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Certamen Melastomataceis V
Vol 6, Page 1, Date 1957
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A new species of Prestonia from Brazil
Vol 6, Page 12, Date 1957
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Materials toward a monograph of the genus Vitex. VIII
Vol 6, Page 13, Date 1957
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A new species of Forsteronla from the Amazon
Vol 6, Page 65, Date 1957
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Materials towards a monograph of the genus Vitex-IX
Vol 6, Iss 2, Page 70, Date 1957
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Materials toward a monograph of the genus Vitex. X
Vol 6, Page 129, Date 1958
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Notes on Bromeliaceae, IX
Vol 6, Page 193, Date 1958
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Materials toward a monograph of the genus Vitex. XI
Vol 6, Page 197, Date 1958
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The genus Castelia
Vol 6, Iss 4, Page 232, Date 1958
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Materials towards a monograph of the genus Citharexylum I
Vol 6, Page 242, Date 1958
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Notes on Bromeliaceae---X
Vol 6, Page 257, Date 1958
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Materials towards a monograph of the Citharexylum II
Vol 6, Page 262, Date 1958
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The Hawaiian beach Scaevola (Goodeniaceae)
Vol 6, Page 321, Date 1958
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Notes on new and noteworthy plants. XXII
Vol 6, Iss 6, Page 322, Date 1958
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Materials toward a monograph of the genus Citharexylum. III
Vol 6, Page 332, Date 1958
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Crataegus hillii Sargent
Vol 6, Page 369, Date 1958
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Crataegus magniflora Sargent
Vol 6, Page 372, Date 1958
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Quercus mutabilis in the Big Oak Tree State Park of Missouri
Vol 6, Page 374, Date 1958
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Measuring the height of trees with the Abney level
Vol 6, Page 379, Date 1958
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Materials toward a monograph of the genus Citharexylum. IV
Vol 6, Page 383, Date 1958
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Notes on Bromeliaceae, XI
Vol 6, Page 433, Date 1959
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Notes on new and noteworthy plants. XXIII
Vol 6, Page 446, Date 1959
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Materials toward a monograph of the genus Citharexylum. V
Vol 6, Page 448, Date 1959
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Four nomenclatural changes of woody plants
Vol 6, Iss 8, Page 506, Date 1959