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Lu, N.T., Duan, Y.-F. and Zhang, L.-B. 2017.

Polystichum alluvium (subg. Haplopolystichum; Dryopteridaceae), a new cave species from Guizhou, China, with reference to new distribution records of P. leveillei

. Phytotaxa. 323, 1 (Sep. 2017), 88–92. DOI:https://doi.org/10.11646/phytotaxa.323.1.8.