窄膜麻黃檢視原始碼討論檢視歷史
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中文名稱：窄膜麻黃 拉丁學名：Ephedra lomatolepis Schrenk 科：麻黃科 Ephedraceae 屬：麻黃屬 Ephedra 種：窄膜麻黃 |
窄膜麻黃(zhǎi mó má huáng)，學名 Ephedra lomatolepis Schrenk， 小灌木。產於新疆維吾爾自治區沙地，海拔500-700米地帶。 [1]
形態特徵
Shrubs or subshrubs, to 50 cm; herbaceous branchlets green, 1-1.5 mm in diam., rigid, finely furrowed, internodes 4-6 cm.
Leaves and bracts of cones with narrow, membranous margins. Leaves opposite or in whorls of 3. Pollen cones densely aggregated at nodes along branches, 5-6 mm;
bracts in 2-4 pairs, connate for ca. 1/2 their length; anthers 6-8, shortly stipitate. Seed cones solitary or in clusters of 3 or 4; peduncle long, 1-5 cm;
bracts in 3-5 pairs or whorls, free, margins prominent, broad, membranous, often erose, becoming red and fleshy at maturity;
integument tube ca. 1.5 mm, slightly spirally twisted. Seeds 2 or 3, brown, ca. 4 mm. Pollination May, seed maturity Jul.
產地生境
Sandy places; 500-700 m. Xinjiang [Kazakhstan, SW Mongolia]
辨析
H. Riedl notes that Ephedra lomatolepis has seed cones light brown and dry when mature, with bracts free (as in E. przewalskii), the membranous margins much wider than the herbaceous center. The characters of the male plant described here seem to apply to a taxon other than E. lomatolepis (which is endemic to the Balkhash area of Kazakhstan), possibly even to a new species.
標本鑑定信息
學名 Ephedra lomatolepis Schrenk 中文名 鑑定人 劉媖心 鑑定時間 19890621
採集信息
採集人 楊喜林 劉媖心 採集號 79268 採集時間 採集地 中國 新疆 海拔 生境 半固定沙丘 習性 物候期 無花無果