Gymnocarpium
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- Cystopteridaceae 1. Gymnocarpium
- Gymnocarpium Dryopteris
- Common Ferns and Allies of New Brunswick
- PTERIDOLOGIST 2017 Contents: Volume 6 Part 4, 2017
- Proceedings of the Indiana Academy of Science
- That of the Six Species of the Genus Gymnocarpium in the World, Two Have a Wide Circumboreal Range, G
- Gymnocarpium Robertianum (Hoffm.) Newm
- Limestone Oak Fern (Gymnocarpium Robertianum)
- Ferns of the National Forests in Alaska
- Statement of Need and Reasonableness: August 10, 2012
- Hardy Fern Foundation Evaluation September 2019
- Region 2 Sensitive Species Evaluation Form
- Identifying Species and Natural Communities in Pennsylvania
- Phylogeny of the North Asian Cystopteridaceae (Polypodiopsida) Based on Trng-R Intergenic Spacer
- Thelypteridaceae (PDF)
- A Plastid Phylogeny of the Cosmopolitan Fern
- Cnvc00003 En
- Vascular Flora and Macroscopic Fauna on the Fernow Experimental Forest