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滇缅山槟榔

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界： 植物界 门： 被子植物门 Angiospermae 纲： 单子叶植物纲 Monocotyledoneae 目： 初生目 Principes 科： 棕榈科 Palmae 亚科： 槟榔亚科 Arecoideae 族： 槟榔族 ARECEAE 亚族： 槟榔亚族 ARECINAE 属： 山槟榔属 Pinanga

滇缅山槟榔(diān miǎn shān bīn láng)，学名 Pinanga acuminata A. J. Henderson，棕榈科山槟榔属植物，Stems clustered, to 5 m tall, 1.5-2 cm in diam., yellowish. Leaves pinnate; sheaths closed and forming crownshafts, to 25 cm, yellowish green with reddish brown scales; petioles to 30 cm; rachis 45-65 cm; pinnae 6-9 per side of rachis, green abaxially, sigmoid, multi-veined, regularly arranged, distantly spaced; middle pinnae 30-39 × 2.5-4 cm.

形态特征

Stems clustered, to 5 m tall, 1.5-2 cm in diam., yellowish. Leaves pinnate; sheaths closed and forming crownshafts, to 25 cm, yellowish green with reddish brown scales;

petioles to 30 cm; rachis 45-65 cm; pinnae 6-9 per side of rachis, green abaxially, sigmoid, multi-veined, regularly arranged, distantly spaced; middle pinnae 30-39 × 2.5-4 cm.

Inflorescences spicate, pendulous or rarely erect; peduncles 1.5-2 × 0.4-0.5 cm; rachis absent; rachilla 1, 11-19 cm, straight, rounded in cross section, glabrous;

triads spirally arranged, sunken in rachilla; male flowers to 6 mm, semipersistent; sepals to 1.5 mm, connate at base into a 3-lobed cupule; petals to 6 mm, triangular, valvate;

stamens not seen; female flowers ca. 3 mm; sepals ca. 3 mm, acuminate, scarcely ciliate; petals ca. 3 mm, ciliate. Fruits red, ellipsoid, to 1.8 × 1 cm.

分类文献

FOC >> Vol.23 (2010) >> Arecaceae >> Pinanga

2.Pinanga acuminata A. J. Henderson Makinoa, n.s. 6: 2. 2007. 滇缅山槟榔 dian mian shan bin lang

产地生境

Lowland rain forests; below 1000 m. Yunnan [Myanmar].