巴岳山-西温泉风景名胜区蕨类植物区系特征分析

Analysis of Fern Flora of Bayueshan—Western Springs Scenic Spot

在对巴岳山—西温泉风景名胜区蕨类植物初步调查基础上,分析其区系组成及特征.结果表明:①该区蕨类植物丰富,共有166种(含变种和变型),隶属37科,63属;②单种科、少种科、单种属和少种属较为丰富,充分说明该区蕨类植物区系地质年代起源古老,科和属分化程度较低;③优势科、属比较明显;④科、属分布区类型以热带分布为主的同时,温带分布类型也占一定比例;⑤该区蕨类植物区系与缙云山、红水河沟谷亲缘关系较近,而与金佛山的亲缘关系较远.

Fern flora composition and characteristics of fern of Bayueshan - Western Springs Scenic Spot were analysed after survey. The results were as follows： ① There were 166 species （including varieties） belonging to 63 genera and 37 families in the area. ② Large number of single family, single genera and ancient composition indicated the ancient flora origin. The fern＇s differentiation of this region was relatively 10w. ③ The dominant families and genera were obvious. ④ The characteristics of distribution types of fern took on obvious tropical nature, however, owning temperate nature to some extent. ⑤ The relationship of fern flora in this area was closer with Jinyun Mountain and Hongshuihe Valley than that in Jinfo Mountain.