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)

Nomenclator fungorum : exhibens ordine alphabetico nomina tam generica quam specifica, ac synonyma a scriptoribus de scientia botanica fungis imposita - Streinz, Wenzel M. (Wenzel Matern), 1792 -1876 (C. Gorischek, 1862)

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)

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)

Nomenclature of the apple : a catalogue of the known varieties referred to in American publications from 1804 to 1904 - Ragan, W. H. 1836 -1909 (U.S. G.P.O, 1905)

Nordens fjärilar : handbok i Sveriges, Norges, Danmarks och Finlands : Macrolepidoptera - Aurivillius, Chr. (Christopher), 1853 -1928 (Aktiebolaget Hiertas bokförlag, 1888)

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)

The North American cup-fungi (inoperculates) - Seaver, Fred Jay, 1877 -1970 (1951)

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

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