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)

Nomenclator zoologicus : continens nomina systematica generum animalium tam viventium quam fossilium, secundum ordinem alphabeticum disposita, adjectis auctoribus, libris, in quibus reperiuntur, anno editionis, etymologia et familiis, ad quas pertinent, in singulis classibus - Agassiz, Louis, 1807 -1873 (Jent et Gassmann, 1842)

Nomenclatoris zoologici index universalis : continens nomina systematica classium, ordinum, familiarum et generum animalium omnium ... homonymiis plantarum - Agassiz, Louis, 1807 -1873 (Sumptibus Jent et Gassman, 1848)

North American botany; comprising the native and common cultivated plants, north of Mexico. Genera arranged according to the artificial and natural methods - Eaton, Amos, 1776 -1842 (E. Gates, 1840)

North American flora - New York Botanical Garden (New York Botanical Garden, 1937)

North American flora - New York Botanical Garden (New York Botanical Garden, 1910)

North American flora - New York Botanical Garden (New York Botanical Garden, 1922)

North American flora - New York Botanical Garden (New York Botanical Garden, 1907)

North American flora - New York Botanical Garden (New York Botanical Garden, 1912)

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

North American flora - New York Botanical Garden (New York Botanical Garden, 1921)

North American flora - New York Botanical Garden (New York Botanical Garden, 1914)

North American flora - New York Botanical Garden (New York Botanical Garden, 1917)

North American flora - New York Botanical Garden (New York Botanical Garden, 1924)

North American flora - New York Botanical Garden (New York Botanical Garden, 1932)

North American flora - New York Botanical Garden (New York Botanical Garden, 1923)

North American flora - New York Botanical Garden (New York Botanical Garden, 1909)

North American flora - New York Botanical Garden (New York Botanical Garden, 1915)

North American flora - New York Botanical Garden (New York Botanical Garden, 1916)

North American flora - New York Botanical Garden (New York Botanical Garden, 1918)

North American flora - New York Botanical Garden (New York Botanical Garden, 1928)

North American flora - New York Botanical Garden (New York Botanical Garden, 1919)

North American flora - New York Botanical Garden (New York Botanical Garden, 1911)

North American flora - New York Botanical Garden (New York Botanical Garden, 1944)

North American flora - New York Botanical Garden (New York Botanical Garden, 1938)

North American Flora （vol.10 Part1-5） - Willtam Alphonso Murrill (THE NEW YORK BOTANTCAL GARDEN, 1914)

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

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)

Notizblatt des Königl. Botanischen Gartens und Museums zu Berlin - Engler, Adolf, 1844 -1930 (In Commission bei Wilhelm Engelmann, 1897)

Notizblatt des Königl. Botanischen Gartens und Museums zu Berlin - Engler, Adolf, 1844 -1930 (In Commission bei Wilhelm Engelmann, 1900)

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

Notizblatt des Königl. Botanischen Gartens und Museums zu Berlin - Engler, Adolf, 1844 -1930 (In Commission bei Wilhelm Engelmann, 1903)

Notizen aus dem Gebiete der Natur- und Heilkunde (G.H.S. pr. Landes-Industrie-Comptoir, 1836)

Notulae systematicae - Laboratoire de phanérogamie (Muséum national d'histoire naturelle) (J. Dumoulin, 1920)

Nova acta physico-medica Academiae Caesareae Leopoldino-Carolinae Naturae Curiosum - Academia Caesarea Leopoldino-Carolina Naturae Curiosorum. (1836)

Novon a journal of botanical nomenclature from the Missouri Botanical Garden - Missouri Botanical Garden. (Missouri Botanical Garden, 2011)

Novorum actorum Academiae Caesareae Leopoldino-Carolinae Naturae Curiosorum - Academia Caesarea Leopoldino-Carolina Naturae Curiosorum. (Friedrich Frommann, 1858)

Novorum actorum Academiae Caesareae Leopoldino-Carolinae Naturae Curiosorum - Academia Caesarea Leopoldino-Carolina Naturae Curiosorum. (Friedrich Frommann, 1893)

Novus conspectus florae Europae; sive, Enumeratio systematica plantarum omnium in Europa hucusque sponte cognitarum - Gandoger, Michel, 1850 -1926 (A. Hermann, 1910)

The nursery-manual; a complete guide to the multiplication of plants - Bailey, L. H. (Liberty Hyde), 1858 -1954 (Macmillan, 1920)

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

Oesterreichische botanische Zeitschrift (A. Skofitz, 1858)

Oesterreichische botanische Zeitschrift (A. Skofitz, 1872)

Oesterreichische botanische Zeitschrift (A. Skofitz, 1890)

Oesterreichische botanische Zeitschrift (A. Skofitz, 1891)

Oesterreichische botanische Zeitschrift (A. Skofitz, 1896)

Oesterreichische botanische Zeitschrift (A. Skofitz, 1898)

Oesterreichische botanische Zeitschrift (A. Skofitz, 1910)

Oesterreichische botanische Zeitschrift (A. Skofitz, 1912)

Oesterreichische botanische Zeitschrift (A. Skofitz, 1913)

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

The Ohio journal of science - Ohio Academy of Science. (Ohio Academy of Science, 1909)

The Ohio naturalist - Ohio Academy of Science. (Biological Club of the Ohio State University, 1910)

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

Organography of plants, especially of the archegoniatae and spermaphyta - Goebel, K. (Karl), 1855 -1932 (Clar. Press, 1900)

The origin of a land flora : a theory based upon the facts of alternation - Bower, F. O. (Frederick Orpen), 1855 -1948 (Macmillan, 1908)

The origin of a land flora : a theory based upon the facts of alternation - Bower, F. O. (Frederick Orpen), 1855 -1948 (Macmillan and co., limited, 1908)