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

17. Gastrochilus distichus (Lindley) Kuntze, Revis. Gen. Pl. 2: 661. 1891.

列叶盆距兰 lie ye pen ju lan

Saccolabium distichum Lindley, J. Proc. Linn. Soc., Bot. 3: 36. 1858.

Stems pendulous, usually 1.5-20 cm, ca. 2 mm in diam., slender, often branched. Leaves many, distichous; blade lanceolate or falcate-lanceolate, 1.5-3 × 0.4-0.6 cm, apex acute and with 2 or 3 awns. Inflorescences several, opposite to leaves, subumbellate, 2-4-flowered; peduncle 1-3 cm, slender, upper part enlarged, lower part with 2 cupular sheaths; floral bracts ovate-lanceolate, 1-2 mm; pedicel and ovary ca. 8 mm. Flowers pale green, with reddish brown spots. Sepals similar, usually concave, oblong-elliptic, 4.5-5 × 2.5-3 mm, apex obtuse. Petals subobovate, slightly smaller than sepals, apex obtuse; lip with an epichile and a saccate hypochile; epichile nearly suborbicular, ca. 3 × 5 mm, adaxially glabrous, with a central cushion, near base with 2 conic calli, entire, obtuse at apex; hypochile subcupular, ca. 4 mm tall, 2-3 mm in diam., apex rounded. Column ca. 2.5 mm; anther cap narrowed into a beak toward apex. Fl. Jan-May. 2n = 38.

On tree trunks in forests; 1100-2800 m. SE Xizang, W Yunnan [Bhutan, NE India, Nepal].


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