Reducing the fern genus Dryopsis to Dryopteris and the systematics and nomenclature of Dryopteris subgenus Erythrovariae section Dryopsis (Dryopteridaceae) Author Zhang, Li-Bing text Phytotaxa 2012 2012-11-06 71 1 17 27 http://biotaxa.org/Phytotaxa/article/view/phytotaxa.71.1.4 journal article 10.11646/phytotaxa.71.1.4 1179-3163 5066337 5. Dryopteris dulongensis (S.K.Wu & X.Cheng) Li Bing Zhang , comb. nov. Basionym:— Ctenitis dulongensis Wu & Cheng (1985: 402 , pl. 3). Type : CHINA . Yunnan : Gongshan , Dulong Jiang (Taron), in silvis semperviritibus humidis, alt. 1700 m , Qinghai-Xizang Complex Exp. 82-9568 ( holotype , KUN ) . Homotypic synonym:— Dryopsis dulongensis (S.K.Wu & X.Cheng) S.Y. Dong (2001: 187) . This species is only known from the type locality. This species has been hypothesized as a hybrid between D. apiciflora and D. heterolaena (Dong & Christenhusz, in press).