【摘要】 云南共有轮藻植物５属４８种（包括变种和变型）．在种类组成中，丽藻属最多，轮藻属次之，其它３属的种类较少分布特点具有热带、亚热带性质；区系属于印度一马来西亚，但鸟巢藻属、拟丽藻属、松藻属的地理分布带有地中海沿岸区系的成分。云南轮藻某些种类在形态上存在的差异显示了系统发育的间断性，同时，它们在形态上所具有的一些共同点，反映了在其进化过程中的连续性．更多还原

【Abstract】 Charophytes in Yunnan totaled 5 genera covering 48 species (including varieties and forms). The Nitella among of 5 genera was an overwhelming majority, the Chara comes next, and the rest 3 were comparatively small quantity. Thier distributions Were mostly in the tropic and subtropic area in yunnan province, belonging toIndo-Malaysian flora, but the geograpic distribution of the Tolypela, Nitellopsis and Lychnothamnus possesses the elements of Mediterranean coastal flora. It was found that there were certain differences in the morphological character of some charophytes from Yunnan, which showed the discontinuity in their evolution. Simultaneously, some of their common features also reflected their continuity in the process of evolution.更多还原