【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)。更多还原

【Abstract】 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).更多还原