Abstract: Calamus L. (Palmae : Calamoideae) is the largest palm genus, with about 370 species in the world. China is the north verge of its natural distribution, 37 species and 26 varieties are reported in southwestern and southeastern China respectively. The high proportion of endemic species indicates that the natural distribution of Calamus shows intensely regional. Its flora of southwestern China distribution center is closely related to that of western Indo-Chinese Peninsula and South Asia, and the southeastern China distribution center is more closely related to that of eastern Indo-Chinese Peninsula.

Key words: Calamus

摘要： 省藤属( Calamus L .) 属棕榈科(Palmae ) 省藤亚科(Calamoideae) , 是棕榈科中最大的属, 约有370种。中国是其天然分布的北缘, 共有37 种26 变种, 种数约占世界的10% , 有西南和东南两大分布中心;省藤属的天然分布地域性较强, 各地区特有种比例较高; 在区系上, 西南分布中心和中南半岛西部、南亚的省藤区系都有较强的联系, 东南分布中心与中南半岛东部的联系更为紧密。

关键词: 省藤属, 区系, 中国FONT