睡蓮苗 (30)
睡(shui)蓮(學(xue)名:NymphaeaL.),多年生水(shui)(shui)生草本(ben);根狀(zhuang)莖肥(fei)厚。葉(xie)柄圓柱(zhu)形(xing)(xing)(xing),細長。葉(xie)橢圓形(xing)(xing)(xing),浮(fu)生于水(shui)(shui)面(mian),全(quan)緣,葉(xie)基心形(xing)(xing)(xing),葉(xie)表(biao)面(mian)濃綠,背面(mian)暗(an)紫(zi)。葉(xie)二型:浮(fu)水(shui)(shui)葉(xie)圓形(xing)(xing)(xing)或(huo)(huo)卵(luan)(luan)形(xing)(xing)(xing),基部(bu)具彎缺(que),心形(xing)(xing)(xing)或(huo)(huo)箭形(xing)(xing)(xing),常(chang)無(wu)出水(shui)(shui)葉(xie);沉(chen)水(shui)(shui)葉(xie)薄膜質,脆弱。花(hua)(hua)單(dan)生,浮(fu)于或(huo)(huo)挺(ting)出水(shui)(shui)面(mian);花(hua)(hua)萼四枚,綠色(se);花(hua)(hua)瓣(ban)通常(chang)八片。果實倒(dao)卵(luan)(luan)形(xing)(xing)(xing),長約3厘米。花(hua)(hua)大形(xing)(xing)(xing)、美麗(li),浮(fu)在或(huo)(huo)高(gao)出水(shui)(shui)面(mian),白(bai)天開花(hua)(hua)夜間閉合(he);萼片近離生;花(hua)(hua)瓣(ban)白(bai)色(se)、藍色(se)、黃(huang)色(se)或(huo)(huo)粉紅色(se),成(cheng)多輪,有時內輪漸變成(cheng)雄蕊;藥(yao)隔有或(huo)(huo)無(wu)附屬物;心皮環狀(zhuang),貼生且(qie)半沉(chen)沒在肉質杯(bei)狀(zhuang)花(hua)(hua)托(tuo),且(qie)在下(xia)部(bu)與其部(bu)分地愈合(he),上部(bu)延伸成(cheng)花(hua)(hua)柱(zhu),柱(zhu)頭(tou)成(cheng)凹入柱(zhu)頭(tou)盤,胚(pei)珠倒(dao)生,垂生在子(zi)房內壁。漿果海綿質,不規則開裂,在水(shui)(shui)面(mian)下(xia)成(cheng)熟;種子(zi)堅硬,為膠質物包裹,有肉質杯(bei)狀(zhuang)假種皮,胚(pei)小,有少(shao)量內胚(pei)乳(ru)(ru)及豐富外(wai)胚(pei)乳(ru)(ru)。