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The systematics and breeding system of Gelsemium (Loganiceae)
Volume 51, Page 1
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The genera of Ulmaceae in the southeastern United States
Volume 51, Page 18
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A new species of Ormosia from Brazil
Volume 51, Page 129
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The genera of the Cannabaceae in the southeastern United States
Volume 51, Page 185
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Notes relating to the floras of Norfolk and Lord Howe Islands, I
Volume 51, Page 204
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The taxonom,ic status of Protocyrtandra (Gesneriaceae)
Volume 51, Page 241
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Studies in the Leguminosae 11. A New Species of Derris from the Solomon Islands
Volume 51, Page 251
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The genera of Acanthaceae in the southeastern United States
Volume 51, Page 257
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Floral morphology and vascular anatomy of the Hamamelidaceae: The apetalous genera of Hamamelidoideae
Volume 51, Page 310
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Notes on the genus Galipea (Rutaceae) in Central America
Volume 51, Page 427
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The genera of Molluginaceae and Aizoaceae in the southeastern United States
Volume 51, Page 431
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Relationships in the Piriqueta caroliniana--P. cistoides complex (Turneraceae)
Volume 51, Page 492
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The genera of Chrysobalanaceae in the southeastern United States
Volume 51, Page 521
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A new species of Parietaria (Urticaceae) fron Northeastern Mexico
Volume 51, Page 529