长柄贝母兰  转到中国兰科植物志

Coelogyne longipes  分类来源:中国植物志

长柄贝母兰(西藏植物志) 

Coelogyne longipes Lindl., Fol. Orch. Coelogyne 10. 1854; W. W. Smith in Notes Bot. Gard. Edinb. 13: 199. 1921; S. Y. Hu in Quart. J. Taiwan Mus. 25 (3, 4): 224. 1972; Seidenf. in Dansk. Bot. Ark. 29 (4): 80. fig. 34. 1975; 西藏植物志5: 859. 1987; P. Ormerod in Austr. Orch. Rev. 1997 (Feb.) : 22 (fig.) . 1997. ——logyne raizadai Jain et Das in Proc. Ind. Acad. Scl. 87B, 5: 119. 1978. 

On trees in forests; 1000-2600 m. SE Xizang, W to SE Yunnan [Bhutan, NE India, Laos, Myanmar, Nepal, Thailand].

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Rhizome stout, 5-7 mm in diam., with dense, nearly leathery scaly sheaths, with rather short internodes. Pseudobulbs 3-4 cm apart on rhizome, lucid when dried, nearly cylindric, slightly narrowed toward both ends, 3-7.5 cm × 8-12(-15) mm, with 2 leaves at apex and with several sheaths at base; sheaths bright yellow, lucid.

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Leaf blade oblong-oblanceolate or suboblong-lanceolate, (10-)15-23 × (1-)1.8-3 cm, base cuneate, apex acuminate; petiole 2.5-6 cm.

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 Inflorescence hysteranthous; peduncle bare, 7-15 cm, slender, with imbricate, convolute, sheathing, sterile bracts at interface between peduncle and rachis, 5-7-flowered; rachis thickened in lower part; floral bracts almost deciduous at anthesis, ca. 1.8 cm; pedicel and ovary 7-10 mm; rachis continuing to develop and producing a further set of imbricate, convolute, sheathing sterile bracts at interface between peduncle and rachis and flowers annually. Flowers white or pale yellow. Sepals ovate-oblong, ca. 10 × 5-6 mm, 5-veined, apex shortly acuminate. Petals narrowly linear or filiform, ca. 10 × 0.3 mm, attenuate toward apex; lip nearly broadly ovate, ca. 10 × 8-9 mm, 3-lobed; lateral lobes subovate, margins entire; mid-lobe broadly oblong or subelliptic, ca. 6 × 5 mm, margin ± crisped, apex truncate and emarginate; callus with 2 narrow longitudinal lamellae extending from base of lip to near middle of mid-lobe, prominent on mid-lobe only. Column slightly arcuate, 5-6 mm, both sides with broad wings surrounding its apex, to 4 mm wide. Capsule narrowly obovoid-oblong, ca. 2 × 0.6 cm. Fl. Jun, fr. next Mar. 2n = 40.

Paul   Ormerod (1997)在其研究中承认Coelogyne raizadai,但所提供的区别特征极其细微,即使在他所绘的图中也难以分辨。从我们所掌握的标本看,也无明显的界限,故予以归并。

 

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