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A Contribution to the Ecology of Pelagophycus
Vol 53, Page 1
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Two New Species of Daphniphyllum
Vol 53, Page 28
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The Asian Genus Neanotis Nomen Novum (Anotis) and Allied Taxa in the Americas (Rubiaceae)
Vol 53, Page 32
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Revision of Mexican and Central American Saurauia (Dilleniaceae)
Vol 53, Page 47
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Chromosome Numbers of Phanerogams. 1
Vol 53, Page 100
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New Species of Allomarkgrafia and Aspidosperma (Apocynaceae)
Vol 53, Page 104
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A New Species of Platymiscium (Leguminosea) from Panama
Vol 53, Page 105
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Convolulus Rozynskii (Standl.) Lewis & Oliver, Comb. Nov. (Convolvulaceae)
Vol 53, Page 110
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Bernoullia Oliv., A Genus of Bombacaceae New to Panama
Vol 53, Page 112
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The Publication Date of the Genus Cochlospermum (Cochlospermaceae)
Vol 53, Page 113
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Hibiscus Luteus (Rolfe) L. O. Williams & A. Robyns, Comb. Nov. (Malvaceae)
Vol 53, Page 114
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Revision of the North and Central American Hexandrous Species of Aristolochia (Aristolochiaceae)
Vol 53, Page 115
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The Genus Erythronium (Liliaceae) in Kansas
Vol 53, Page 197
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Taxonomic Status of Claytonia rosea and C. lanceolata (Portulacaceae)
Vol 53, Page 205
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Pollen Morphology and Classification of the Pyrolaceae and Monotropaceae
Vol 53, Page 213
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Systematic Implications from Electron Microscopic Studies of Compositae Pollen-A Review
Vol 53, Page 220
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Chromosome Numbers of Oldenlandia corymbosa (Rubiaceae) from Southeastern Asia
Vol 53, Page 257
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Claytonia caroliniana Var. Spatulifolia (Salisbury) Lewis, Stat. Nov. (Portulacaceae)
Vol 53, Page 258
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Addendum: Schlechter's New Guinea Duplicates of Liparis (Orchidaceae) at the Missouri Botanical Garden
Vol 53, Page 259
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Mesechites pilosissima Woodson (Apocynaceae) New to Peru
Vol 53, Page 260
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Piper and Peperomia (Piperaceae) New to Panama
Vol 53, Page 261
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Central American and West Indian Species of Inga (Leguminosae)
Vol 53, Page 265
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Dukea, A New Genus of the Rubiaceae (Tribe Mussaendeae)
Vol 53, Page 360
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Notes on Coussarea (Rubiaceae), Especially the Panamanian Species
Vol 53, Page 368
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The Genus Poinsettia (Euphorbiaceae) in Florida
Vol 53, Page 375
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Ilex Discolor Var. lamprophylla (Standl.) Edwin, Stat. Nov. (Aquifoliaceae)
Vol 53, Page 376
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A New Species of Inga (Leguminosae) from Panama
Vol 53, Page 377