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Dinghushan | Family List | Orchidaceae | Dendrobium

Dendrobium loddigesii Rolfe

粉花石斛

Description from Flora of China

Callista loddigesii (Rolfe) Kuntze; Dendrobium loddigesii var. album Tang & F. T. Wang.

Stems often pendulous, cylindric, 10-45 cm, slender, ca. 3 mm in diam., soft, sometimes branched, with many nodes, internodes 1.5-2 cm, golden yellow when dry. Leaves alternate along entire stem, ligulate, oblong-lanceolate, or slightly obliquely oblong, usually 2-4 × 1-1.3 cm, leathery, base sheathing, apex acute and slightly hooked; leaf sheath membranous, veins raised into a lattice when dry; sheath mouth often open when dry. Inflorescence lateral on upper part of old leafy stem, 1- or 2-flowered; peduncle 2-3 mm; basal sheaths 1 or 2, cupular, short, membranous; floral bracts ovate, ca. 2 mm, membranous, apex obtuse. Pedicel and ovary 2-3 cm. Flowers pale pink or purplish red, adaxial surface of lip golden yellow at center, pale purplish red on edge, column white, front lateral sides with red stripes, anther cap white. Dorsal sepal ovate-oblong, 17-20 × ca. 7 mm, 5-veined, apex acute; lateral sepals lanceolate, 17-20 × 6-7(or more) mm, 5-veined, base oblique, apex acute; mentum subglobose, ca. 5 mm. Petals elliptic, ca. as long as dorsal sepal, 8-9(or more) mm, 3-5-veined, margin entire, apex slightly obtuse; lip suborbicular, 17-20 mm in diam., both surfaces densely pubescent, margin shortly fimbriate, apex emarginate. Column ca. 4 mm; anther cap subconic, densely finely papillate-hairy, front margin irregularly dentate.

Epiphytic on tree trunks in mountain forests, lithophytic on rocks in forests; 400-1500 m. Guangdong (Hong Kong, Luofu Shan), Guangxi, SW Guizhou, Hainan (Baisha), S Yunnan (Mengla, Simao) [Laos, N Vietnam].

生活型: 草本

栽培植物: 野生

特征: 附生草本;花淡玫瑰红色,美丽

生境: 常附生于树上

用途: 同钩头石斛,全草药用,滋阴益胃、清热生津,治热病份阴、病后虚热、胃炎、口干燥渴、腰膝疼痛酸软、食欲不振。为石斛中质量最佳之一种

门中名: 种子植物门

亚门中名: 被子植物亚门

纲中名: 单子叶植物纲

中文别名: 金钗草


 

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