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Flora of Panama. Part III. Fascicle II
Vol 33, Page 1, Date 1946
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Contributions to Our Knowledge of American Carboniferous Floras. VIII. Another Medullosa from Iowa
Vol 33, Page 141, Date 1946
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Maize in Mexico a Preliminary Survey
Vol 33, Page 147, Date 1946
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A Cytological Study of Yeast (Saccharomyces cerevisiae)
Vol 33, Page 249, Date 1946
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Contributions to Our Knowledge of American Carboniferous Floras. IX. Some Petrified Seeds from Iowa
Vol 33, Page 291, Date 1946
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The Gallatin Fossil Forest
Vol 33, Page 309, Date 1946
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Flora of Panama. Part III. Fascicle III
Vol 33, Page 315, Date 1946