小蓝万代兰（云南植物研究）
Vanda coerulescens Griff., Notul. 3: 352, et Icon. Pl. Asiat. 3: t. 331. 1851; Rchb. f. in Walp. Ann. Bot. Syst. 6: 868. 1864, et in Gard. Chron.: 498. 1869; Hook. f. in Bot. Mag. 96: t. 5834. 1870, et Fl. Brit. Ind. 6: 50. 1894; S. J. Cheng et C. Z. Tang in Acta Bot. Yunnan. 8 (2): 217. 1986; Seidenf. in Opera Bot. 95: 208, fig. 130. 1988; Z. H. Tsi et S. C. Chen in Acta Phytotax. Sin. 33 (3): 296. 1995; Z. H. Tsi, S. C. Chen et K. Mori, Wild Orch. China: 114, pl. 282. 1997; 中国兰花全书: 175. 1998. ——Aerides orthocentrum Hand. -Mazz. in Oesterr. Bot. Zeitschr. 87: 132. 1938.——Vanda parviflora auct. non Lindl.: S. Y. Hu in Quart. J. Taiwan Mus. 28 (1, 2): 178. 1975.
On tree trunks in open forests; 300-1600 m. S and SW Yunnan [NE India, Myanmar, N Thailand].
Some authors believe that Vanda lilacina Teijsm.et Binnend.and V.testacea ( Lindl. ) Rchb.f.are also produced in Yunnan, China. We didn 't see the specimen, it could be a mistake.
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Stems 2-8 cm, 1-1.5 cm in diam. |
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Leaf blade 7-12 × 1-1.3 cm, fleshy, apex praemorse. |
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Inflorescences 1 or 2, 14-36 cm, sparsely 10-16-flowered; peduncle 11-35 cm; rachis not distinctly zigzag, 10-25 cm; floral bracts ovate-triangular, 1.5-3 × 1.5-3 mm, apex acute. Flowers thinly textured, widely opening, 1.5-2.5 cm in diam.; pedicel and ovary white, tinged with pale blue, 1.5-3 cm; sepals and petals pale blue or white tinged with pale blue, not tessellated. Sepals similar, obovate or spatulate, 10-17 × 6-8 mm, base cuneate, apex obtuse. Petals oblanceolate-spatulate, 10-17 × 5-7 mm, base cuneate, apex obtuse; lip deep blue, shorter than sepals, spurred; lateral lobes erect, pale blue, suboblong, 3-4 × 1.5-2.3 mm, apex oblique; mid-lobe dark purple or blue, oblanceolate, 7-9 × 4-6 mm, base with a pair of calli, apex rounded and emarginate; disk centrally often with 3-5 thickened ridges and lateral ones thicker and dilated at apex; spur slightly curved, cylindric, ca. 5 mm, apex obtuse. Column blue, 5-7 mm; anther cap pale yellow, ca. 1.5 mm wide. Fl. Mar-Apr. |
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