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A Revision of the Genus Priva
Vol 13, Page 1
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Studies on South American Labiatae. II. Synopsis of the Genus Sphacele
Vol 13, Page 35
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A Revision of the Genus Bouchea (Exclusive of Chascanum)
Vol 13, Page 71
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Further Studies on the Subterranean Algal Flora of the Missouri Botanical Garden
Vol 13, Page 101
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Pseudo-Fertility in Nicotiana
Vol 13, Page 141
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The Identification of Pollen from So-Called "Hay Fever" Plants
Vol 13, Page 355
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Determination of Total Nitrogen, Nitrate-Nitrogen, and Total Nitrogen not Including Nitrate-Nitrogen: Further Observations on a Modification of the Official Salicylic-Thiosulphate Method
Vol 13, Page 391
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Some Cytological and Physiological Studies of Mosaic Diseases and Leaf Variegations
Vol 13, Page 425