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Geographical Guide to Floras of the World
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Geographical Guide to Floras of the World
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The North American Species of Pennisetum
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Directions for Collecting Flowering Plants and Ferns
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Guide to Popular Floras of the United States and Alaska
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Geographical Guide to Floras of the World
Annotated selected list of floras and floristic works relating to vascular plants, including bibliographies and publications dealing with useful plants and vernacular names.
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New Plants from Guatemala and Honduras
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Contributions from the United States National Herbarium
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