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Aberystwyth University
Abraham Lincoln Presidential Library
Academia Canaria de las Ciencias
Academy of Natural Sciences of Drexel University, Library and Archives
African Conservation Centre
African Violet Society of America
Agriculture and Agri-Food Canada
AIT Forschungsgesellschaft mbH
Akademie Verlag
Alabama Academy of Science
Albany Museum
Albert Mann
Alberta Legislature Library
Allen County Public Library
Amateur Entomologists' Society
American Arachnological Society
American Association of Zoo Keepers
American Birding Association
American Bryological and Lichenological Society
American Daffodil Society
American Entomological Society
American Fern Society
American Iris Society
American Malacological Society
American Mosquito Control Association
American Museum of Natural History Library
American Ornithological Society
American Ornithologists' Union
Amphibian and Reptile Conservation
Amphipacifica Research Publications
Andrew Pollock
Anthea Wallhead
Ants of India
Arachnologische Gesellschaft
Archives of Ontario
Arkansas Native Plant Society
Arnold Arboretum of Harvard University
ASC - York University Libraries
Asiatic Herpetological Research Society & Chengdu Institute of Biology, Chinese Academy of Science
Association of Southeastern Biologists
Atlanta History Center, Kenan Research Center, Cherokee Garden Library
Auckland Shell Club
Auckland War Memorial Museum Tāmaki Paenga Hira
Australasian Native Orchid Society
Australasian Systematic Botany Society
Australian Biological Resources Study
Australian Coral Reef Society
Australian Garden History Society
Australian Institute of Marine Science
Australian Museum
Australian National Insect Collection
Australian Naturalists' Society
Australian Network for Plant Conservation
Aves Press Limited
Avicultural Society
Bailey-Matthews National Shell Museum
BB 2000 Ltd
Belfast Naturalists' Field Club
Belgian Malacological Society
Bentham-Moxon Trust
Berwickshire Naturalists’ Club
BHL Australia
BHL Blog
BHL SciELO
Biblioteca Conjunta de Ciencias de la Tierra, Instituto de Ciencias del Mar y Limnología, UNAM
Biblioteca de la Universidad de Sevilla
Biblioteca Digital del Real Jardín Botánico de Madrid
Biblioteca Ernesto de la Torre Villar
Biblioteca PIEB
Biblioteca, Instituto de Biología UNAM
Bibliothèque cantonale et universitaire - Lausanne
Bibliothèque interuniversitaire de santé (Paris)
Bibliothèque nationale de France
Biodiversity Heritage Library
Biodiversity Journal
Biological Museum, Lund University, Sweden
Biological Society of Washington
BioOne
BioStor
Board of the Botanic Gardens and State Herbarium, Adelaide
Board of Trustees, University of Illinois
Bombay Natural History Society
Booth Library, Eastern Illinois University
Boston College Libraries
Boston Public Library
Boston University Libraries
Botanical Research Institute of Texas
Botanical Society of Britain and Ireland
Bournemouth Natural Science Society
Brandeis University Libraries
Brigham Young University Hawaii, Joseph F. Smith Library
Brigham Young University-Idaho
Bristol Naturalists' Society
British Entomological and Natural History Society
British Micropalaeontological Society
British Ornithologists' Club
British Pteridological Society
British Trust for Entomology
Brock University
Brooklyn Botanic Garden
Brown University Library
Buffalo Ornithological Society
Bureau of Land Management
California Academy of Sciences
California Department of Fish and Game
California Native Plant Society: East Bay Chapter
California Native Plant Society: Kern County Chapter
California Native Plant Society: Mount Lassen Chapter
California State Library
Cambridge University Library
Canadian Museum of Nature Library / Bibliothèque du Musée canadien de la nature
Canadiana.org
Carnegie Institution for Science
Carnegie Museum of Natural History
Carol D. Allen
Carolina Bird Club
Cary Institute of Ecosystem Studies
Cherokee Garden Library, Kenan Research Center at the Atlanta History Center
Chesapeake Bay Foundation
Chicago Botanic Garden, Lenhardt Library
Christopher Parker
Claire T. Carney Library, UMass Dartmouth
Clemson University Libraries
Cleveland Museum of Natural History
Colorado Native Plant Society
Columbia University Libraries
Comisión Nacional para el Conocimiento y Uso de la Biodiversidad (CONABIO)
Commonwealth of Australia (Australian National Botanic Gardens)
Commonwealth of Australia (Geoscience Australia)
Conchologists of America, Inc (COA)
Confederated Salish & Kootenai Tribes of the Flathead Reservation, Montana
Conrad Christopher Labandeira
Consejo Superior de Investigaciones Científicas
Copyright held by individual article author(s).
Cornell Lab of Ornithology
Cornell University Library
David Harold Paisley
Delaware Center for the Inland Bays
Delaware Museum of Natural History Library
Delaware Museum of Natural History, Inc.
Delaware Native Plant Society
Denver Botanic Gardens
Denver Botanic Gardens Helen Fowler Library
Department of Malacology, The Academy of Natural Sciences of Philadelphia
Desert Botanical Garden
Desert Botanical Garden, Schilling Library
Deutsche Gartenbaubibliothek
Deutsche Ornithologen-Gesellschaft
Dorothy H. Hoover Library, Ontario College of Art & Design
Duke University Libraries
Dumbarton Oaks
Edinburgh Natural History Society
El Colegio de la Frontera Sur
Elizabethtown College
Emory University, Manuscript, Archives and Rare Book Library
Emory University, Pitts Theology Library
Emory University, Robert W. Woodruff Library
Emory University, Woodruff Health Sciences Center Library
Entomological Society of British Columbia
Entomological Society of Latvia
Entomological Society of Ontario
Entomological Society of Queensland
Entomological Society of Victoria
Environmental Services & Library Systems
Essex County Ornithological Club
Estate of František Nábělek
European Association of Zoos and Aquaria
European Journal of Taxonomy (EJT)
Evangelina Schwindt - Alejandro Bortolus
Expanding Access
Facultad de Ciencias, UNAM
FAO Regional Office for Africa
Field Museum of Natural History Library
Field Naturalists Club of Victoria
Fiona Gibson
Florida Academy of Sciences, Inc.
Florida Exotic Plant Pest Council and Southeast Exotic Plant Pest Council
Florida Ornithological Society
Fordham University Libraries
Francis A. Countway Library of Medicine
Friends of the National Zoo
Frost - York University Libraries
Geelong Field Naturalists Club
Geological Institute of Russian Academy of Sciences
Geological Society of Norfolk
Geological Survey Victoria
Georgia Botanical Society
Gillian Lord
Glasgow Natural History Society
Golden Gate Audubon Society
Gosselin, Michel
Government of Victoria, Australia
Great Barrier Reef Marine Park Authority
Gulf Coast Research Laboratory and the University of Southern Mississippi
Hardy Fern Foundation
Harold B. Lee Library
Harvard University
Harvard University Botany Libraries
Harvard University Herbaria
Harvard University, Museum of Comparative Zoology
Harvard University, Museum of Comparative Zoology, Ernst Mayr Library
Hawaii Botanical Society
Hills Orchid Publishing
Hindawi
Hisham K. El-Hennawy
History of Modern Biomedicine Research Group
Hopkins Marine Station of Stanford University
Hungarian Geological Society
Icewall One
Idaho Native Plant Society
Illinois Native Plant Society
Illinois Ornithological Society
Illinois State Academy of Science
Index of American Botanical Literature
Indiana Native Plant Society (INPS)
Informa Business Media, Inc.
Institute of Botany, Chinese Academy of Sciences
Instituto Butantan
Instituto de Biología UNAM
Instituto de Ciências Biológicas - Universidade Federal de Minas Gerais
Instituto de Ecología A.C.
Instituto de Ecología, UNAM
Instituto de Investigaciones José María Luis Mora
International Association of Plant Taxonomists (IAPT)
International Carnivorous Plant Society
International Centre of Insect Physiology and Ecology
International Commission on Zoological Nomenclature
International Congress of Entomology
International Hoya Association
International Ornithologists' Union
Internet Archive
Iowa Ornithologists' Union
IUCN Afrotheria Specialist Group
Jardín Botánico Nacional, Dr. Rafael María Moscoso
John Adams Library at the Boston Public Library
John Carter Brown Library
John Gilmore
Joint Committee on Taxation, US Congress
Joseph Palmer Knapp Library, UNC School of Government
Kathryn (Drechsler) Finnegan and Gregory Finnegan
Kelly Allred
Kentucky Academy of Science
Kentucky Ornithological Society, Inc.
