The New Mexico botanist - New Mexico State University. Cooperative Extension Service. (Range Science Herbarium and Cooperative Extension Service, 2010)

The New Mexico botanist - New Mexico State University. Cooperative Extension Service. (Range Science Herbarium and Cooperative Extension Service, 2012)

The New Mexico botanist - New Mexico State University. Cooperative Extension Service. (Range Science Herbarium and Cooperative Extension Service, 2020)

News - Indiana Native Plant; Wildflower Society. (Indiana Native Plant and Wildflower Society, 1994)

Newsletter - Colorado Native Plant Society. (The Society, 1984)

Newsletter - Hawaiian Botanical Society - Hawaiian Botanical Society. (The Society, 1979)

Newsletter - Hawaiian Botanical Society - Hawaiian Botanical Society. (The Society, 1987)

Newsletter - Hawaiian Botanical Society - Hawaiian Botanical Society. (The Society, 1996)

Nomenclator botanicus. Nominum ad finem anni 1858 publici juris factorum, classes, ordines, tribus, familias, divisiones, genera, subgenera vel sectiones designatium enumeratio alphabetica. Adjectis auctoribus, temporibus, locis systematicis, apud varios, notis literariis atque etymologicis et synonymis - Pfeiffer, Louis (Ludwig Georg Karl), 1805 -1877 (Sumptibus T. Fischeri, 1873)

Nomenclature of plants; a text for the application by the case method of the International code of botanical nomenclature - St. John, Harold, 1892 -1991 (Ronald Press Co, 1958)

North Queensland Naturalists Club - North Queensland Naturalists' Club. (North Queensland Naturalists Club, 1996)

Northern Territory botanical bulletin - Australia. Department of the Northern Territory. Animal Industry; Agriculture Branch. (Animal Industry and Agriculture Branch, Dept. of Northern Australia, 1975)

Northern Territory botanical bulletin - Australia. Department of the Northern Territory. Animal Industry; Agriculture Branch. (Animal Industry and Agriculture Branch, Dept. of Northern Australia, 1981)

Northern Territory botanical bulletin - Australia. Department of the Northern Territory. Animal Industry; Agriculture Branch. (Animal Industry and Agriculture Branch, Dept. of Northern Australia, 1989)

Northern Territory botanical bulletin - Australia. Department of the Northern Territory. Animal Industry; Agriculture Branch. (Animal Industry and Agriculture Branch, Dept. of Northern Australia, 1992)

Northern Territory Naturalist - Northern Territory Field Naturalists' Club (, Northern Territory Field Naturalists' Club, 2007)

Northwest flora - Rigg, George B. (George Burton) (University bookstore, 1912)

Northwest Montana Libby/Hungry Horse Dams wildlife mitigation : Columbian sharp-tailed grouse : final report - Montana. Department of Fish, Wildlife,; Parks (U.S. Dept. of Energy, Bonneville Power Administration, Division of Fish and Wildlife, 1992)

Nota lepidopterologica - Societas Europaea Lepidopterologica (1997)

Nota lepidopterologica - Societas Europaea Lepidopterologica (2001)

Nota lepidopterologica - Societas Europaea Lepidopterologica (2002)

Nota lepidopterologica - Societas Europaea Lepidopterologica (2005)

Nota lepidopterologica - Societas Europaea Lepidopterologica (2007)

Nota lepidopterologica - Societas Europaea Lepidopterologica (2008)

Nota lepidopterologica - Societas Europaea Lepidopterologica (2010)

Nota lepidopterologica - Societas Europaea Lepidopterologica (2011)

Nota lepidopterologica - Societas Europaea Lepidopterologica (2013)

Nota lepidopterologica - Societas Europaea Lepidopterologica (2014)

Notes on the distribution of Pennsylvania plants : based on specimens in the Carnegie Museum of Natural History herbarium - Carnegie Museum of Natural History (Carnegie Museum of Natural History, 1989)

Novon a journal of botanical nomenclature from the Missouri Botanical Garden - Missouri Botanical Garden. (Missouri Botanical Garden, 1995)

Novon a journal of botanical nomenclature from the Missouri Botanical Garden - Missouri Botanical Garden. (Missouri Botanical Garden, 1998)

Novon a journal of botanical nomenclature from the Missouri Botanical Garden - Missouri Botanical Garden. (Missouri Botanical Garden, 1999)

Novon a journal of botanical nomenclature from the Missouri Botanical Garden - Missouri Botanical Garden. (Missouri Botanical Garden, 2005)

Novon a journal of botanical nomenclature from the Missouri Botanical Garden - Missouri Botanical Garden. (Missouri Botanical Garden, 2008)

Novon a journal of botanical nomenclature from the Missouri Botanical Garden - Missouri Botanical Garden. (Missouri Botanical Garden, 2010)

Novon a journal of botanical nomenclature from the Missouri Botanical Garden - Missouri Botanical Garden. (Missouri Botanical Garden, 2017)

Nutrition and foraging ecology of the desert tortoise : FY 1990 annual report - DeFalco, Lesley A. (U.S. Fish and Wildlife Service, National Ecology Research Center, 1991)

Nuytsia: journal of the Western Australian Herbarium - Western Australia. Department of Agriculture (Department of Biodiversity, Conservation and Attractions, 1980)

Nuytsia: journal of the Western Australian Herbarium - Western Australia. Department of Agriculture (Department of Biodiversity, Conservation and Attractions, 1998)

