睡蓮苗 (21)

　　睡蓮（學名：NymphaeaL.），多年生(sheng)(sheng)(sheng)(sheng)水生(sheng)(sheng)(sheng)(sheng)草本；根狀莖肥厚。葉(xie)柄(bing)圓(yuan)(yuan)柱形(xing)(xing)，細長。葉(xie)橢(tuo)圓(yuan)(yuan)形(xing)(xing)，浮(fu)生(sheng)(sheng)(sheng)(sheng)于水面，全(quan)緣(yuan)，葉(xie)基心形(xing)(xing)，葉(xie)表面濃綠，背面暗紫。葉(xie)二型：浮(fu)水葉(xie)圓(yuan)(yuan)形(xing)(xing)或卵形(xing)(xing)，基部(bu)具彎(wan)缺，心形(xing)(xing)或箭形(xing)(xing)，常無出(chu)水葉(xie)；沉水葉(xie)薄膜(mo)質(zhi)(zhi)，脆弱。花(hua)(hua)單生(sheng)(sheng)(sheng)(sheng)，浮(fu)于或挺出(chu)水面；花(hua)(hua)萼四枚，綠色；花(hua)(hua)瓣通常八(ba)片(pian)。果(guo)實倒卵形(xing)(xing)，長約3厘米(mi)。花(hua)(hua)大形(xing)(xing)、美麗(li)，浮(fu)在(zai)(zai)或高(gao)出(chu)水面，白(bai)天開花(hua)(hua)夜間閉合；萼片(pian)近離生(sheng)(sheng)(sheng)(sheng)；花(hua)(hua)瓣白(bai)色、藍(lan)色、黃色或粉紅色，成(cheng)(cheng)多輪，有(you)時內輪漸變(bian)成(cheng)(cheng)雄蕊；藥(yao)隔有(you)或無附屬物；心皮(pi)(pi)環(huan)狀，貼生(sheng)(sheng)(sheng)(sheng)且半沉沒在(zai)(zai)肉(rou)質(zhi)(zhi)杯(bei)狀花(hua)(hua)托，且在(zai)(zai)下部(bu)與(yu)其部(bu)分(fen)地(di)愈合，上部(bu)延伸成(cheng)(cheng)花(hua)(hua)柱，柱頭成(cheng)(cheng)凹入(ru)柱頭盤(pan)，胚(pei)珠倒生(sheng)(sheng)(sheng)(sheng)，垂(chui)生(sheng)(sheng)(sheng)(sheng)在(zai)(zai)子(zi)房內壁(bi)。漿果(guo)海綿質(zhi)(zhi)，不規(gui)則開裂，在(zai)(zai)水面下成(cheng)(cheng)熟(shu)；種子(zi)堅硬，為膠質(zhi)(zhi)物包裹，有(you)肉(rou)質(zhi)(zhi)杯(bei)狀假(jia)種皮(pi)(pi)，胚(pei)小，有(you)少量內胚(pei)乳(ru)及豐富外胚(pei)乳(ru)。