. 1-8. 1901.

Type.

China, Sichuan, 1400 m elev., 1893, Farges 1279 [lectotype designated here: P (P00426411 image!)] .

Description.

Terrestrial herbs, 13-37 cm tall. Tubers ovoid or oblong. Stems erect or ascending, finely papillate-pubescent. Leaves 2, opposite, basal; base narrowed and amplexicaul; leaf blade spreading horizontally, adaxially yellowish-white marked, ovate or orbicular, 4-6 cm long, 3.5-6 cm broad, apex acute. Inflorescence 10-30 cm long, 4-9-flowered; rachis 5-11 cm long, finely papillate-pubescent; floral bracts lanceolate, ca. 7 mm long, apex acuminate. Flowers yellowish-green; ovary and pedicel twisted, 1.2-2 cm long, pubescent. Dorsal sepal ovate, 3-3.5 mm long, ca. 2.5 mm broad, margins ciliate, apex acute; lateral sepals strongly reflexed, obliquely ovate, 5-7 mm long, ca. 4 mm broad, margins ciliate, apex acute. Petals connivent with dorsal sepal, deeply 2-lobed; upper lobe falcate-oblong, ca. 4 mm long; lower lobe linear, ca. 10 mm long; lip deeply 3-lobed above the base, spurred; lateral lobes divaricate, filiform, ca. 1.5 cm long, apex curled; mid-lobe linear, ca. 1 cm long; spur pendulous, 2-2.5 cm long. Column short and broad, anther connective wide; pollinia granular; caudicles linear; stigmatic processes elongated. (Fig. 8 ).

Phenology.

Flowering in July to September.

Habitat.

Montane forests, grassy valleys; 1400-3000 m elev.

Distribution.

N and S Hengduan; also in Chongqing and Gansu of China (Fig. 9 ).

More illustrations.

Finet (1901, fig. 18A, 1-8).

Additional specimens examined.

N HENGDUAN: Sichuan, T.T. Li 644 (PE). S HENGDUAN: Yanyuan, 3000 m elev., 2015, FLPH Sichuan Expedition 152179 (PE).

Figures

Figure 8. Habenaria fargesii A habit B floral bract C pedicellate ovary with spur D petal E dorsal sepal F lateral sepal G lip (A photographed from FLPH Sichuan Expedition 152179, PE B-G drawn from the same specimen by T. R. Pandey).

Figure 9. Distribution of Habenaria fargesii (black circles) in the Pan-Himalaya.