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The Phytomer in Relation to Floral Homologies in the American Maydeae
Vol 19, Iss 1, Page 1
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Prehistoric Bean Remains from Caves in the Ocampo Region of Tamaulipas, Mexico
Vol 19, Iss 2, Page 33
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On the Origin of the Orchidaceae
Vol 19, Iss 3, Page 57
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Cytological Observations on Two Tropical Forms of Tripsacum
Vol 19, Iss 4, Page 97
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Prestonia: An Amazon Narcotic Or Not?
Vol 19, Iss 5, Page 109
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A Reputedly Toxic Malouetia from the Amazon
Vol 19, Iss 5, Page 123
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How Were the Glass Flowers Made?
Vol 19, Iss 6, Page 125
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The Hallucinogenic Fungi of Mexico: an Inquiry Into the Origins of the Religious Idea among Primitive Peoples
Vol 19, Iss 7, Page 137
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Further Archaeological Evidence on the Effects of Teosinte Introgression in the Evolution of Modern Maize
Vol 19, Iss 8, Page 163
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Carludovica palmata in Broommaking
Vol 19, Iss 9, Page 183
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Neonelsonia—A Colombian Folk Medicine
Vol 19, Iss 9, Page 191
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Novelties in the Orchid Flora of the Guayana Highlands
Vol 19, Iss 9, Page 195
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Edible Fruits of Solanum in South American Historic And Geographic References
Vol 19, Iss 10, Page 215
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Edible Fruits of Solanum in Colombia
Vol 19, Iss 10, Page 235