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By: Knuth, Paul, - Appel, Otto, - Loew, Ernst, - Müller, Hermann,Edition:Publication info: Leipzig, W. Engelmann, 1898-1905Volume: 1Series:Holding Institution: University of Toronto - Gerstein Science Information CentreSubjects:BHL Collections:
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By: Appel, Otto, - Graebner, Paul, - Reh, L. - Sorauer, Paul,Edition:Publication info: Berlin, P. Parey, 1909-Volume: Bd.1 (1909)Series:Holding Institution: NCSU LibrariesSubjects:BHL Collections:
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By: Appel, Otto,Edition:Publication info: Berlin : Verlagsbuchhandlung Paul Parey ; Julius Springer, 1910Volume:Series:Holding Institution: Biblioteca Digital del Real Jardín Botánico de MadridSubjects:BHL Collections:
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By: Silva Tarouca, Ernst Emanuel, Graf, - Appel, Otto, - Schneider, Camillo,Edition: 2., neudurchgesehene und verm. Aufl.Publication info: Wien, Hölder-Pichler-Tempsky, 1923 [c1922]Volume:Series:Holding Institution: NCSU LibrariesSubjects:BHL Collections:
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By: Appel, Otto,Type: ArticleIn: Annals of the Missouri Botanical GardenVolume: 2Series:Issue:Date: 1915Page Range: 275--285Publication Info: St. Louis, Missouri Botanical Garden Press, 1914-Subjects: