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• Native animals of New Zealand
• Natural history of Juan Fernandez and Easter Island
• Nautilus
• New species from South America, I
• New species in the palm genus Syagrus Mart
• New species in the palm genus Syagrus Mart., II
• New species of Digitaria, Pennisetum, and Poa (Gramineae) from Costa Rica
• New taxa and new combinations of Agaricales : (Diagnoses fungorum novorum Agaricalium IV)
• Nota lepidopterologica
• Note on Gibsoniothamnus
• Notes on Calvatia (Lycoperdaceae), I
• Notes on Calvatia (Lycoperdaceae), II : Calvatia cretacea (Berk.) Lloyd, an Arctic montane plant
• Notes on the flora of Costa Rica, I
• Notes on the genus Hygrolembidium (Hepaticae)
• Notulae systematicae
• Novapex : trimestriel de la Société belge de malacologie
• Novitates zoologicae : a journal of zoology in connection with the Tring Museum