盾柄兰  转到中国兰科植物志

Porpax ustulata  分类来源:中国植物志

盾柄兰(云南植物研究)

 

Porpax ustulata (Par. et Rchb. f.) Rolfe in Orch. Rev. 16: 8. 1908; Kraenzl. in Engler, Pflanzenr. 45 (IV. 50. II. B. 21): 163. 1911; Seidenf. in Bot. Tidsskr. 72: 8. 1977, et in Opera Bot. 89: 122, fig. 73. 1986; S. C. Chen et Z. H. Tsi in Acta Bot. Yunnan. 6 (3): 268. 1984; Z. H. Tsi et S. C. Chen in Acta Phytotax. Sin. 33 (3): 295. 1995. ——Eria ustulata Par. et Rchb. f. in Trans. Linn. Soc. 30: 147. 1874.

 

in situ

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Epiphytic on trees in valley forests; 600-1500 m. S Yunnan [Myanmar, Thailand].

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Pseudobulbs flattened globose, 4-5 × 5-6 mm, covered with strongly reticulate-veined sheaths; reticulate veins convex, with meshes ca. 5 mm in diam.

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Leaves 2, developing at anthesis; leaf blade obovate, elliptic, or suboblong, 1.5-2.5 × 0.8-1.4 cm, 13-15-veined, base contracted into a short petiole, margin thinly ciliate, apex rounded or slightly acute; petiole 2-4 cm.

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Inflorescence arising between 2 apical leaves, very short, 1- or 2-flowered; floral bracts small. Flowers suberect, red, 6-7 mm; pedicel and ovary 2-3 mm, pubescent. Dorsal sepal ovate, 6-7 × 3-4 mm, abaxially pubescent, connate to lateral sepals shortly at base, acute or shortly acuminate at apex; lateral sepals fused with each other at 1/2-2/3 their length, base dilated forming a subglobose sac, abaxially hairy. Petals spatulate, 5-6 × ca. 2 mm, margin ± erose, adaxially with faint small silvery-white dots; lip recurved, suboblong-lanceolate, ca. 2 × 0.7 mm, base contracted, distal margin shortly fimbriate, apex cuspidate. Column very short, foot short. 

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 Capsule broadly obovoid, ca. 3 × 3.5 mm; fruiting pedicel 4-5 mm. Fl. and fr. Jun.



 



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