松属的起源、演化及扩散  

Origin, Phylogeny and Spreading of Pinus

作　　者：陆素娟[1] 李乡旺[1] 

机构地区：[1]西南林学院资源学院,云南昆明650224

出　　处：《西北林学院学报》1999年第3期1-5,共5页Journal of Northwest Forestry University

摘　　要：在松属的系统演化、化石历史和现代分布研究的基础上，讨论了松属的起源、演化和扩散问题。松属的现代分布中心在北美洲，但原始类群主要集中在中国西南—越南一带，康滇古陆晚三叠纪地层发现了最早的松属孢粉化石，因而这一地区是松属的起源地，起源时间为三叠纪。起源后向西通过地中海区到达欧洲、北美，向东北穿过白令陆桥到达北美，向南到达印度尼西亚，向北到达西伯利亚和北极地区。Origin,phylogeny and spreading of Pinus were discussed based on studies of phylogeny,fossil history and modern distributionis of Pinus. The centre of distribution is in North America.The original taxa major gathers in the region of southwest of China-Vietnam.The most early pollens fossils of Pinus have been discovered in the stratum of late Triassic in the ancient Sikang-Yunnan tableand. This genus may be originated in the region of southwest of China-Vitenam.Original time of Pinus was suggested in Triassic based on the fossil history of Pinus.From which they spread out.extending westward through Tethyan region into Europe,North America,extending northeastward across the Asia-Bering land brigdge into North America,extending sorthward into Indonesia,extending,northward into Siberia and the Arctic region.

关 键 词：松属 起源 演化 扩散 

分 类 号：Q949.665[生物学—植物学]