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A taxonomic study of Lechea
Iss 121, Page 29, Date 1938
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Index [no. 121]
Iss 121, Page 133, Date 1938
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Gonolobus within the Gray's manual range
Iss 122, Page 281, Date 1938
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On Houttuyn's overlooked binomials for native or introduced plants in eastern North America
Iss 122, Page 288, Date 1938
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Smelowskia and Polyctenium
Iss 122, Page 294, Date 1938
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The names of three species of Brassica
Iss 122, Page 306, Date 1938
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Polygonum kelloggii and its allies
Iss 122, Page 309, Date 1938
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Thalictrum polycarpum S. Wats., a disputed name
Iss 122, Page 317, Date 1938
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The type of the genus Lepidospartum
Iss 122, Page 320, Date 1938
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New species, varieties and transfers
Iss 122, Page 331, Date 1938
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Index [no. 122]
Iss 122, Page 359, Date 1938
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Noteworthy plants of Southeastern Virginia
Iss 123, Page 364, Date 1938
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Index [no. 123]
Iss 123, Page 487, Date 1938
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Notes on Lamourouxia
Iss 124, Page 3, Date 1939
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Herbarium notes,--I
Iss 124, Page 5, Date 1939
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Studies in the Bromeliaceae,--IX
Iss 124, Page 7, Date 1939
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A new species of Desmodium from Peru
Iss 124, Page 11, Date 1939
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On certain type specimens in ferns
Iss 124, Page 13, Date 1939
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The group of Polypodium polypodioides
Iss 124, Page 22, Date 1939
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A miscellany of New World Euphorbiaceae
Iss 124, Page 35, Date 1939
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Typification of the generic synonyms of Pedilanthus
Iss 124, Page 43, Date 1939
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Pedilanthus and Cnidoscolus proposed for conservation
Iss 124, Page 47, Date 1939
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Index [no. 124]
Iss 124, Page 55, Date 1939
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The North American species of Crotalaria
Iss 125, Page 317, Date 1939
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Index [no. 125]
Iss 125, Page 369, Date 1939
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Some notes on the botanical relation between North America and Eastern Asia
Iss 126, Page 385, Date 1939
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The cruciferous genus Physaria
Iss 126, Page 392, Date 1939
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The varieties of Convolvulus spithamaeus and of C. sepium
Iss 126, Page 415, Date 1939
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New species, varieties and transfers
Iss 126, Page 423, Date 1939
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Index [no. 126]
Iss 126, Page 463, Date 1939
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Some species of Notholaena, new and old
Iss 127, Page 3, Date 1939
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Studies in the Bromeliaceae,--X
Iss 127, Page 17, Date 1939
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Plantae Mexicanae,--I
Iss 127, Page 20, Date 1939
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Studies in the Iridaceae,--I
Iss 127, Page 33, Date 1939
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A miscellany of New World Euphorbiaceae,--II
Iss 127, Page 48, Date 1939
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Index [no. 127]
Iss 127, Page 79, Date 1939
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Last survivors in the flora of tidewater Virginia
Iss 128, Page 465, Date 1939
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Index [no. 128]
Iss 128, Page 575, Date 1939
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Desmodium: preliminary studies--I
Iss 129, Page 3, Date 1940
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Studies in the Bromeliaceae--XI
Iss 129, Page 31, Date 1940
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Index [no. 129]
Iss 129, Page 36, Date 1940
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Spergularia in North and South America
Iss 130, Page 57, Date 1940
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Index [no. 130]
Iss 130, Page 215, Date 1940