Kentucky Society of Natural History
Kenya Wildlife Service
Keva North
King's College London, Foyle Special Collections Library
Környezetvédelmi és Vízügyi Minisztérium
KU Biodiversity Institute
Laboratorio de Plantas Vasculares, Facultad de Ciencias, UNAM
Lancaster County Historical Society
Law Library, University of North Carolina at Chapel Hill
Lehmann, Ingo
Leo Baeck Institute Archives
Lewis & Clark Community College / NGRREC
Library and Archives Canada - Bibliothèque et Archives Canada
Library of Congress
Library of the Marine Corps
Library of the Netherlands Entomological Society, Naturalis Biodiversity Center
Lincoln Financial Collection
Lincolnshire Naturalists' Union
Linnaean Society of New York
Linnean Society of New South Wales
Lloyd Library and Museum
London Natural History Society
London School of Hygiene & Tropical Medicine Library & Archives Service
Long Island Botanical Society
Long, Steven J.
Lunds Botaniska Förening
LYRASIS Members and Sloan Foundation
M E Braithwaite
Mantis Study Group
María de Lourdes Rico Arce
Maryland Entomological Society (MES)
Maryland Ornithological Society
MBLWHOI Library
McGill University Library
Michigan Botanical Club
Minnesota Native Plant Society
Missouri Botanical Garden, Peter H. Raven Library
Missouri Native Plant Society
MIT Libraries
Montana State Library
Morris Arboretum of the University of Pennsylvania
Morris Library, Southern Illinois University Carbondale
Mr. Stan Wood's Estate
Mugar Memorial Library, Boston University
Musée cantonal de zoologie, Lausanne
Museo de Historia Natural de Valparaíso
Museo Regionale di Scienze Naturali di Torino
Museu de Zoologia da USP
Museu Nacional
Museu Paraense Emílio Goeldi
Museum and Art Gallery of the Northern Territory
Museum and Institute of Zoology, Polish Academy of Sciences
Muséum d'histoire naturelle - Ville de Genève
Museum für Naturkunde, Berlin
Muséum national d'Histoire naturelle
Museum of Texas Tech University
Museum of Vertebrate Zoology Archives, University of California, Berkeley
Museum of Vertebrate Zoology, University of California, Berkeley
Museums Victoria
National Capital Botanical Gardens (Port Moresby, PNG)
National Library Board, Singapore
National Library of Medicine
National Library of Norway
National Library of Scotland
National Museum of Natural History, Smithsonian Institution
National Museums of Kenya
National University of Singapore Libraries
National Zoological Park
Native Plant Society of Oregon
Natur Cymru Ltd
Natural History Museum Library, London
Natural History Museum of Los Angeles County
Naturalis Biodiversity Center
Naturbruksskolornas Förening
Nature Kenya, East Africa Natural History Society
Naval Postgraduate School
NC History of Health Digital Collection
NCSU Libraries
Nebraska Ornithologists' Union
Nederlandse Entomologische Vereniging (Netherlands Entomological Society)
New College of California
New York Botanical Garden, LuEsther T. Mertz Library
New York Entomological Society
New York Public Library
New York Shell Club
New York State Museum
New York State Ornithological Association, Inc.
