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The North American Species of Asclepias L
Vol 41, Page 1
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Maize and Sorghum as a Mixed Crop in Honduras
Vol 41, Page 213
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The Tropical American Genus Tachigalia Aubl. (Caesalpiniaceae)
Vol 41, Page 223
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A Correction in Asclepias
Vol 41, Page 261
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An Analysis of Introgression in a Population of Stemless White Violets
Vol 41, Page 263
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"Some Pecularities of Maize in Asia" By N. N. Kuleshov
Vol 41, Page 271
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A Field Survey of Chromosome Numbers in the Species of Tradescantia Closely Allied to Tradescantia Virginiana
Vol 41, Page 305
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Introgression of Salvia Apiana and Salvia Mellifera
Vol 41, Page 329
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Some American Arborescent Lycopod Fructifications
Vol 41, Page 351
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A Study of American Petrified Calamities
Vol 41, Page 395