滇緬山檳榔檢視原始碼討論檢視歷史

滇緬山檳榔

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界： 植物界 門： 被子植物門 Angiospermae 綱： 單子葉植物綱 Monocotyledoneae 目： 初生目 Principes 科： 棕櫚科 Palmae 亞科： 檳榔亞科 Arecoideae 族： 檳榔族 ARECEAE 亞族： 檳榔亞族 ARECINAE 屬： 山檳榔屬 Pinanga

滇緬山檳榔(diān miǎn shān bīn láng)，學名 Pinanga acuminata A. J. Henderson，棕櫚科山檳榔屬植物，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.

形態特徵

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.

分類文獻

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

2.Pinanga acuminata A. J. Henderson Makinoa, n.s. 6: 2. 2007. 滇緬山檳榔 dian mian shan bin lang

產地生境

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