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Eight new species of the fern genus Polystichum (subg. Haplopolystichum; Dryopteridaceae) from limestone caves in Guizhou, China

. Phytotaxa [Internet]. 2019 May 24 [cited 2025 Dec. 6];404(6):209–230. Available from: https://phytotaxa.mapress.com/pt/article/view/phytotaxa.404.6.1