Nuytsia: journal of the Western Australian Herbarium - Western Australia. Department of Agriculture (Department of Biodiversity, Conservation and Attractions, 1999)

Nuytsia: journal of the Western Australian Herbarium - Western Australia. Department of Agriculture (Department of Biodiversity, Conservation and Attractions, 2015)

Nuytsia: journal of the Western Australian Herbarium - Western Australia. Department of Agriculture (Department of Biodiversity, Conservation and Attractions, 2018)

Nuytsia: journal of the Western Australian Herbarium - Western Australia. Department of Agriculture (Department of Biodiversity, Conservation and Attractions, 2019)

Nuytsia: journal of the Western Australian Herbarium - Western Australia. Department of Agriculture (Department of Biodiversity, Conservation and Attractions, 2021)

Nzayilu N'ti : Guide des arbres et arbustes de la région de Kinshasa - Brazzaville - Robbrecht, Elmar (1993)

Observing, photographing, and collecting plants - Illinois. Natural History Survey Division (Illinois Natural History Survey, 1980)

Occasional papers - Texas Tech University. Museum, (The Museum, 2001)

Ohio Biological Survey notes - Ohio Biological Survey. (Ohio Biological Survey, 2015)

Ohio Biological Survey notes - Ohio Biological Survey. (Ohio Biological Survey, 2017)

Ohio Biological Survey notes - Ohio Biological Survey. (Ohio Biological Survey, 2019)

Les Ombellifères : contributions pluridisciplinaires à la systématique : actes du 2e Symposium International sur les Ombellifères, Centre Universitaire de Perpignan, 18-21 mai 1977 - Cauwet-Marc, A.-M. (Anne-Marie) (Missouri Botanical Garden, 1977)

The onion (ICAR-Directorate of Knowledge Management in Agriculture, Indian Council of Agricultural Research, 2015)

The Orchadian - Australasian Native Orchid Society (The Society, 1994)

Oréades - Instituto de Ciências Biológicas da UFMG. Departamento de Botânica. (Departamento de Botânica, U.F.M.G, 1981)

Oregon flora newsletter - Oregon State University. Department of Botany; Plant Pathology. (Oregon Flora Project, Dept. of Botany & Plant Pathology, Oregon State University, 1997)

Oregon flora newsletter - Oregon State University. Department of Botany; Plant Pathology. (Oregon Flora Project, Dept. of Botany & Plant Pathology, Oregon State University, 1999)

Oregon flora newsletter - Oregon State University. Department of Botany; Plant Pathology. (Oregon Flora Project, Dept. of Botany & Plant Pathology, Oregon State University, 2001)

Oregon flora newsletter - Oregon State University. Department of Botany; Plant Pathology. (Oregon Flora Project, Dept. of Botany & Plant Pathology, Oregon State University, 2007)

Pacific Northwest Rivers Study : final report, Montana - Decker-Hess, Janet. ([Montana Dept. of Fish, Wildlife, and Parks, 1988)

Palaeontographica Americana - Paleontological Research Institution (Ithaca, N.Y.) (Paleontological Research Institution, 1994)

Paleobotany and biogeography : a festschrift for Alan Graham in his 80th year - Raven, Peter H (Missouri Botanical Garden, 2014)

[Pamphlets on agriculture in Guam] (s.n, 1905)

Pamphlets on forestry. Grazing (1900)

Pamphlets on silviculture (1899)

The Pan-Pacific entomologist - Van Duzee, Edward P. (Edward Payson), 1861 -1940 (Pacific Coast Entomological Society, 1990)

The Pan-Pacific entomologist - Van Duzee, Edward P. (Edward Payson), 1861 -1940 (Pacific Coast Entomological Society, 1992)

The Pan-Pacific entomologist - Van Duzee, Edward P. (Edward Payson), 1861 -1940 (Pacific Coast Entomological Society, 1997)

Part I. The living flora of West Virginia - Millspaugh, Charles Frederick, 1854 -1923 (Wheeling news litho. co, 1913)

Paxton's Botanical dictionary; comprising the names, history, and culture of all plants known in Britain; with a full explanation of technical terms. New ed. including all the new plants up to the present year - Paxton, Joseph, Sir, 1803 -1865 (Bradbury, Evans, & co, 1868)

Peninsula Field Naturalists' Club Newsletter - Peninsula Field Naturalists' Club (Peninsula Field Naturalists' Club, 2020)

Perú: Cordillera Escalera-Loreto - Stotz, Douglas F. (Douglas Forrester), 1956 - (The Field Museum, Science and Education, 2014)

Peru : Ere-Campuya-Algodón - Field Museum of Natural History. (The Field Museum, Science and Education, 2013)

Perú, Medio Putumayo-Algodón - Stotz, Douglas F. (Douglas Forrester), 1956 - (Field Museum of Natural History, 2016)

Perú : Tapiche-Blanco - Field Museum of Natural History. (The Field Museum, 2015)

Phegea - Vlaamse Vereniging voor Entomologie. (Vlaamse Vereniging voor Entomologie, 1993)

Phegea - Vlaamse Vereniging voor Entomologie. (Vlaamse Vereniging voor Entomologie, 1997)

Phegea - Vlaamse Vereniging voor Entomologie. (Vlaamse Vereniging voor Entomologie, 2009)

Phegea - Vlaamse Vereniging voor Entomologie. (Vlaamse Vereniging voor Entomologie, 2011)