山茶属瘤果茶组植物分类(英文)

A CIASSIFICATION ON THE SECTION TUBERCULATA OF CAMELLIA

瘤果茶组植物在50年代仅有1种,1981年,在专著《山茶属植物的系统研究》里,记载了瘤果茶组6个种。此后10年间,瘤果茶组种类不断被发现,目前全组已知的凡17种,按子房是否具有毛被分为2个亚组,它集中分布于中国西南部各省,尤以贵州省最集中,在那里多达10种,其余的分散于云南、四川,湖南、湖北及广西。形成1个完整的分布区。本文就瘤果茶组17种,编出检索表,其中有4个新种。它们是乐业瘤果茶Camellia leyeensisChang et Zhong,sp.nov.,尖萼瘤果茶Camellia acutisepala Chang et Ren,sp.nov.,拟瘤果茶Camellia atuberculata Chang et Ren,sp.nov.,湖北瘤果茶Ca-mellia hupehensis Chang et Ren,sp.nov.

Within the recent thirty years,the tuberculate-fruit Camellia increased from only one species to 17 species,all of them concentrated on the southwest China,the centre is located at Guizhou Province,about 10 species were found from this province,and the remainder scattered in Hunan,Hubai,Sichuan,Yunnan and Guangxi,and forming a completed areal.The numerous species of tuberculate-fruit Camellia being found,once more proved that the southwest region of China is the cradle of the genus Camellia.In this paper 4 new species are reported,and a key is prepared.