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Chromosomes of Guardiola (Compositae, Heliantheae)
Volume 40, Page 21
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Miscellaneous notes on neotropical flora, X
Volume 40, Page 25
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A review of the Central American species of Pentacalia (Asteraceae: Senecioneae)
Volume 40, Page 37
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A new combination in Guzmania (Bromeliaceae)
Volume 40, Page 55
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Problems in the placement of Dioclea paniculata Killip MS. (Leguminosae)
Volume 40, Page 243
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Eoleucodon, a new moss genus from Polynesia
Volume 40, Page 253
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Leskeodon ponapensis, a new moss from Micronesia
Volume 40, Page 257
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Studies in Neotropical Senecioneae, Compositae. I. Reinstatement of genus Lasiocephalus
Volume 40, Page 307
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Revision of Joinvillea (Joinvilleaceae). Pacific plant studies 37
Volume 40, Page 369
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Solanum roeii: a new species from Chiapas, Mexico
Volume 40, Page 379
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Additional notes on the genus Aegiphila. XXVI
Volume 40, Page 393
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Additional notes on the genus Avicennia. XII
Volume 40, Page 406
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Additional notes on the genus Bouchea. VI
Volume 40, Page 413
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Additional notes on the genus Citharexylum. XII
Volume 40, Page 486
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Studies in the Senecioneae (Asteraceae). IX. A new genus, Dresslerothamnus
Volume 40, Page 493
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Studies in the Heliantheae (Asteraceae). XIII. A new genus, Perymeniopsis
Volume 40, Page 495