[1]
Zhang, L.-B., Duan, Y.-F. and Kropf, M. 2019.

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

. Phytotaxa. 404, 6 (May 2019), 209–230. DOI:https://doi.org/10.11646/phytotaxa.404.6.1.