Calamus siphonospathus var. siphonospathus Image
Calamus siphonospathus var. siphonospathus
Copyright © Phil Markey

Calamus siphonospathus var. siphonospathus

Family: Arecaceae    棕櫚樹

通用名稱: Lanyu sheng-teng

科學同義:
Calamus siphonospathus var. batanensis, Calamus siphonospathus var. sublaevis, Calamus batanensis

枝條抗寒性區: 10b     英國和美國的地帶地圖

Calamus siphonospathus var. siphonospathus 學問

鑑別:
Stems solitary, to 30 m long and 5 cm diameter (with leaf sheaths); leaf sheaths yellowish-brown, sparsely covered with needle-like, yellowish spines to 1 cm long; knee obscure; ocreas present, membranous; flagella absent; petioles to 20 cm long; pinnae to 50 per side of rachis, linear, regularly arranged, closely spaced to 2 cm apart; cirri present, to 1 m long. Inflorescence bracts open and diameter, yellowish-brown.

一般資料:
This species is known only from the Philippines, and just reaches Taiwan on Lanyu Island. It is very variable morphologically, and six varieties are recognized (Lapis, 1987). The Taiwan plants were placed, without discussion, in var. sublevis Becc. by Chang (1988).

分佈:

最初是從, Philippines, Taiwan

地點: Philippines. Luzon. And Lanyu Island Taiwan (22.054205°N, 121.552734°E)

觀察
地圖可能並不代表完整的自然分佈。 (衛星標記,顯示觀察數據)。

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