日本浮萍
| 日本浮萍 |
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中文學名:日本浮萍 拉丁學名:Lemna japonica Landolt 界:植物界 分布區域:中國 |
日本浮萍(rì běn fú píng，學名 Lemna japonica Landolt，異名：Lemna leiboensis)，禾本科，一年生浮水小草本，生長在手中。分布於中國大部分地區。 [1]
目錄
日本浮萍基本信息
日本浮萍形態特徵
一年生浮水小草本。
Lemna leiboensis M. G. Liu & C. H. You.
Fronds free floating on water surface, 1-8 coherent in one group, without green stalk at base (but with a thin white stipe connecting fronds), shiny green, sometimes reddish or red on lower surface (always deeper red on lower surface than on upper), obovate to elliptic, 2-6(-7) mm, 1.3-1.8 × as long as wide, flat or slightly gibbous on lower surface, with mostly distinct papillae on upper surface near apex and above node and indistinct ones along midline, margin entire, base rounded;
veins 3(-5), nearly reaching apex, greatest distance between lateral veins near or proximal to middle, lateral veins outcurved medially. Root 0.5-15(-18) cm, sheath not winged, apex rounded (to pointed).
Turions absent. Ovary with 1 ovule; utricular scale with narrow opening at apex. Fruit not known. Fl. (very rare) Jul-Oct. 2n = 40*, 50, 63.
生境產地
Lakesides, pools, ponds, ditches; in regions with moderately temperate to warm-temperate climate; sea level to 2900 m. Hebei, Heilongjiang, Henan, Hubei, Jiangsu, Nei Mongol, Shaanxi, Shandong, Shanxi, S Sichuan, Yunnan, Zhejiang [Japan, Korea].
Lemna japonica may have originated from hybridization between L. minor and L. turionifera.Lemna japonica may have originated from hybridization between L. minor and L. turionifera.[2]
日本浮萍生長習性
生 境：水中
是否栽培：野生[3]
日本浮萍地理分布
參考來源
- ↑ 日本浮萍, 植物智, 2020-01-18
- ↑ FOC >> Vol.23 (2010) >> Lemnaceae >> Lemna | eFloras.org Link
- ↑ 周有院，郭振飛. 浮萍光周期誘導的探討:—與日本青萍6746對比試驗． 《 武漢植物學研究 》 ， 1994
- ↑ 賀仁. 稻田除草也可不用除草劑——日本農民用米糠加發酵肥、浮萍等治草效果明顯． 《 CNKI 》 ， 2000
- ↑ 日本浮萍 ．中國自然標本館[引用日期2019-07-01
- ↑ 日本浮萍 Lemna japonica 日本浮萍 分類信息 形態特徵 生態習性 功用價值 物種保護 DNA序列 分類樹 植物標本 名稱分類 Sp2000 CN(2020) 植物志 中國植物志 (FRPS) Flora ...