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

2. Pteroceras asperatum (Schlechter) P. F. Hunt, Kew Bull. 24: 96. 1970.

毛葶长足兰 mao ting chang zu lan

Sarcochilus asperatus Schlechter, Repert. Spec. Nov. Regni Veg. Beih. 4: 75. 1919.

Stems inconspicuous, usually 2- or 3-leaved. Leaf blade obliquely oblong or oblong-ligulate, 13-23 × 3-4.5 cm, obtuse and unequally bilobed. Inflorescence suberect, 5-14 cm, laxly few to many flowered; peduncle and rachis densely black hispidulous; floral bracts ovate-triangular, small, abaxially black hispidulous. Flowers white; pedicel and ovary ca. 8 mm, slender, black hispidulous. Sepals suboblong, ca. 6 × 4 mm, abaxially black hispidulous, apex obtuse; lateral sepals oblique, obtuse. Petals oblong, ca. 6 × 3 mm, obtuse; lip movable, 3-lobed; lateral lobes erect, oblong, ca. 3 mm, distal margin with a small tooth, apex obtuse; mid-lobe nearly reniform, ca. 1 × 2 mm, thickly fleshy, adaxially with a high lamella, apex obtuse; spur cylindric, ca. 2 mm, obtuse. Column ca. 3 mm, foot ca. 3.5 mm; stipe lorate; viscidium subquadrate, apex with irregular teeth. Fl. unknown.

● Epiphytic on tree trunks in evergreen broad-leaved forests; ca. 1500 m. S Yunnan.


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