华南大戟科植物的增补

NEW AND NOTEWORTHY SPECIES OF EUPHORBIACEAE FROM SOUTHERN CHINA

摘要:

作者清理采自中国南部大戟科标本过程，发现一些需增补的分类群，现报道其中２个新种：分布于广东封开县的印禅铁苋菜Ａｃａｌｙｐｈａｗｕｉ和印禅三宝木Ｔｒｉｇｏｎｏｓｔｅｍｏｎｗｕｉ；２个新纪录种：分布于云南勐海县的短序白桐树Ｃｌａｏｘｙｌｏｎｓｕｂｓｅｓｓｉｌｉｆｌｏｒｕｍ和生长于海南南沙群岛的南沙大戟Ｅｕｐｈｏｒｂｉａｒｅｎｉｆｏｒｍｉｓ；１个近代生长于广东、贵州和四川的归化种－桃叶猩猩草Ｅｕｐｈｏｒｂｉａｈｅｔｅｒｏｐｈｙｌｌａ，而将依据四川渡口的标本命名的柳叶大戟Ｅ．ｅｐｉｌｉｂｉｉｆｏｌｉａ作为它的新异名．

Abstract:

Five taxa of Euphorbiaceae from southern China are described.Acalypha wui H.S.Kiu and Trigonostemon wui H.S.Kiu are new species, which grow on limestone hills in the west part of Guangdong Province.Claoxylon subsessiliflorum Croiz.and Euphorbia reniformis B1.are new records for China.Euphorbia heterophylla Linn.is a naturalized weed in China,and E.epilobiifolia W.T.Wang is treated as synonym of E.heterophylla.