双褶贝母兰（新拟）
Coelogyne stricta (D. Don) Schltr. in Fedde Repert. Sp. Nov. Beih. 4: 184. 1919; S. Y. Hu in Quart. J. Taiwan Mus. 25(3, 4): 226. 1972; Seidenf in Opera Bot. 114: 118. 1992; Averyanov, Iden. Guide Vietnam. Orch. 134. 1994. —— Cymbidium strictum D. Don, Prodr. Fl. Nepal. 35. 1825. ——Coelogyne elata Lindl, Gen. Sp. Orch. Pl. 40. 1830; Hook. f. in Curtis’s Bot. Mag. 83: t. 5001. 1857; Rolfe in J. Linn. Soc. Bot. 36: 22. 1903.
On trees along steep riverbanks in lower and upper montane forests; 1100-2000 m. SE Xizang, Yunnan [Bhutan, NE India, Laos, Myanmar, Nepal, Vietnam].
此种系Rolfe首先报告也产我国云南的，但我们迄今未采到标本。上面描述摘自国外记载。 |
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Pseudobulbs sparse, 3-5 cm apart on rhizome, oblong or narrowly ovoid, 7-13 × 2.5-5 cm, with 2 leaves at apex. |
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Leaf blade suboblong, 14-27 × 4-5 cm, leathery; petiole 3-6.5 cm. Inflorescence hysteranthous, 15-21 cm, with imbricate, convolute, sheathing sterile bracts at interface between peduncle and rachis; raceme 7-12 cm, several to 10-flowered; floral bracts caducous. |
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Flowers white, lip with yellow spots, lamellae tinged with red in apical part. Sepals oblong, 15-25 × 4-10 mm, acute; lateral sepals carinate abaxially. Petals narrowly oblong, 14-23 × 4-10 mm, acute; lip nearly ovate-oblong, ca. 22 mm, 3-lobed; mid-lobe irregularly undulate-dentate on margin; callus with 2 longitudinal lamellae extending from base to mid-lobe; lamellae crisped and slightly crenulate. Column slightly arcuate, ca. 14 mm, slightly expanded into a hood with small wings, notched at sides, front 3-lobed and margin irregular. Fl. Apr-Jun. 2n = 40, 44. |
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