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  1. Catalogue of the Bryophyta
    By: Porter, Thomas Conrad, - Small, John Kunkel,
    Publication info: Boston,Ginn & company,1904.
    Contributed by: Library of Congress
    BHL Collections: Library of Congress
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  2. Flora of Pennsylvania. Edited with the addition of analytical keys by John Kunkel Small.
    By: Porter, Thomas Conrad, - Small, John Kunkel,
    Publication info: Boston,Ginn & Co.,1903.
    Contributed by: Mertz Library, The New York Botanical Garden
    BHL Collections: New York Botanical Garden
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  3. Reports upon the botanical collections made in portions of Nevada, Utah, California, Colorado, New Mexico and Arizona :during the years 1871, 1872, 1873, 1874, and 1875 /By J. T. Rothrock ... and the following scientists: Sereno Watson, George Engelmann, Thos. C. Porter, M. S. Bebb, William Boott, George Vasey, D. C. Eaton, Thos. P. James [and] Edward Tuckerman ...
    By: Rothrock, Joseph T., - Bebb, M. S. - Boott, William, - Eaton, Daniel Cady, - Engelmann, George, - James, Thomas Potts, - Porter, Thomas Conrad, - Tuckerman, Edward, - Vasey, George, - Watson, Sereno,
    Publication info: Washington,Govt. Print. Off.,1878
    Contributed by: Missouri Botanical Garden, Peter H. Raven Library
    BHL Collections: Engelmann Herbarium
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  4. Synopsis of the flora of Colorado /by Thomas C. Porter and John M. Coulter.
    By: Porter, Thomas Conrad, - Coulter, John Merle,
    Publication info: Washington :Govt. print. off.,March 20, 1874.
    Contributed by: Missouri Botanical Garden, Peter H. Raven Library
    BHL Collections: Engelmann Herbarium
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