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1926- Die Pflanzenareale. 5 vols.. Vol. 2 with L. Diels; Vol. 3 with G. Samuelsson; 

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Hardy, M. 



1920. The Geography of Plants. 327 pp. Oxford: Clarendon Press. 



Harshberger, J. W. 



1911. Phytogeographical Survey of North America. Ixiii + 790 pp. New York: Stechert 

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Hayek, A. 



1926. Allgemeine Pflanzengeographie. 409 pp. Berlin: Gebr. Borntraeger. 



Herzog, T. 



1926. Geographic der Moose. 439 pp. Jena: G. Fischer. 



Hitchcock, A. S. 



1898. Oecological plant geography of Kansas. Acad. Sci. St. Louis. Trans., 8:55-69. 



Hooker, J. D. 



1853. Introductory Essay to the Flora of New Zealand. London. 



1859. On the Flora of Australia, its Origin, Affinities and Distribution; being an 

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Hulten, E. 



1950. Atlas over Vaxternas Utbredning i Fanerogamer och Ormbeinksvaxter Norden. 

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Humboldt, A. von 



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Irmscher, E. 



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