丽水白云山种子植物区系的研究

白云山位于浙江省丽水市境内, 自然植被保存完好, 植物种类丰富, 据统计共有野生种子植物117 科、421 属、831 种。其中10 种以上的科有21 个, 498 种, 233 属, 构成了白云山植物区系的主体。本区系历史起源古老, 区域单型属与寡种属共计405 个, 占属总数的96.2%;我国特有分布贫乏, 珍稀濒危植物丰富;地理成分复杂, 可划分为14 个分布区类型13 个变型, 泛热带成分丰富, 温带成分优势明显, 属亚热带向暖温带过渡的地带。

A study on the flora of seed plants in Baiyun Mountain of Lishui

Baiyun Mountain is located in Lishui of Zhejiang Province. The natural vegetation of Baiyun Mountain is well preserved. Baiyun Mountain is rich in plant species, according to statistics, there are 831 species (including varieties) of plant have been discovered, belong to 421 genera and 117 families. 21 families belonging 233 genera and 498 species which have formed the majority of the plant flora in Baiyun Mountain. The origin of flora in Baiyunshan is very ancient, hence a large number of ancient and original species are well preserved, regional Monotypic genera and Oligotypic genera amounts to 405 in number, which constitutes 96.2 % of total number of genera.The area is rich in rare and endangered plants. The geographical components in Baiyun Mountain are various, 421 genera of the regional seed plant can be roughly divided into 14 areal types and 13 areal subtypes. The majority of plant flora is of temperate zone. This area is at the edge oftropical zone,which is quite near to the subtropical zone and temperate zone.