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The Jepson Manual
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James C. Hickman
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Stay Out of the Basement
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R. L. Stine
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A Thousand-mile Walk to the Gulf
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John Muir
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The Plants of Pennsylvania
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Ann Fowler Rhoads, Timothy A. Block
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Introduction to Plant Science
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R. O. Parker
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Seeds of Woody Plants in North America
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James Albert Young, Cheryl G. Young
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The Different Forms of Flowers on Plants of the Same Species
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Charles Darwin
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Magazine of Horticulture, Botany and All Useful Discoveries and Improvements in Rural Affairs
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Charles Mason Hovey
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A Manual of the Botany of the Northern United States
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Asa Gray
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Nature's Garden
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Neltje Blanchan
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