摘要
皖南齐云山区地处中亚热带 ,自然条件较为优越 ,蕨类植物丰富 ,初步统计显示 ,该山区共有蕨类植物 2 9科 ,5 4属 ,91种 (包括亚种和变种 ) ,区系综合系数为 - 0 .5 92 ,在相比较的7个山地区系中位居第五。通过对区系组成、性质和特征的分析 ,表明该区系地理成分复杂多样 ,属、种均可划分为 1 2种类型 (变型 ) ,具有较强的亚热带特性 ;在区系关系上 ,该区系与黄山、九华山、天目山、庐山区系关系较为密切 ,而与武夷山、秦岭。
Qiyun mountainous region,which locates at the south of Anhui Province,belongs to the mid subtropical area.Its natural conditions are relatively superior,its pteridophyte flora is abundant.There are 91 species (including varieties and subspecies) represented 54 genera and 29 families in this flora.Comparing with six florae,the integrative coefficient of this flora (-0.592) is the fifth.By analysis of the floras components and characteristics,it indicates that the types of area pattern are of diversity,the genera and species distribution patterns are classified into 12 types respectively.The flora has close affinity with subtropical flora.In the seven relevant mountainous regions,the floristic elements of this flora are similar to those of Mt.Huangshan,Mt.Jiuhuashan,Mt.Tianmushan and Mt.Lushan,but this flora has the closest relationship with that of Mt.Huangshan.
出处
《西北植物学报》
CAS
CSCD
2002年第5期1115-1121,共7页
Acta Botanica Boreali-Occidentalia Sinica
关键词
安徽
齐云山区
蕨类植物区系
Anhui Province
Qiyun mountainous region
pteridophyte flora
plant florarelationship
