浙江省台州市种子植物区系分析

台州市种子植物丰富,据统计有野生种子植物150科、784属、1892种(含种下分类群),其中裸子植物6科、12属、16种,被子植物144科、772属、1876种。优势科明显,其中10种以上的科有45个,含526属、1453种,分别占总属数、总种数的67.09%、76.80%。本区系历史悠久,起源古老,小属和极小属共707个,占总属数的90.18%。科的分布区类型以热带、亚热带分布最多,其次是世界分布,第3是温带分布。属的分布区类型可划分为14类,以温带性成分为主,也兼有相当比例的热带性成分,具有亚热带特性。地理成分复杂,与世界各地联系广泛。该地区有中国特有属14属,列为国家首批保护的珍稀植物20种。

Floristic analysis on seed plants of Taizhou in Zhejiang Province

The seed plants in Taizhou City are very rich.There are 1 892 species(including subspecies)of wild seed plants belonging to 150 families and 784 genera.Among which,Gymnosperms have 6 families,12 genera and 16 species while Angiosperms have 144 families,12 genera and 16 species.The dominant families are distinct and there are 45 families with more than 10 species,belonging to 526 genera and 1 453 species,which account for 67.09% and 76.80% in total genera and total species,respectively.The floristic history is centuries-old and the origin is ancient.707 genera belong to oligotypic genera and the smallest genera,which account for 90.18% in total genera.At the family level,the tropic type and subtropic type were dominant,the second is cosmopolitan type and the third is temperate type.At the genus level,the areal types can be divided into 14 kinds.The temperate type is dominant and there is also quite proportion of tropic type with tropic characteristics.The geographical components are multiform and widely related to the world.The element of endemic species to China has 14 genera,among which,20 species belong to the first national protection categories.