摘要
Abstract
The components of seed plants in Zhougong Mountain Forest Park are abundant and complex.There are 271 species of seed plants,belonging to 85 families,among which gymnosperms have 4 families,8 species,angiosperms have 81 families,263 species,dicotyledons have 70 families,207 species,and monocotyledons have 11 families,56 species.The floristic elements of families are composed of 10 types and 5 variation types.The dominant families are not plentiful.But the tropical distribution types have 39 families,accounting for 45.90% of the total family number in this area,and hold a little more dominant position.The origin of its flora is ancient.The monotypic and oligotypic families possess the absolute superiority with 74 families,making up 87.05% of the total family number in this region.Moreover,there are 6 rare endangered plants in the reserve,among which 2 species belong to national protection categories 1（NPC1）,3 species belong to NPC 2,and 1 species belongs to NPC 3.关键词
周公山/种子植物/区系分析Key words
Zhougong Mountain/Seed plant/Floristic analysis分类
农业科技
