景东厚唇兰（植物分类学报）
Epigeneium fuscescens (Griff.) Summerh. in Kew Bull. 13 (2): 262. 1975; Seldenf. in Dansk Bot. Ark. 34 (1): 70. 1980; Z. H. Tsi in Acta Phytotax. Sin. 22 (6): 484. 1984; 中国兰花全书: 58. 1998. ——Dendrobium fuscescens Griff., Notul. 3: 308. 1851, et Icon. Pl. Asiat 3: pl. 309. 1851; Hook. f., Fl. Brit. Ind. 5: 712. 1890.—— Sarcopodium fuscescens (Griff.) Lindl., Fol. Orch. Sarcopodium: 2. 1853; Kraenzl. in Engler, Pflanzenr. 45 (IV. 50, II. B. 21): 321. 1910.
Lithophytic on damp rocks along valleys; 1300-2300 m. S Guangxi, SE Xizang, S and W Yunnan [Bhutan, NE India, Nepal]. |
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Rhizome ca. 4 mm in diam., often branching, densely covered with tubular sheaths. Pseudobulbs borne 4-6 cm apart from one another, narrowly ovoid, slightly curved, ca. 25 × 5 mm, 2(or 3)-leaved, covered with 2 or 3 chestnut sheaths. |
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Leaf blade oblong, 3-6.5 × 1-1.9 cm, leathery, base subsessile or with a short petiole, apex ± obtuse and slightly emarginate. |
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Inflorescence 1-flowered; peduncle ca. 1 cm, base covered with sheaths; floral bracts much shorter than pedicel and ovary. Flowers pale brown; pedicel and ovary ca. 3 cm. Dorsal sepal ovate-lanceolate, 17-20 × ca. 5 mm, long acuminate; lateral sepals falcate-lanceolate, 21-24 × 5-10 mm, acuminate-caudate. Petals narrowly oblong or linear, 25-30 × 2.5-3 mm, acuminate-caudate; lip ovate-oblong in outline, ca. 15 mm, 3-lobed; lateral lobes erect, suboblong; mid-lobe elliptic, ca. 12 × 6 mm, often hooked aristate; disk with 3 lamellae, median shorter. Column ca. 7 mm, foot ca. 9 mm. Fl. Oct. |
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