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A Revision of the North American Species of the Genus Chorizanthe
Vol 21, Page 1, Date 1934
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A Monograph of the Genus Mentzelia
Vol 21, Page 103, Date 1934
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Studies in Grindelia. I. New Species, Varieties, and Combinations of Grindelia
Vol 21, Page 227, Date 1934
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Protogaster, Representing a New Order of the Gasteromycetes
Vol 21, Page 231, Date 1934
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Certain Physical and Structural Properties of Three Species of Southern Yellow Pine Correlated with the Compression Strength of Their Wood
Vol 21, Page 241, Date 1934
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Posadasia pyriformis and P. capsulata, Two Causative Organisms of Darling's Histoplasmosis in the United States
Vol 21, Page 347, Date 1934
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A New Geotrichum from a Bronchial and Pulmonary Infection, Geotrichum versiforme Moore, N. Sp
Vol 21, Page 349, Date 1934
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The Effects of Increasing the Iodine Content of the Tomato Plant on Respiration and Enzymatic Activity
Vol 21, Page 367, Date 1934
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Studies in Grindelia. II. A Monograph of the North American Species of the Genus Grindelia
Vol 21, Page 433, Date 1934
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Two New Asclepiads from Szechuan, China
Vol 21, Page 609, Date 1934
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New or Otherwise Noteworthy Apocynaceae of Tropical America. IV
Vol 21, Page 613, Date 1934
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Hymenogaster and Related Genera
Vol 21, Page 625, Date 1934
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Proposals for Amendment of Article 20 of the International Rules of Nomenclature
Vol 21, Page 709, Date 1934