Abstract: Yongan Taoyuandong is situated at the west-central part of Fujian.It is a popular danxia landform resort in Western Fujian.There exists 757 species of seed plants,which belong to 423 genera in 129 families.The flora of Taoyuandong possess the features of richness in species,complex composition,antiquated origin,obvious dominant genera and families,and the loss or fragmentation of flora habitat.

Key words: Taoyuandong, seed plants, flora, Yongan, Fujian Province

摘要： 永安桃源洞地处福建省中西部,是闽西著名的丹霞地貌风景区。调查结果表明,桃源洞现有种子植物129科423属757种。该区系具有种类丰富、成分复杂、起源古老、优势科属明显和区系生境丧失与片断化等特点。

关键词: 桃源洞, 种子植物, 区系, 福建永安