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Manual of the Vascular Plants of Texas
This manual of the Texas flora is a monumental work and the authors, D. S. Correll and M. C. Johnston, as well as their collaborators, deserve the compliments of syste matists on its publication. AExpand
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Revision of Colubrina (Rhamnaceae)
A taxonomic treatment is presented for the recognized species ofColubrina L. C. Rich. ex Brongn., with keys, synonymies, descriptions, typifications, and range maps or citations of specimens. A keyExpand
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THE SPECIES OF ZIZIPHUS INDIGENOUS TO UNITED STATES AND MEXICO
JOHNSTON, MARSHALL C. (U. Texas, Austin.) The species o Ziziphus indigenous to United States and Mexico. Amer. Jour. Bot. 50(10):1020-1027. Illus. 1963.-Taxonomic treatment is presented for the 7Expand
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Revision of condalia including microrhamnus (Rhamnaceae)
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Past and Present Grasslands of Southern Texas and Northeastern Mexico
Florida and Charleston, S. C. Florida State U. Studies 24, Tallahassee. 168 p. Lewis, I. F. 1917. The vegetation of Shackleford Bank. North Carolina Geol. Econ. Survey, Econ. Paper 46, Raleigh. 40 p.Expand
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CHROMOSOME NUMBERS FOR NORTH AMERICAN EUPHORBIACEAE
A B S T R A C T Chromosome number determinations are reported for 101 collections distributed among 54 species of the North American Euphorbiaceae. First counts are presented for 44 species. WhenExpand
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Chromosome numbers in the Compositae-III. Certain Mexican species
SummaryChromosome counts for 26 species of Mexican composites are reported for the first time. These include first reports for 10 genera (Piqueria, Dicranocarpus, Flourensia, Montanoa, Sabazia,Expand
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