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Materials toward a monograph of the genus Verbena. XXIII
Vol 11, Page 1, Date 1964
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A new color form of stachys [hyssopifolia] from Long Island
Vol 11, Iss 1, Page 69, Date 1964
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Species of Ichnanthus in South America Related to I. ichnodes (Griseb.) Hitchc. & Chasease
Vol 11, Page 73, Date 1964
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Materials toward a monograph of the genus Verbena. XXIV
Vol 11, Page 80, Date 1964
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New South American Ichnanthus
Vol 11, Page 145, Date 1964
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Two new genera of Olyreae from South America
Vol 11, Page 152, Date 1964
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Materials toward a monograph of the genus Verbena. XXV
Vol 11, Page 155, Date 1964
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Chromosome numbers of Thailand Compositae
Vol 11, Page 217, Date 1965
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Materials toward a monograph of the genus Verbena. XXVI
Vol 11, Page 219, Date 1965
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Grasses [Gramineae] new to the flora of Maryland, Delaware and Virginia
Vol 11, Page 289, Date 1965
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Materials toward a monograph of the genus Verbena. XXVII
Vol 11, Page 290, Date 1965
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The grass genus Dissanthelium
Vol 11, Page 361, Date 1965
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Certamen Melastomataceis IX
Vol 11, Iss 6, Page 377, Date 1965
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Materials toward a monograph of the genus Verbena. XXVIII
Vol 11, Page 400, Date 1965
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Cleome ornithopodioides L. [Capparidaceae] on vanadium-slag at Canton, Baltimore, Maryland with notes on the biogeochemistry of vanadium
Vol 11, Page 423, Date 1965
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Lobaria quercizans Michx. on the Coastal Plain and Piedmont Plateau in Maryland and Virginia
Vol 11, Iss 7, Page 433, Date 1965
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Materials toward a monograph of the genus Verbena. XXIX
Vol 11, Page 435, Date 1965