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13 Pages in
Charles Darwin's Library
associated with "flora - Pinus canadensis"
Die natürliche wagerechte Richtung von Pflanzentheilen
By: Frank, Albert Bernhard.
Publication info: Leipzig, Hermann Weissbach, 1870
Pages:
Page 28
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Page 26
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Page 64
Untersuchungen über die Bedeutung der Nektarien in den Blumen
By: Kurr, Johann Gottlob von,
Publication info: Stuttgart, Henneschen Buchhandlung, 1833
Pages:
Page 95