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The Phytomer in Relation to Floral Homologies in the American Maydeae
Vol 19, Iss 1, Page 1, Date 1959-08-18
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Prehistoric Bean Remains from Caves in the Ocampo Region of Tamaulipas, Mexico
Vol 19, Iss 2, Page 33, Date 1960-01-27
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On the Origin of the Orchidaceae
Vol 19, Iss 3, Page 57, Date 1960-05-19
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Cytological Observations on Two Tropical Forms of Tripsacum
Vol 19, Iss 4, Page 97, Date 1960-06-30
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Prestonia: An Amazon Narcotic Or Not?
Vol 19, Iss 5, Page 109, Date 1960-06-30
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A Reputedly Toxic Malouetia from the Amazon
Vol 19, Iss 5, Page 123, Date 1960-06-30
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How Were the Glass Flowers Made?
Vol 19, Iss 6, Page 125, Date 1961-01-09
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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, Date 1961-02-17
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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, Date 1961-04-11
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Carludovica palmata in Broommaking
Vol 19, Iss 9, Page 183, Date 1961-06-30
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Neonelsonia—A Colombian Folk Medicine
Vol 19, Iss 9, Page 191, Date 1961-06-30
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Novelties in the Orchid Flora of the Guayana Highlands
Vol 19, Iss 9, Page 195, Date 1961-06-30
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Edible Fruits of Solanum in South American Historic And Geographic References
Vol 19, Iss 10, Page 215, Date 1962-05-07
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Edible Fruits of Solanum in Colombia
Vol 19, Iss 10, Page 235, Date 1962-05-07