Abstract: This paper deals with the origin and evolution of Litsea genera group (Laureae) in Lauraceae. It regarded that this group is originated at the southern part of Laurasia, northern part of Gondwana and the tropical coast area of Tethys sea not earlier than mid-Cretaceous. The pa-rallel evolution occurred in this natural genera group. The genera Litsea and Lindera, the nucleus of this genera group, are probably sympatrically originated from the common ancestor. The range from South China to Indo-Malaysia is probably the center of origin and speciation of these two genera, and from there they migrated into Tropical America and Australasia. The other genera of this genera group may be differentiated from this nucleus of the genera group.

Key words: Lauraceae

摘要： 论述了樟科木姜子属群的起源与演化，认为该属群起源于古北大陆南部和古南大陆北部，以及古地中海周围热带地区，起源时间不早于中白垩纪。这一自然属群明显存在着平行进化情况，其核心的木姜子属和山胡椒属极可能是同地起源于共同祖先，我国南部至印度马来西亚可能是这两属的起源和分化中心，并从这里向热带美洲及大洋洲扩散。其余的属可能是从这一核心演化出来。

关键词: 樟科, 木姜子属群, 起源, 演化