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

2. Vanda coerulea Griffith ex Lindley, Edwards’s Bot. Reg. 33: ad t. 30. 1847.

大花万代兰 da hua wan dai lan

Stems 5-23 cm, 0.8-1.5 cm in diam. Leaf blade (7-)14-18 × 1.3-2(-3) cm, thickly leathery, apex unequally 2-lobed. Inflorescences 1-3, 20-42 cm, sparsely (4-)6-14-flowered; peduncle 16-22 cm; rachis weakly zigzag, 9-28 cm; floral bracts broadly ovate, 8-11 × 5-9 mm, apex obtuse-acute. Flowers thinly textured, widely opening, 6-9 cm in diam.; pedicel and ovary white, tinged blue, 45-60 mm; sepals and petals sky-blue, tessellated. Sepals similar, broadly obovate, 35-50 × 17-35 mm, base contracted into short claw, apex rounded. Petals elliptic-obovate, 30-45 × 18-25 mm, base contracted into a short claw, apex rounded; lip sky-blue, shorter than sepals, fleshy, spurred; lateral lobes erect, narrowly falcate, adaxially white with yellow spots, 3.5-5 × 1-2 mm, apex subacuminate; mid-lobe deep blue, ligulate, 17-25 × 5-8 mm, base with a pair of calli, apex subtruncate and emarginate; disk with 3 longitudinal ridges; spur tubular, slightly conic, 5-7 × 2-3 mm, apex obtuse. Column 4-6 mm; anther cap white, ca. 2 mm wide. Fl. Oct-Nov. 2n = 38.

On tree trunks in open forests or along rivers; 1000-1600 m. S Yunnan [NE India, Myanmar, N Thailand].


 

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