Nomenclator botanicus, seu, Synonymia plantarum universalis :enumerans ordine alphabetico nomina atque synonyma, tum generica tum specifica, et a Linnaeo et a recentioribus de re botanica scriptoribus plantis phanerogamis imposita - Steudel, Ernst Gottlieb, 1783 -1856 (typis et sumptibus J.G. Cottae, 1840)

Nomenclator botanicus, seu, Synonymia plantarum universalis :enumerans ordine alphabetico nomina atque synonyma, tum generica tum specifica, et a Linnaeo et a recentioribus de re botanica scriptoribus plantis phanerogamis imposita - Steudel, Ernst Gottlieb, 1783 -1856 (typis et sumptibus J.G. Cottae, 1841)

Nomenclator "Florae Danicae;" sive, Index systematicus et alphabeticus operis quod "Icones florae Danicae" inscribitur, cum enumeratione tabularum ordinem temporum habente, adiectis notis criticis - Lange, Joh., 1818 -1898 (Lehmann & Stage, 1887)

Nomenclaturae botanicae codex brevis maturus, sensu codicis emendati aux Lois de la nomenclature botanique de Paris de 1867; linguis internationalibus: anglica, gallica, germanica quoad nomina latina - Kuntze, Otto, 1843 -1907 (Deutsche Verlags-Anstalt, 1903)

Nomenclature of some plants associated with turfgrass management - United States. Agricultural Research Service. (U.S. Dept. of Agriculture, Agricultural Research Service, 1962)

Norfolk natterjack - Norfolk; Norwich Naturalists' Society. (Norfolk and Norwich Naturalists Society, 1994)

Norfolk natterjack - Norfolk; Norwich Naturalists' Society. (Norfolk and Norwich Naturalists Society, 2002)

Norfolk natterjack - Norfolk; Norwich Naturalists' Society. (Norfolk and Norwich Naturalists Society, 2009)

Normal and abnormal germination of grass-fruits - Zinn, Jacob, 1886 -1921 (Maine Agricultural Experiment Station, 1920)

Den norrländska florans : geografiska fördelning och invandringshistoria ; med särskild hänsyn till dess sydskandinaviskar arter - Andersson, Gunnar, 1865 -1928 (Almqvist & Wiksell, 1912)

North American fauna - U.S. Fish; Wildlife Service (Fish and Wildlife Service; for sale by the Supt. of Docs., U. S. Govt. Print. Off, 1900)

North American flora - New York Botanical Garden (New York Botanical Garden, 1920)

North American flora - New York Botanical Garden (New York Botanical Garden, 1931)

North American flora - New York Botanical Garden (New York Botanical Garden, 1939)

The North American Pyrenomycetes. A contribution to mycologic botany - Everhart, B. M. (Benjamin Matlack), 1818 -1904 (Ellis & Everhart, 1892)

North American species of Festuca - Piper, Charles V. (Charles Vancouver), 1867 -1926 (U.S. G.P.O, 1906)

North Wales; including its scenery, antiquities, customs, and some sketches of its natural history - Bingley, William, 1774 -1823 (T. N. Longman and O. Rees, 1804)

The Northern Flora; or, a description of the wild plants belonging to the north and east of Scotland, with an account of their places of growth and properties - Murray, Alexander (Adam, 1846)

Nota lepidopterologica - Societas Europaea Lepidopterologica (1997)

Nota lepidopterologica - Societas Europaea Lepidopterologica (2013)

Notes from the Royal Botanic Garden, Edinburgh - Royal Botanic Garden, Edinburgh. (H. M. Stationery Off, 1902)

Notes from the Royal Botanic Garden, Edinburgh - Royal Botanic Garden, Edinburgh. (H. M. Stationery Off, 1904)

Notes from the Royal Botanic Garden, Edinburgh - Royal Botanic Garden, Edinburgh. (H. M. Stationery Off, 1905)

Notes on distribution of vascular plants of Newfoundland, Labrador, and adjacent Quebec - Fernald, Merritt Lyndon, 1873 -1950 (1901)

Notes on National Forest range plants - United States. Forest Service. Office of Grazing Studies. (1914)

Notes on the flora of western Nova Scotia, 1921 - Fernald, Merritt Lyndon, 1873 -1950 (Gray Herbarium of Harvard University, 1922)

Notes on the natural history of common British animals and some of their foreign relations. Vertebrates - Hall, Kate M. (Adlard and Son, Bartholomew Press, 1913)

Notiser ur Sällskapets pro Fauna et Flora Fennica förhandlingar - Societas pro Fauna et Flora Fennica (Sällskapet pro Fauna et Flora Fennica, 1882)

Notiser ur Sällskapets pro Fauna et Flora Fennica förhandlingar - Societas pro Fauna et Flora Fennica (Sällskapet pro Fauna et Flora Fennica, 1871)

Notizblatt des Königl. Botanischen Gartens und Museums zu Berlin - Engler, Adolf, 1844 -1930 (In Commission bei Wilhelm Engelmann, 1901)

Notizblatt des Königl. Botanischen Gartens und Museums zu Berlin - Engler, Adolf, 1844 -1930 (In Commission bei Wilhelm Engelmann, 1902)

