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Ectopopterys, a new genus of Malpighiaceae from Colombia and Peru
Vol 14, Page 11, Date 1980
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Notes on Mascagnia in South America
Vol 14, Page 17, Date 1980
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A guide to the identification of Mexican Sphagna
Vol 14, Page 25, Date 1980
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Comments on Sphagnum henryense
Vol 14, Page 53, Date 1980
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Carlowrightia mcvaughii: a polymorphic species from southwestern Mexico
Vol 14, Page 57, Date 1980
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THE GENUS JUSTICIA (ACANTHACEAE) IN THE CHIHUAHUAN DESERT
Vol 14, Page 61, Date 1980
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Two new Cucurbitaceae from Mexico
Vol 14, Page 69, Date 1980
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Additions to the hypogeous mycoflora of the Canary Islands and Madeira
Vol 14, Page 75, Date 1980
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A Stryphnodendron new to the Amazonian flora
Vol 14, Page 83, Date 1980
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EIGHT NEW SPECIES OF IPOMOEA AND QUAMOCLIT FROM MEXICO
Vol 14, Page 85, Date 1980
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Karwinski's itineraries in Mexico, 1827-1832 and 1841-1843
Vol 14, Page 141, Date 1980
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The taxonomy of Carex section Stellulatae in North America north of Mexico
Vol 14, Page 153, Date 1980