棒节石斛  转到中国兰科植物志

Dendrobium findlayanum  分类来源:中国植物志

棒节石斛(植物分类学报) 

Dendrobium findlayanum Par. et Rchb. f. in Trans. Lindl. Soc. 30: 149. 1874, et Gard. Chron. n. s., 1: 334. 1877; Hook. f. in Bot. Mag. 105: t. 6438. 1879, et Fl. Brit. Ind. 5: 742. 1890; Kraenzl. in Engler, Pflanzenr. 45 (IV. 50, II. B. 21): 30. 1910; Seidenf. in Opera Bot. 83: 62, fig. 33. 1983, et l. c. 114: 230. 1992; Z. H. Tsi et S. C. Chen in Acta Phytotax. Sin. 33 (3): 291. 1995; Z. H. Tsi, S. C. Chen et K. Mori, Wild Orch. China: 74. pl. 86. 1997; 中国兰花全书: 164. 图6-13 (9). 1998. 

Epiphytic on tree trunks in open forests; 800-900 m. S Yunnan (Mengla) [N Laos, Myanmar, N Thailand].

 

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Stems erect or ascending, ca. 20 cm, 7-10 mm in diam., unbranched, with several nodes, internodes compressed clavate or clavate, 3-3.5 cm, base often with persistent papery leaf sheaths. 

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Leaves alternate on upper part of stem, lanceolate, 5.5-8 × 1.3-2 cm, leathery, base with clasping sheath, apex slightly obtuse and unequally bilobed. 

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 Inflorescences from old stems after leaves have fallen, 2-flowered; peduncle 6-16 cm; basal sheaths ca. 5 mm, membranous; floral bracts ovate-triangular, ca. 6 mm, membranous. Pedicel and ovary pale rose, 5-6 cm. Flowers spreading; sepals and petals white with roseate tip, lip base roseate, with purplish red stripes on both sides, disk golden yellow at center, column with purplish red stripes at front, anther cap white. Dorsal sepal oblong-lanceolate, 35-37 × ca. 9 mm, 5-veined, subobtuse to acute; lateral sepals ovate-lanceolate, 35-37 × ca. 9 mm, 5-veined, apex subacute; mentum subcylindric, ca. 5 mm. Petals broadly oblong, 35-37 × ca. 18 mm, 5-veined, base shortly clawed, apex acute; lip suborbicular, concave, ca. 24 mm wide, densely pubescent, acute. Column ca. 8 mm; anther cap bluntly rounded.




Flowering March.

 

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