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SEVEN NEW SPECIES OF STIGMAPHYLLON (MALPIGHIACEAE) FROM BRAZIL
Vol 17, Page 7, Date 1990
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The taxonomy of Jubelina (Malpighiaceae)
Vol 17, Page 21, Date 1990
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Notes on neotropical Malpighiaceae III
Vol 17, Page 39, Date 1990
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An evaluation of familial limits among the genera traditionally aligned with the Thuidiaceae and Leskeaceae
Vol 17, Page 55, Date 1990
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Comments on Sphagnum sect. Sphagnum in South America
Vol 17, Page 71, Date 1990
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A new look at Sphagnum sect. Acutifolia in South America
Vol 17, Page 83, Date 1990
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Preliminary notes on Sphagnum sect. Subsecunda in South America
Vol 17, Page 93, Date 1990
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Systematics of Henrya (Acanthaceae)
Vol 17, Page 99, Date 1990
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New and reconsidered Mexican Acanthaceae. III. Justica
Vol 17, Page 133, Date 1990
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New, reconsidered, and little-known Mexican species of Ruellia (Acanthaceae)
Vol 17, Page 139, Date 1990
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New species of Malvaceae from South America
Vol 17, Page 163, Date 1990
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The Malvaceae published by Turczaninow
Vol 17, Page 173, Date 1990
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The taxonomy of Carex bromoides (Cyperaceae)
Vol 17, Page 215, Date 1990
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Systematics of the Scutellaria angustifolia complex (Labiatae)
Vol 17, Page 223, Date 1990
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Philippine fern notes
Vol 17, Page 267, Date 1990
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Four new species of Carex (Cyperaceae) from Mexico, with notes on the Mexican Carex flora
Vol 17, Page 279, Date 1990
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Notes on the Archaeinae and other Russulas
Vol 17, Page 295, Date 1990
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A MEXICAN PINE PROMOTED TO SPECIFIC STATUS: PINUS PRAETERMISSA
Vol 17, Page 307, Date 1990
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MOONWORTS (BOTRYCHIUM SUBG. BOTRYCHIUM) OF THE UPPER GREAT LAKES REGION, U.S.A. AND CANADA, WITH DESCRIPTIONS OF TWO NEW SPECIES
Vol 17, Page 313, Date 1990