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Bipinnate Leguminosae of Nicaragua
Volume 48, Page 1
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Taxonomía y distribución de las gramíneas de México, I. Hydrochloa caroliniensis var. oconneri: (Gramineae). Una nueva variedad de importancia forrajera
Volume 48, Page 77
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Realignments in the Dichanthelium acuminatum complex (Poaceae)
Volume 48, Page 99
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Additional notes on the genus Ghinia. II
Volume 48, Page 111
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Chromsomes of Sachsia (Compositae - Inuleae)
Volume 48, Page 129
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Studies of American Plants--XX
Volume 48, Page 131
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Additional notes on the genus Lippia. XVI
Volume 48, Page 151
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A new Peperomia from Nicaragua
Volume 48, Page 186
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Episcothamnus and Bishopalea, two new genera of Vernonieae (Asteraceae) from Brasil, and the resurrection of Sipolisia
Volume 48, Page 209
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Two new tuber-bearing Solanum from South America
Volume 48, Page 229
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New species of Myristicaceae, Combretaceae, and Urticaceae from coastal Colombia and Ecuador
Volume 48, Page 233
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Additional notes on the genus Lippia. XVII
Volume 48, Page 255
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Additional notes on the genus Citharexylum. XVIII
Volume 48, Page 270
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Nomenclatural transfers and taxonomic notes on some South American Gentianaceae
Volume 48, Page 281
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Additional notes on the genus Citharexylum. XIX
Volume 48, Page 292
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Notes on the genus Holmskioldia
Volume 48, Page 313
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Mimosa sousae, a new species of Sensitivae (Leguminosae) from Oaxaca, Mexico
Volume 48, Page 369
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Notes on the genus Xolocotzia (Verbenaceae)
Volume 48, Page 390
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Notes on the genus Adelosa (Verbenaceae)
Volume 48, Page 392
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Notes on the genus Acharitea (Chloanthaceae)
Volume 48, Page 394
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Notes on the genus Tetraclea (Verbenaceae)
Volume 48, Page 397
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Dicerandra radfordiana, a new Labiate from Georgia
Volume 48, Page 433
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Additional notes on the genus Vitex. XIX
Volume 48, Page 452