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Christella clarkei (Bedd.) Holtt., B. Nayar & Kaur
Family: Thelypteridaceae [Aspidium artinexum (C. B. Cl.) C. Chr., moreChristella cylindrothrix (Rosenst.) Holtt., Cyclosorus cylindrothrix (Rosenst.) Ching, Cyclosorus parasiticus var. cylindrothrix (Rosenst.) Tardieu & C.Chr., Dryopteris assamica Rosenst., Dryopteris cylindrothrix Rosenst., Nephrodium artinexum C. B. Cl., Nephrodium parasiticum var. aureum (C. B. Cl.) Bedd., Pleocnemia clarkei Bedd., Tectaria artinexa (C. B. Cl.) Ching, Tectaria clarkei (Bedd.) C. Chr., Thelypteris clarkei (Bedd.) C. Reed, Thelypteris cylindrothrix (Rosenst.) Iwatsuki]	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.