NIH Library
Nipissing University/Canadore College Libraries
Norfolk and Norwich Naturalists' Society
North American Mycological Association
North Carolina Museum of Natural Sciences
North Queensland Natural History Group
North Queensland Naturalists Club
Northeast Document Conservation Center (NEDCC)
Northeastern University, Snell Library
Northern California Botanists
Northern Territory Field Naturalists' Club
Northern Territory Herbarium
Northwest Horticultural Society
Nova Scotia Institute of Science
Nuttall Ornithological Club
Oak Spring Garden Foundation
Ohio Biological Survey
Ohio Coleopterist Society
Ontario Ministry of Natural Resources Library
Ontario Ministry of the Environment
Oregon Flora Project
Organization for Tropical Studies
Oriental Bird Club
Ornithological Society of Japan
Ornithological Society of New Zealand
Ornithological Society of the Middle East
Ottawa Field-Naturalists' Club
Overseas Development Administration
Pacific Coast Entomological Society
Pacific Seabird Group
Penn State University
Pennsylvania Horticultural Society
Pensoft Publishers
Perthshire Society of Natural Science
Peter Shaw Ashton
Phasmid Study Group
Philadelphia Museum of Art, Library
Phillips Academy, Oliver Wendell Holmes Library
Phillips Library at The Peabody Essex Museum
Phytologia
Prelinger Library
Princeton Theological Seminary Library
Public Library of Cincinnati and Hamilton County
Public.Resource.Org
Queen Victoria Museum and Art Gallery
Queen's University, W.D. Jordan Special Collections & Music Library
Queensland Herbarium
Queensland Museum
Raptor Research Foundation
Reading Natural History Society
Regis University
Research Library, The Getty Research Institute
Robert Blakemore
Robert Dale Kloppenburg
Roman Catholic Archdiocese of Toronto
Roosevelt Wild Life Station
Royal Botanic Garden Edinburgh
Royal Botanic Gardens Kew, Library, Art & Archives
Royal Botanic Gardens Victoria
Royal College of Physicians in Edinburgh
Royal College of Physicians, London
Royal College of Surgeons of England
Royal Ontario Museum
Royal Society of New South Wales
Royal Society of Queensland
Royal Society of Victoria
Royal Society of Western Australia
Rutgers University Libraries
Ryerson University Library Special Collections
Saint Louis Public Library
Saint Mary's College of California
San Diego Natural History Museum Research Library
San Diego Zoo Global Library & Archives
San Francisco Public Library
Scarborough Field Naturalists' Society
School of Government Library, University of North Carolina at Chapel Hill
School of Theology, Boston University
Scott - York University Libraries
Scottish Ornithologists' Club
Servants Of Knowledge
Singapore Botanic Gardens, National Parks Board Singapore
Smithsonian Environmental Research Center
Smithsonian Institution
Smithsonian Institution Archives
Smithsonian Institution Scholarly Press (SISP)
Smithsonian Libraries
Sociedad Científica Argentina
Sociedad Española de Malacología
Società dei Naturalisti in Napoli
Società Italiana di Malacologia
Societa Italiana di Scienze Naturali (SISN)
Società Paleontologica Italiana
Societas Europaea Lepidopterologica
Société Linnéenne de Bordeaux
Society of Ethnobiology
Somerville Public Library
Sonoma County Library
South African Institute for Aquatic Biodiversity
South African National Biodiversity Institute
South Australian Museum
Southern Appalachian Botanical Society
Southern California Academy of Sciences
Southern California Association of Marine Invertebrate Taxonomists
Southern California Botanists
Staatliches Museum für Naturkunde
State Library of Massachusetts
State Library of New South Wales
State Library of North Carolina
State Library of Pennsylvania
Sterling and Francine Clark Art Institute Library
Sue Halliwell
SUNY College of Environmental Science and Forestry
Sustainable History Monograph Pilot (SHMP)
Svenska Sydpolar-Expeditionen
Sweet Briar College
Tasmanian Field Naturalists Club
Tasmanian Museum and Art Gallery
Tennessee Native Plant Society
Tennessee Ornithological Society
Texas Academy of Science
Texas Ornithological Society
The African Bird Club
The Arboretum Foundation
The Arboretum Library at the Los Angeles County Arboretum and Botanic Garden
The Bancroft Library
The Coleopterists Society
The Department of Agriculture and Fisheries, Queensland
The Fossil Collectors' Association of Australasia
The Gesneriad Society
The International Lepidoptera Survey, LLC
The Johns Hopkins University Sheridan Libraries
The Lepidoptera Research Foundation, Inc.
The Lepidopterists' Society
The Malacological Society of Australasia
The Natural History Society of Maryland
The New York Academy of Medicine
The Newberry Library
The Peabody Essex Museum
The Royal Botanic Gardens and Domain Trust, New South Wales, Australia
The San Diego Shell Club, Inc.
