麻栗坡叉柱兰  转到中国兰科植物志

Cheirostylis malipoensis  分类来源:中国植物志

麻栗坡叉柱兰Cheirostylis malipoensis

 Forests on limestone mountains, thickets; ca. 1100 m. SE Yunnan.

The lip of Malipo is similar to that of Yunnan Chazhulan, the difference is that its rhizome internodes are narrowed at both ends ; posterior lip with longitudinally spaced secondary glands and stellate lobed glands. In addition, fork ridge orchid and Yunnan fork ridge orchid have the same domain, but the flowering period is different. The flowering period of Yunnan Cymbidium is from March to April, and the flowering period of Mali Cymbidium is from December to January.

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Plants 10-12 cm tall. Rhizome creeping, 8-20 × 2-2.5 mm, fleshy, nodes slightly contracted. Stem erect, 5-30 mm, 1-4-leaved.

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 Leaves green, often reticulated with dark green, ovate-cordate, 1.2-2 × 0.9-1.2 cm, apex acute to subacuminate; petiole-like base and sheath 0.6-0.8 cm. 

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 Inflorescence 6-9 cm, pubescent, with 2 or 3 sterile bracts; rachis short, usually less than 1 cm, 2-4-flowered; floral bracts ovate-lanceolate, 7-9 mm, apex acuminate. Flowers white; pedicel and ovary 4-6 mm, sparsely villous. Sepals 4-5 mm, basal 1/2 connate and forming a tube, sparsely villous on outer surface toward base; free apical lobes triangular-ovate, 2-2.5 mm, subobtuse. Petals appressed to dorsal sepal, narrowly lanceolate-oblong, 3.5-4 × ca. 1.5 mm; lip 6-9 mm, 3-partite; hypochile saccate, ca. 2 × 1.5 mm, divided by a longitudinal septum into 2 parts, each part with 2 horn-shaped calli (rarely with just 1 callus on each side); mesochile ca. 1 mm; epichile with 2 green or beige spots at base, deeply bilobed; lobes flabellate, ca. 4 × 4 mm, apical margin 3-5-toothed. Column 1-2 mm; stelidia ca. 1 mm, slightly longer than rostellum arms. Fl. Dec-Feb.

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Cheirostylis malipoensis X. H. Jin & S. C. Chen, Acta Phytotax. Sin. 45: 797. 2007.

麻栗坡叉柱兰 ma li po cha zhu lan

Plants 10-12 cm tall. Rhizome creeping, 8-20 × 2-2.5 mm, fleshy, nodes slightly contracted. Stem erect, 5-30 mm, 1-4-leaved. Leaves green, often reticulated with dark green, ovate-cordate, 1.2-2 × 0.9-1.2 cm, apex acute to subacuminate; petiole-like base and sheath 0.6-0.8 cm. Inflorescence 6-9 cm, pubescent, with 2 or 3 sterile bracts; rachis short, usually less than 1 cm, 2-4-flowered; floral bracts ovate-lanceolate, 7-9 mm, apex acuminate. Flowers white; pedicel and ovary 4-6 mm, sparsely villous. Sepals 4-5 mm, basal 1/2 connate and forming a tube, sparsely villous on outer surface toward base; free apical lobes triangular-ovate, 2-2.5 mm, subobtuse. Petals appressed to dorsal sepal, narrowly lanceolate-oblong, 3.5-4 × ca. 1.5 mm; lip 6-9 mm, 3-partite; hypochile saccate, ca. 2 × 1.5 mm, divided by a longitudinal septum into 2 parts, each part with 2 horn-shaped calli (rarely with just 1 callus on each side); mesochile ca. 1 mm; epichile with 2 green or beige spots at base, deeply bilobed; lobes flabellate, ca. 4 × 4 mm, apical margin 3-5-toothed. Column 1-2 mm; stelidia ca. 1 mm, slightly longer than rostellum arms. Fl. Dec-Feb.

● Forests on limestone mountains, thickets; ca. 1100 m. SE Yunnan.



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