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Campbell, Hutson, and Sharp's Great Smoky Mountains wildflowers. 5th ed. Northbrook, IL: Windy Pines Pub., 1995.
Great Smoky Mountain Wildflowers. 4th ed. Knoxville, TN: University of Tennessee Press, 1992.
Great Smoky Mountains Wildflowers. Knoxville, TN: University of Tennessee Press, 1964.
Great Smoky Mountains Wildflowers. 4th ed. Knoxville, TN: University of Tennessee Press, 1992.
Great Smoky Mountains Wildflowers. Knoxville, Tenn.: University of Tennessee Press , 1962.
Great Smoky Mountains Wildflowers. 3rd ed. Knoxville, Tenn.: University of Tennessee Press, 1970.
Special reports, memoranda, lecture syllabi, radio-script. National Park Service.
Acrobolbus in the United States." The Bryologist 39, no. 1 (1936): 1-2.
"Bryophytic Unions of Certain Forest Types of the Great Smoky Mountains." American Midland Naturalist 20, no. 2 (1938): 249-301.
"Contributions to the Lichen Flora of North America. II. The Lichen Flora of the Great Smoky Mountains." The Bryologist 45, no. 5 (1942): 151-152.
"Elements in the Tennessee Flora with Tropical Relationships." Journal of the Tennessee Academy of Science 30, no. 1 (1955): 53-56.
"First and Interesting Reports of Flowering Plants in Tennessee." Castanea 29, no. 4 (1964): 178-185.
"The Great Smoky Mountains National Park, an Important Botanical Area." Chronica Botanica 6, no. 13 (1941): 296-297.
"Interesting Bryophytes, Mainly of the Southern Appalachains." The Journal of the Southern Appalachian Botanical Club 1, no. 5 (1936): 49-59.
"Molendoa Sendtneriana in the United States." The Bryologist 61, no. 4 (1958): 365-259.
"Notes and News." Castanea 28, no. 1 (1963): 48.
"Notes on Interesting Bryophytes of the Southern Appalachians, II." Castanea: The Journal of the Southern Appalachian Botanical Club 3, no. 1 (1938): 9-11.
"Notes on Interesting Bryophytes of the Southern Appalachians, III." Castanea 7, no. 3 (1942): 39-42.
"Notes on Interesting Bryophytes of the Southern Appalachians, IV." Castanea 9, no. 5/6 (1944): 106-108.
"Phytogeographical Correlations Between the Bryophytes of Eastern Asia and North America." THe Journal of the Hattori Botanical Laboratory, no. 35 (1972): 263-268.
"Preliminary Report on the Liverworts of Eastern Tennessee." Journal of the Tennessee Academy of Science 6, no. 4 (1931): 163-173.
"A Probable Antibiotic Effect of Some Lichens on Bryophytes." Reveu Bryologique et Lichenologique 32, no. 2-4 (1963): 215.
"A Remarkably Reduced Vascular Plant in the United States." Science 142, no. 3598 (1963): 1483-1484.
"Some Algae of the Southern Appalachians." Journal of the Tennessee Academy of Science 19, no. 4 (1944): 337-345.
"Some Historical Factors and the Distribution of Southern Appalachian Bryphytes." The Bryologist 44, no. 1 (1941): 16-18.
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