Polystichum

Zhang, Li-Bing, 2012, Taxonomic and nomenclatural notes on the fern genus Polystichum (Dryopteridaceae) in China, Phytotaxa 60 (1), pp. 57-60 : 58-59

Polystichum × rupestris P.S.Wang & Li Bing Zhang, comb. & nom. nov.

Replaced synonym:— Cyrtogonellum × rupicola Wang & Wang (2001: 242 , f. 61: 2). Type:— CHINA. Guizhou: Anshun Shi, Taoduizhai, 1460 m, among crevices of limestone walls under forest, 22 March 1978, P. S. Wang & Y. Y. Yuan 75489 (holotype HGSA!, isotype PYU!).

When this hybrid is transferred to Polystichum , the original epithet is blocked by Polystichum rupicola Ching ex Chu (1992: 51) .

This hybrid, possibly between P. fraxinellum (Christ) Diels and P. minimum , occurs in central Guizhou (Anshun), China.