勐海石斛（植物研究）
Dendrobium minutiflorum S. C. Chen et Z. H. Tsi in Bull. Bot. Res. 9 (2): 27, fig. 4 (5-6). 1980; Z. H. Tsi, S. C. Chen et K. Mori, Wild Orch. China: 82, pl. 98. 1997.
Epiphytic on tree trunks in open forests; 1000-1400 m. S Yunnan (Menghai, Mengla).
近草石斛 Dendrobium compactum Rolfe ex W. Hackett, 但本种的花序较长，常高出叶外，唇瓣近长圆形，蒴果倒卵形，很好区别。 |
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Stems narrowly ovoid or ± fusiform, 1.5-3 cm, with leaf sheaths 4-5 mm in diam., with 3 or 4 nodes, current ones enclosed in leaf sheaths. |
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Leaves usually 2 or 3, narrowly oblong, 1.5-5.5 × 0.4-0.7 cm or wider, leathery, base dilated into leaf sheaths, apex obtuse and unequally 2-lobed; leaf sheaths pale white when dry, obliquely drum-shaped, loosely clasping, papery; sheath mouth obliquely truncate. |
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Inflorescences 1-3, subterminal or lateral on upper part of current year’s stem, 2-4 cm, several flowered; rachis slender, ca. 0.5 mm in diam.; floral bracts ovate, ca. 3 × 1 mm, membranous, acute. Pedicel and ovary ca. 4 mm. Flowers spreading, greenish white or pale yellow. Dorsal sepal narrowly ovate, ca. 6.5 × 2.5 mm, 5-veined, acute; lateral sepals ovate-triangular, ca. 6.5 × 5 mm, 5-veined, base oblique, apex acute; mentum oblong, ca. 5 mm, obtuse. Petals oblong, ca. 6 × 2 mm, 3-veined, apex acute; lip suboblong, ca. 5 × 4 mm, 3-lobed above middle; lateral lobes with margin entire or inconspicuously toothed, apex sharply dentate; mid-lobe transversely oblong, margin ± crisped, apex emarginate; disk with 3 lamellae combined into a broadly thickened fleshy ridge, ridge apex terminating at base of mid-lobe. Column short and thick, ca. 2 mm, base dilated; anther cap with apical margin slightly lacerate. Capsule obovoid, nearly equal in length and width, ca. 7 mm, with 3 ribs. |
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果：蒴果倒卵形，长宽近相等，7毫米，具3个棱。 |
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