广东和平黄石坳自然保护区种子植物区系

The spermatophytic flora of Huangshi'ao Nature Reserve in Heping of Guangdong Province

黄石坳自然保护区位于广东省和平县境内,地处北回归线以北。有野生维管植物193科659属1270种(含变种),其中种子植物有161科598属1161种。植物区系的表征科为壳斗科、金缕梅科、樟科和山茶科等,为典型的亚热带植物区系性质。区系地理分布区类型多样,以热带、亚热带分布区类型为主,同时掺杂有温带的成分。与广东省内邻近植物区系相比,属种相似性最大的是始兴车八岭,而科级水平上关系最密切的是鼎湖山。

The Huangshi＇ao Nature Reserve is located at Heping County,Guangdong Province.There are 1 270 species of wild vascular plants in this area,belonging to 193 families and 659 genera,among them,161 families,598 genera,and 1 161 species are spermatophyte.The typical families of flora are Fagaceae,Hamamelidaceae,Lauraceae,and Theaceae,etc.There are many geological distribution patterns in this flora.The main areal patterns are tropical and subtropical,and some of the temperate elements also appear in the area.Comparing to some neighbor flora in Guangdong Province,the flora of Chebaling in Shixing County has the highest relationship with the flora of Huangshi＇ao for species and genera composition,but the flora of Dinghushan has the highest similarity with Huangshi＇ao on family grade.