Nouvelle flore du Tarn et de la Haute-Garonne sous-pyrénéenne - Bel, Jules. (Amalric, 1888)

Nouvelle flore française, descriptions succinctes et rangées par tableaux dichotomiques des plantes qui croissent spontanément en France et de celles qu'on y cultive en grand ... Ouvrage suivi d'une table générale des especes et de leurs synonymes - Gillet, C.-C. (Claude-Casimir), 1806 -1896 (Garnier freres, 1883)

Nouvelle flore usuelle et médicale, ou, Histoire et description de tous les végétaux utiles, tant indigènes qu'exotiques, avec leur application à la médecine et à l'horticulture - Dupuis, Aristide, 1823 -1883 (Firmin Didot frères, 1853)

Nova acta Academiae Caesareae Leopoldino-Carolinae Germanicae Naturae Curiosorum - Kaiserlich Leopoldinisch-Carolinische Deutsche Akademie der Naturforscher (E. Blochmanni et Filii, 1920)

Nova acta Regiae Societatis Scientiarum Upsaliensis - Kungl. Vetenskaps-societeten i Uppsala. (Almqvist & Wiksells, 1839)

Nova acta Regiae Societatis Scientiarum Upsaliensis - Kungl. Vetenskaps-societeten i Uppsala. (Almqvist & Wiksells, 1850)

Nova acta Regiae Societatis Scientiarum Upsaliensis - Kungl. Vetenskaps-societeten i Uppsala. (Almqvist & Wiksells, 1914)

Nuova flora analitica d'Italia, contenente la descrizione delle piante vascolari indigene inselvatichite e largamente coltivate in Italia - Fiori, Adriano 1865 -1950 (Tipografia di M. Ricci, 1923)

Nya botaniska notiser ([A. Bonniers Förlag], 1851)

Nya botaniska notiser ([A. Bonniers Förlag], 1852)

Nya botaniska notiser ([A. Bonniers Förlag], 1855)

Nya botaniska notiser ([A. Bonniers Förlag], 1856)

Nyt magazin for naturvidenskaberne - Physiographiske forening i Christiania. (Johan Dahl, 1855)

Nyt magazin for naturvidenskaberne - Physiographiske forening i Christiania. (Johan Dahl, 1868)

Nyt magazin for naturvidenskaberne - Physiographiske forening i Christiania. (Johan Dahl, 1877)

Nyt magazin for naturvidenskaberne - Physiographiske forening i Christiania. (Johan Dahl, 1880)

Nyt magazin for naturvidenskaberne - Physiographiske forening i Christiania. (Johan Dahl, 1887)

Nyt magazin for naturvidenskaberne - Physiographiske forening i Christiania. (Johan Dahl, 1893)

Nyt magazin for naturvidenskaberne - Physiographiske forening i Christiania. (Johan Dahl, 1900)

Nyt magazin for naturvidenskaberne - Physiographiske forening i Christiania. (Johan Dahl, 1902)

Nyt magazin for naturvidenskaberne - Physiographiske forening i Christiania. (Johan Dahl, 1903)

Nyt magazin for naturvidenskaberne - Physiographiske forening i Christiania. (Johan Dahl, 1904)

Nyt magazin for naturvidenskaberne - Physiographiske forening i Christiania. (Johan Dahl, 1906)

Nyt magazin for naturvidenskaberne - Physiographiske forening i Christiania. (Johan Dahl, 1911)

Nyt magazin for naturvidenskaberne - Physiographiske forening i Christiania. (Johan Dahl, 1912)

Nyt magazin for naturvidenskaberne - Physiographiske forening i Christiania. (Johan Dahl, 1914)

Nyt magazin for naturvidenskaberne - Physiographiske forening i Christiania. (Johan Dahl, 1920)

The oat aphis - Davis, John J. (John June), 1885 -1965 (U.S. Dept. of Agriculture, 1914)

Observations sur la végétation de l'ile de Sitcha - Bongard, H. G. (Heinrich Gustav), 1786 -1839 (s.n, 1833)

Occasional papers of the California Academy of Sciences - California Academy of Sciences (California Academy of Sciences, 1975)

Oecology of plants : an introduction to the study of plant-communities - Vahl, M. (Martin), 1749 -1804 (Clarendon Press, 1909)

Oecology of plants : an introduction to the study of plant-communities - Warming, Eugenius, 1841 -1924 (Clarendon Press, 1909)

Oecology of plants; an introduction to the study of plant-communities - Balfour, Isaac Bayley, 1853 -1922 (Clarendon Press, 1909)

Oesterreichische botanische Zeitschrift (A. Skofitz, 1863)

Oesterreichische botanische Zeitschrift (A. Skofitz, 1865)

Oesterreichische botanische Zeitschrift (A. Skofitz, 1871)

Oesterreichische botanische Zeitschrift (A. Skofitz, 1873)

Oesterreichische botanische Zeitschrift (A. Skofitz, 1874)

Oesterreichische botanische Zeitschrift (A. Skofitz, 1875)

Oesterreichische botanische Zeitschrift (A. Skofitz, 1876)

Oesterreichische botanische Zeitschrift (A. Skofitz, 1877)

Oesterreichische botanische Zeitschrift (A. Skofitz, 1878)