二脊盆距兰  转到中国兰科植物志

Gastrochilus affinis  分类来源:中国植物志

二脊盆距兰 Gastrochilus affinis(新拟) 



Attached to the trunk, 2555 meters above sea level. From ( Yunnan ) Fugong ) ( Jikedi ) Gaoligong Mountains east slope. 

 

Distribution : India, China. This species is similar to S.alternifolia, but differs from the latter by dentate margins and two ridges from base to top.

 


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Plants clustered, 3-5 cm tall, slender. Roots white and slender. The stem is surrounded by leaf sheaths.

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Leaves several, two-rowed, fleshy, narrowly oblong, with purple spots, apex acute and with 2 or 3 small teeth, 1. 5 cm long, 0. 5 cm wide.

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Inflorescences subterminal, raceme, with 2-3 flowers. Peduncle sheath, 1-1.5 cm long. Sheath broadly triangular, ca. 1.2 mm long. Bracts ovate triangular, 1 mm long. Flowers ca. 6 mm wide. Sepals, petals and upper lip greenish brown ; lower lip yellow ; pedicel and ovary 0.5 cm long, slender. Sepals elliptic, depressed, apex slightly obtuse, 3. 5 mm long, 1 mm wide ; lateral sepals spreading, elliptic, apex slightly obtuse, ca. 3.5 mm long, 1 mm wide. Petals spreading, elliptic, apex slightly obtuse, 3. 5 mm long, 1 mm wide. 3 cleft lip ; lower lip cystic, 3.5 cm long, 2.5 cm wide. Lateral lobe stenosis. Middle lobe is triangular, slightly pointed, slightly curved, base margin dentate, with two ridges extending from base to apex. Capsule conical, erect, apex slightly 2 - lobed. Stamen column thick, 2mm long.

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