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Still Image 933 Dataset 143 Text 27 Other/Unknown Material 17 Article in Journal/Newspaper 11 Bachelor Thesis 1 see all ...

Occdownload Gbif.Org 140 W. H. Wagner 50 Hansford T. Shacklette 46 L. J. Cole 43 W. J. Cody 31 W. S. Benninghoff 30 C. O. Erlanson 29 Louis H. Jordal 28 Carl O. Grassl 24 Ruth B. (Alford) MacFarlane 20 Sten Ahlner 19 Stanwyn G. Shetler 15 William Palmer 14 M. J. Oldham 13 Naugolnykh, Serge V. 13 Paul DeBenedictis 13 Faurie 12 W. Eyerdam 12 W. K. W. Baldwin 12 Allison W. Cusick 11 Joan H. Wilce 10 Philip Dowell 10 Robert S. Sigafoos 9 Walter N. Koelz 9 Andreas Gygax 8 Gerhart Wagner 8 Konrad Lauber 8 Maximilian G. Duman 8 David Wagner 7 Stanwyn G. Shelter 7 see all ...

Polypodiopsida 976 Plantae 973 Polypodiales 440 Equisetaceae 253 Equisetales 253 Equisetum 251 Ophioglossaceae 243 Ophioglossales 243 Botrychium 231 biodiversity 144 GBIF 141 species occurrences 141 Dryopteridaceae 121 Dryopteris 106 Cystopteridaceae 105 Woodsiaceae 83 Woodsia 81 Cystopteris 72 Tracheophyta 52 Biodiversity 47 Taxonomy 47 Athyriaceae 42 Gymnocarpium 35 Athyrium 32 Thelypteridaceae 25 Aspleniaceae 23 Asplenium 21 Pteridaceae 17 Phegopteris 16 Cyatheales 13 see all ...

University of Michigan: Digital Collections 921 DataCite Metadata Store (German National Library of Science and Technology) 179 Zenodo 18 Directory of Open Access Journals: DOAJ Articles 2 Universidad Complutense de Madrid (UCM): E-Prints Complutense 2 BioOne Online Journals 1 CONICET Digital (Consejo Nacional de Investigaciones Científicas y Técnicas) 1 CyberLeninka (Scientific Electronic Library) 1 Duke University Libraries: DukeSpace 1 Magnolia press 1 Pensoft Publishers 1 PubMed Central (PMC) 1 Springer Nature (via Crossref) 1 Universidad Complutense de Madrid (UCM): Revistas Científicas Complutenses 1 Universidade Estadual Paulista São Paulo: Repositório Institucional UNESP 1 see all ...

Canada 376 Antarctic 116 Alta 103 Argentino 98 Chapel Hill 97 Yukon 89 New Zealand 86 Baja 85 Queensland 82 Northwest Territories 80 San Juan 78 Austin 77 Norway 75 Fukushima 73 Greenland 73 Indian 70 Argentina 69 Long Beach 64 Pacific 59 Tromsø 59 Black Rock 58 Theodore 55 Duende 54 Newfoundland 53 De la Costa 51 Medina 49 Tula 49 Tigre 40 Uruguay 40 Arctic 38 see all ...

unknown 1,116 English 12 Spanish 3 Estonian 1 see all ...

Alaska 259 Botrychium lunaria 192 Antarc* 142 Antarctic 116 Australian Antarctic Division 95 Yukon 89 Northwest Territories 80 Greenland 73 Newfoundland 71 Antarctica 65 Tromsø 59 Macquarie Island 54 Woodsia glabella 51 Arctic 38 Siberia 28 Nunavut 27 Botrychium boreale 25 Cockburn Island 25 Subarctic 25 north slope 21 Attu 19 Alaska North Slope 18 Great Bear Lake 17 glacier 17 karelia* 17 Beaver Creek 16 Sakhalin 16 Asplenium adulterinum 15 Hudson Bay 15 Kamchatka 15 see all ...