长圆叶兜被兰  转到中国兰科植物志

Neottianthe oblonga   分类来源:中国植物志

Neottianthe oblonga K. Y. Lang Acta Phytotax. Sin. 35: 544. 1997.

长圆叶兜被兰 chang yuan ye dou bei lan

Plants 9.5-14 cm tall. Tubers ovoid, ca. 10 mm. Stem erect, with 1 or 2 tubular sheaths at base, 1-leaved. Leaf basal, oblong, 4-6 × 1.2-1.8 cm, apex subobtuse or subacute. Peduncle ebracteate; rachis 4-5 cm, subdensely 5-9-flowered; floral bracts lanceolate, 6-8 mm, shorter than ovary, apex acuminate. Flowers secund, pale purple; ovary and pedicel slightly arcuate, 8-10 mm. Sepals connivent and forming a hood; hood 7-8 × ca. 5 mm; dorsal sepal linear-lanceolate, 6-7.5 × 1.4-1.6 mm, 1-veined, apex acuminate; lateral sepals lanceolate, oblique, 7-8.5 × 2-2.2 mm, 1-veined, apex acuminate. Petals appressed to dorsal sepal, linear, 5-6.5 × 0.8-1 mm, 1-veined, apex acuminate; lip spreading, narrowly oblong-ovate, 8-9 × ca. 4 mm, 3-lobed near middle; lateral lobes linear-lanceolate, 3-3.5 × 0.5-0.7 mm, 1-veined, apex obtuse; mid-lobe lanceolate, 4-4.5 × 1.3-1.5 mm, 3-veined, apex obtuse; spur pendulous, ± straight to slightly curved forward, conic, 5-6 mm, stout, 1.8-2 mm in diam. at base, slightly attenuate, apex obtuse. Fl. Aug.

● Quercus forests; ca. 3100 m. NW Yunnan.


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