卧龙自然保护区种子植物区系研究

Floral Composition of Seed Plants in Wolong Nature Reserve

摘要:

卧龙自然保护区有种子植物144科658属1648种及81变种，其中裸子植物8科17属33种。植物区系起源古老，孑遗植物、原始类群和中国特有类群丰富；单型或单种的科属众多，占总属数的58.97%；20种以上的科和含10种以上的属分别占总科数和总属数的14.58%和4.25%，它们构成卧龙种子植物区系的主体；该区植物区系具有热带起源，温带分布的双重特征。

Abstract:

In Wolong Nature Reserve, there are 1 648 species and 81 varieties of seed plants belonging to 658 genera and 144 families. Thirty-three species represent 17 genera and 8 families of gymnosperms. The flora of Wolong is old and rich in oligotypic families and genera (58.97%). The flora is composed mainly of the families (> 20 species) and the genera (>10 species) which amount to 14.58% of the total families and 4.25% of the total genera, respectively. It is characterized by tropical origin and temperate.