Abstract: The flora of seed plants in Longhushan Nature Reserve in Guangxi was analyzed in this paper.There are 851 species, which belong to 536 genera in 136 families in this reserve.At family level, the proportion of the widespresa type is 25.0%, the tropic type is 59.6%, and the temperate type is 15.4%.At genus level, the proportion of the tropic type is 80.6%, the temperate type is 18.4%, and the endemic to China type is 1.0%.The flora of seed plants in Longhushan Nature Reserve shows clear characteristics of tropic and Karst flora.It has the features of richness in species.

Key words: seed plants, flora, Longhushan Nature Reserve, Guangxi Province

摘要： 本文对广西龙虎山自然保护区种子植物区系进行分析。龙虎山有野生种子植物851种,隶属136科536属。龙虎山区系世界分布科占25.0%,热带分布科占59.6%,温带分布科占15.4%。热带分布占本区系总属数的80.6%;温带分布占本区系总属数的18.4%,中国特有分布属占1.0%。龙虎山种子植物区系具有明显的热带性质和岩溶区系性质,特有现象较丰富。

关键词: 种子植物, 区系, 龙虎山自然保护区, 广西