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Arachniodes rigidissima (Hook.) Ching
Family: Dryopteridaceae [Byrsopteris rigidissima (Hook.) Morton, moreDryopteris rigidissima (Hook.) C. Chr., Nephrodium denticulatum subsp. rigidissimum (Hook.) Jenman, Nephrodium denticulatum var. rigidissimum Hook., Polystichum denticulatum var. rigidissima (Hook.) Hieron.]	Resources
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The PCC, and this data portal, were made possible by funding from the National Science Foundation’s Advancing Digitization of Biological Collections (ADBC) program, grant numbers 1802504, 1802352, 1802134, 1802033, 1802270, 1802255, 1802239, 1802446, 1802305.

The pteridoportal taxonomic thesaurus is based on the Checklist of Ferns and Lycophytes of the World, generously provided by Michael Hassler.