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Two new species of Heteropterys (Malpighiaceae) from southeastern Brazil
Volume 23, Page 29
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The identity of two water-dispersed species of Heteropterys (Malpighiaceae): H. leona and H. platyptera
Volume 23, Page 35
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Peixotoa floribunda (Malpighiaceae), a new species from Paraguay
Volume 23, Page 49
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Observations on the Malagasy genus Rhynchophora (Malpighiaceae)
Volume 23, Page 53
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Jacquin's species of Bunchosia (Malpighiaceae) from Cartagena, Colombia
Volume 23, Page 59
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Notes on Neotropical Malpighiaceae--VIII
Volume 23, Page 63
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Monograph of Lophopterys (Malpighiaceae)
Volume 23, Page 83
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Miscellaneous notes on Sphagnum--11
Volume 23, Page 107
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Catalog of Acanthaceae in El Salvador
Volume 23, Page 115
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Streblacanthus monospermus (Acanthaceae), a genus and species new to the flora of Mexico
Volume 23, Page 139
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Talipariti (Malvaceae), a segregate from Hibiscus
Volume 23, Page 225
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Additions to the Carex lurida group (Cyperaceae) in Mexico, including a new species from Chiapas
Volume 23, Page 333
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Carex section Porocystins (Cyperaceae) in Mexico and Central America
Volume 23, Page 339
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A purple color form of Pitcher's Thistle
Volume 23, Page 349
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Synopsis of Croton and Phyllanthus (Euphorbiaceae) in Western tropical Mexico
Volume 23, Page 353