睡蓮苗 (36)

　　睡(shui)蓮（學名(ming)：NymphaeaL.），多年生(sheng)(sheng)水(shui)生(sheng)(sheng)草本(ben)；根(gen)狀莖肥(fei)厚。葉(xie)柄圓(yuan)柱(zhu)形(xing)(xing)(xing)，細長。葉(xie)橢圓(yuan)形(xing)(xing)(xing)，浮(fu)生(sheng)(sheng)于(yu)水(shui)面(mian)(mian)，全(quan)緣，葉(xie)基(ji)(ji)心(xin)形(xing)(xing)(xing)，葉(xie)表面(mian)(mian)濃綠，背面(mian)(mian)暗(an)紫(zi)。葉(xie)二(er)型：浮(fu)水(shui)葉(xie)圓(yuan)形(xing)(xing)(xing)或(huo)卵形(xing)(xing)(xing)，基(ji)(ji)部具彎缺(que)，心(xin)形(xing)(xing)(xing)或(huo)箭(jian)形(xing)(xing)(xing)，常無出水(shui)葉(xie)；沉水(shui)葉(xie)薄膜質(zhi)，脆弱。花(hua)(hua)單生(sheng)(sheng)，浮(fu)于(yu)或(huo)挺出水(shui)面(mian)(mian)；花(hua)(hua)萼四(si)枚，綠色(se)；花(hua)(hua)瓣通常八片。果(guo)(guo)實倒(dao)卵形(xing)(xing)(xing)，長約3厘米。花(hua)(hua)大形(xing)(xing)(xing)、美麗，浮(fu)在(zai)或(huo)高出水(shui)面(mian)(mian)，白天開花(hua)(hua)夜間閉合(he)；萼片近離生(sheng)(sheng)；花(hua)(hua)瓣白色(se)、藍色(se)、黃色(se)或(huo)粉(fen)紅色(se)，成多輪，有(you)(you)(you)時內(nei)輪漸變(bian)成雄(xiong)蕊；藥隔有(you)(you)(you)或(huo)無附(fu)屬物(wu)；心(xin)皮環狀，貼(tie)生(sheng)(sheng)且半沉沒在(zai)肉質(zhi)杯(bei)狀花(hua)(hua)托(tuo)，且在(zai)下部與(yu)其部分地愈合(he)，上部延伸成花(hua)(hua)柱(zhu)，柱(zhu)頭(tou)(tou)成凹入柱(zhu)頭(tou)(tou)盤(pan)，胚(pei)珠(zhu)倒(dao)生(sheng)(sheng)，垂生(sheng)(sheng)在(zai)子房(fang)內(nei)壁。漿果(guo)(guo)海綿質(zhi)，不規則開裂，在(zai)水(shui)面(mian)(mian)下成熟；種(zhong)子堅硬，為(wei)膠質(zhi)物(wu)包裹，有(you)(you)(you)肉質(zhi)杯(bei)狀假種(zhong)皮，胚(pei)小，有(you)(you)(you)少量內(nei)胚(pei)乳及豐(feng)富外胚(pei)乳。