湖南壳斗科栎属一新种——德夯栎  

Quercus dehangensis:a New Species of Quercus(Fagaceae)from Hunan Province,China

作　　者：向晓媚 王本忠 张籍元 张代贵[1] 陈功锡[1,3,4] XIANG Xiaomei;WANG Benzhong;ZHANG Jiyuan;ZHANG Daigui;CHEN Gongxi(College of Biology and Environmental Sciences, Jishou University, Jishou, Hunan 416000, China;Administration Bureau of Hunan Gaowangjie National Nature Reserve, Guzhang, Hunan 416300, China;School of Pharmacy, Jishou University, Jishou, Hunan 416000 China;Key Laboratory of Plant Resources Conservation and Utilization, Jishou University, Jishou, Hunan 416000, China)

机构地区：[1]吉首大学生物资源与环境科学学院,湖南吉首416000 [2]湖南高望界国家级自然保护区管理局,湖南古丈416300 [3]吉首大学药学院,湖南吉首416000 [4]吉首大学植物资源保护与利用湖南省高校重点实验室,湖南吉首416000

出　　处：《西北植物学报》2020年第10期1778-1783,共6页Acta Botanica Boreali-Occidentalia Sinica

基　　金：德夯风景名胜区植物调查项目(19DHK03)。

摘　　要：该文报道了采自湖南省湘西世界地质公园德夯园区壳斗科栎属一新种——德夯栎(Quercus dehangensis G.X.Chen,D.G.Zhang&B.Z.Wang),根据其壳斗小苞片覆瓦状排列而被归于栎属。德夯栎和巴东栎(Quercus engleriana Seem.)相近,但与巴东栎的区别在于前者植株通常3~5 m高,侧脉7~10对,小枝、叶柄及叶背被覆具鳞片的星状毛,托叶早落。根据IUCN红色名录标准,德夯栎濒危等级为极危(CR)。A new species of Quercus(Fagaceae),Quercas dehangensis G.X.Chen,D.G.Zhang&B.Z.Wang,sp.nov.from Dehang of Xiangxi World Geopark,Hunan Province of China,is described and illustrated.The new species belongs to the Quercus,with bracts imbricate.Q.dehangensis is most similar to Q.engleriana Seemen,but differs from the Q.engleriana in its plant usually 3-5 m tall,secondary veins 7-10 on each side of midvein,young branchlets,petiole and abaxial leaf blade are covered with scaled stellate hair and early deciduous stipules.According to IUCN Red List Categories and Criteria,the Q.dehangensis should be regarded as Critically Endangered(CR).

关 键 词：新种 栎属 德夯栎 形态学比较 分类 德夯 

分 类 号：Q949.736.3[生物学—植物学]