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FOC | Family List | FOC Vol. 25 | Orchidaceae | Herpysma

1. Herpysma longicaulis Lindley, Gen. Sp. Orchid. Pl. 506. 1840.

爬兰 pa lan

Erythrodes bracteata (Blume) Schlechter; Herpysma bracteata (Blume) J. J. Smith; H. sumatrana Carr; Physurus bracteatus Blume.

Plants 18-30 cm tall. Stem stout, 5-8 mm in diam. Leaves several to many, elliptic-oblong to ovate-lanceolate, 5-10 × 2.8-3.5 cm, apex acute or acuminate; petiole-like base attenuate, 2-3 cm. Inflorescence 3-4 cm, many flowered; floral bracts oblong-lanceolate, 1.5-2 cm, longer than ovary, abaxially pubescent, apex acuminate. Flowers white; sepals and petals sometimes orange or pink above middle; ovary 1.2-1.5 cm including pedicel. Dorsal sepal ovate, cymbiform, 8-9 × 4-4.5 mm, apex acute and recurved; lateral sepals spreading, narrowly oblong, concave, 10-11 × 2-2.5 mm, apex obtuse. Petals narrowly rhombic-obovate, 9-10 × 4.5-4.7 mm, thinly textured, apex obtuse; lip reflexed above middle, slightly shorter than sepals, base with 2 crenate, erect lateral lobes, apex obtusely mucronate; spur pendulous, parallel to ovary, 7-10 mm. Fl. Aug-Sep.

Dense forests; ca. 1200 m. W Yunnan [Bhutan, NE India, Indonesia, Myanmar, Nepal, Thailand, Vietnam].


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