白河自然保护区种子植物区系特征

A Floristic Study of Seed Plants on Baihe Natural Reserve

在对四川白河自然保护区种子植物资源多次调查和大量标本采集、鉴定的基础上,对其种子植物的科属组成、分布区类型、区系特征等进行了统计和分析.表明:①保护区区系成分复杂,类型丰富;②优势科、属明显;③起源古老;④地理成分复杂;⑤具明显的温带性质;⑥具明显的过渡性质;⑦分化现象明显,特有属、种丰富.

Based on the statistics and analysis of areal-types of families, genera, species in the present flora in Baihe Natural Reserve, the floristic characteristic indicates as follows: (1) The floristic components are complex and taxa are abundant. (2) The dominant families, genera and species are prominent. (3) The origin of its flora is very ancient. (4) Its geographical components are complex. (5) Its flora shows an obvious temperate zone character. (6) It has evident transitional character. (7) It indicates obvious diferentiation. The endemic genera and species are abundant.