The Trustees of the Natural History Museum, London
The University of Western Ontario, Western Archives
Theodore J. Papenfuss
Tisch Library
Toronto Public Library : North York Central
Toronto Public Library: Research and Reference Libraries
Torrey Botanical Society
Tower Hill Botanic Garden Library
Tropicalia
Trustees of the Royal Botanic Gardens, Kew
Tufts University
Tulane University
U.S. Department of Agriculture
U.S. Department of Agriculture, National Agricultural Library
U.S. Dept. of the Treasury, Treasury Library
U.S. Government Printing Office
UCL Library Services, University College London (UCL)
UCLA Library, Preservation Department
UMass Amherst Libraries
UNEP-WCMC, Cambridge
United States Geological Survey Libraries Program
Univ. of Mass Medical School, Lamar Soutter Library
Universal Digital Library
Universidad Autónoma Chapingo
Universidad Autónoma de Nuevo León
Universidad de Concepción
University Library Johann Christian Senckenberg
University Library, University of Illinois Urbana Champaign
University Library, University of North Carolina at Chapel Hill
University of Alberta
University of Alberta Library
University of Bristol
University of British Columbia Library
University of California
University of California Libraries
University of California, Davis Libraries
University of Connecticut Libraries
University of Florida, George A. Smathers Libraries
University of Florida/IFAS Center for Aquatic and Invasive Plants
University of Glasgow Library
University of Hawai'i Press
University of Illinois at Chicago
University of Leeds Library
University of Maryland, Baltimore Digital Archive
University of Maryland, College Park
University of Melbourne
University of Michigan
University of Nebraska- Lincoln
University of New Hampshire Library
University of North Carolina at Chapel Hill
University of Ottawa
University of Pennsylvania Libraries
University of Pittsburgh Library System
University of Pretoria, Library Services
University of Southampton
University of Southern California Digitization Services
University of Texas Libraries
University of Toronto
University of Toronto - Bora Laskin Law Library
University of Toronto - Cheng Yu Tung East Asian Library
University of Toronto - Earth Sciences Library (Noranda)
University of Toronto - Gerstein Science Information Centre
University of Toronto - Mathematical Sciences
University of Toronto - Mississauga
University of Toronto - Music
University of Toronto - OISE Library
University of Toronto - Petro Jacyk Central & East European Resource Centre
University of Toronto - Pontifical Institute of Medieval Studies
University of Toronto - Regis College Library
University of Toronto - Robarts Library
University of Toronto - Royal Ontario Museum Library & Archives
University of Toronto - St. Michael’s College (John M. Kelly Library)
University of Toronto - Thomas Fisher Rare Book Library
University of Toronto - Trinity College (John. W. Graham Library)
University of Toronto - Victoria University (Emmanuel College Library)
University of Washington Botanic Gardens
University of Washington Botanic Gardens, Elisabeth C. Miller Library
University of Western Ontario
Unknown
Vascular Plant Herbarium, School of Life Sciences, Arizona State University
Virginia Academy of Science
Virginia Herpetological Society
Virginia Museum of Natural History
Virginia Native Plant Society
Virginia Natural History Society
Vlaamse Vereniging voor Entomologie
Walter H. Adey and Dennis F. Farrier
Ward's Natural Science Establishment
Washington Academy of Sciences
Webster Family Library of Veterinary Medicine
Wellcome Library
Wellesley College Library
Welsh Ornithological Society
West African Ornithological Society
West Virginia University Libraries
Western Australian Herbarium
Western Australian Museum
Western Australian Naturalists’ Club (Inc.)
Western Carolina Botanical Club
Western Field Ornithologists
Western Society of Malacologists
Wikipedia
Wildlife Conservation Society
Williams College Libraries
Wilson Ornithological Society
Wiltshire Archaeological and Natural History Society
Wim Vader, University Museum of Tromsø, Norway
Winckley Press
Wisconsin Academy of Sciences, Arts and Letters
Wisconsin Entomological Society
World Amphipoda Database
Wyoming Native Plant Society
Xerces Society for Invertebrate Conservation
Yale Cushing-Whitney Medical Library
Yale Peabody Museum of Natural History
Yorkshire Naturalists' Union
Yorkshire Philosophical Society
Zoological Society of San Diego d/b/a San Diego Zoo Global
Zoologische Staatssammlung München
Zoologisches Forschungsmuseum Alexander Koenig
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