86 resultados para Ferns, Fossil
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Caption title: First outlines of botany.
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"U.S. Experiment Station, South Dakota, in connection with the South Dakota Agricultural College."
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Mode of access: Internet.
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vol.I. Introduction to Athyrium.--vol.II. Blechnum to Nothochlaena.--vol.III. Ochropteris to Woodwardia, and Selaginella.
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Includes index.
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Companion vol. to the author's Trees of Ohio.
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"June 1936."
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Includes bibliography (p. 88-91) and index.
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Mode of access: Internet.
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"Some comparative tables showing the distribution of ferns in the United States of North America. By George E. Davenport" (605-612p., extracted from Proceedings of the American Philosophical Society, v.20) inserterted at end.
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Mode of access: Internet.