华东植物区系成分与日本植物间的联系

华东和日本两地为东亚地区重组成部分，同属于中国－日本森林植物亚区。两地植区物系成具有较高的相似性。两地共有连香树科（Ｃｒｃｉｄｉｐｈｙｌｌａｃｅａｅ）、三尖杉科（Ｃｅｐｈａｌｏｔａｃｅａｅ）、领春木科（Ｅｕｐｔｅｌｅａｃｅａｅ）、旌节花科ǎ樱簦幔悖瑁酰颍幔悖澹幔澹┑榷翘赜锌啤；腿毡玖降毓灿惺粼迹叮福岸嗍簟Ｈ缌迹ǎ茫颍穑簦铮恚澹颍椋幔⑺荆ǎ模椋螅幔睿簦瑁酰螅⑿」炊ǎ拢澹颍悖瑁

THE FLORISTIC SIMILARITY BETWEEN EAST CHINA AND JAPAN

East China and Japan are very important parts in subregion Sino-Japanese. There are more similarities between them.Both of them contain the same families endemic to East Asia,such as Cercidiphyllaceae,Cephalotaxaceae, Eupteleaceae, Stachyuraceae etc.Both of them alsoshare many genera of Sino Japanese distribution pattern, such as Cryptomeria,Disanthus,Berchemiella etc.Both of them contain about 830 species of Sino-Japanese distribution pattern,such as Peltoboykinia tellimoides, Kirengeshoma pelmata, Platycrater arguta, Chikusichloaaquatica, Neolitsea sericea, Theligonum japonicam etc. The vicarious species and paleobotany dataalso indicate the closer floristic relatonship between East China and Japan.