Abstract: The origin and evolution of land plants was an important event in the history of earth life and has affected all other lives on the earth and global environment. During the past two decade, the new discoveries of fossil plants (microfossils and megafossils) from the mid-Ordovician through all Silurian to the lower Devonian improved knowledge of the origin of land plants, provided a time framework of the basal groups for the land plants and the early evolution diversity of vascular plants. Three new plant based epochs have been recognized. On the other hand, molecular sequence studies have provided insights into the phylogeny and early branches of land plants. A phylogenetic tree has been established by the joint of a study of comparative morphology and gene sequences. This paper summarizes recent advances and new knowledges, comments on the phylogenetic studies based on the cladistic analysis.

Key words: origin, evolution, land plant, vascular plant

摘要： 陆生植物的起源和演化是地球生命中的重大事件，它影响到地球上所有的其他生命和全球环境。在过去的20年中，从中奥陶世历经整个志留纪至早泥盆世的岩层中，化石植物(微化石和大化石)的新发现改变了人们对陆生植物起源的认识，并且为陆生植物和维管植物早期演化分异提供了基部类群分化的时间框架。据此人们识别出地史中的3个陆生植物的时代：始胚植物时代、始维管植物时代和真维管植物时代。另一方面，分子系统的研究使人们深入认识了植物的系统发育和早期分支。通过比较形态学研究和基因序列的共同努力，建立了植物系统发育树。总结了最近的进展和新的认识，评价了基于分支分析的系统发育研究。

关键词: 起源, 演化, 陆生植物, 维管植物