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"Relationship between Mycorrhizal Infection and Diversity in Vegetation: Evidence from the Great Smoky Mountains." Functional Ecology 2, no. 2 (1988): 259-262.
"Rhododendron Decline in the Great Smoky Mountains and Surrounding Areas." Southeastern Naturalist 13, no. 1 (2014): 1-25.
"Rhododendron Decline in the Great Smoky Mountains and Surrounding Areas." Southeastern Naturalist 12, no. 4 (2013): 703-722.
"Southeastern Agaricales, II." Journal of the Tennessee Academy of Science 33, no. 3 (1958): 186-191.
"Southeastern Agaricales, III." Journal of the Tennessee Academy of Science 34, no. 3 (1959): 162-166.
"The Status of Sticta sylvatica, an 'Exceedingly Rare' Lichen Species, in Eastern North America." Evansia 31, no. 1 (2014): 17-24.
"Studies Lactarius-III: The North American Species of Section Plinthogali." Brittonia 14, no. 4 (1962): 369-440.
"Studies on Lactarius-I: The North American Species of Sect. Lactarius." Brittonia 12, no. 2 (1960): 119-139.
"Studies on Lactarius-II: The North American SPecies of Sections Scrobibulus, Crocei, Theiogali and Vellus." Brittonia 12, no. 4 (1960): 306-350.
"Survey of Diseases and Insects of Fraser Fir and Red Spruce in the Southern Appalachian Mountains." European Journal of Forest Pathology 19, no. 7 (1989): 389-398.
"Taxonomic Comparison of Diachea subsessilis and D. deviata (Myxomycetes, Didymiaceae) Using Scanning Electron Microscopy." Systematics and Geography of Plants 74, no. 1 (2004): 217-230.
"Three New Species of Acanthostigma (Tubeufiaceae, Dothideomycetes) from Great Smoky Mountains National Park." Mycologia 102, no. 3 (2010): 574-587.
"Tree Canopy Biodiversity in the Great Smoky Mountains National Park: Ecological and Developmental Observations of a New Myxomycete Species of Diachea." Mycologia 96, no. 3 (2004): 537-547.
"Tree Canopy Biodiversity: Student Reserach Experienced in Great Smoky Mountains National Park." Systematics and Geography of Plants 74, no. 1 (2004): 47-65.
"Using Heterozygosity to Estimate a Percentage DNA Sequence Similarity for Environmental Species' Delimitation Across Basidiomycete Fungi." New Phytologist 182, no. 4 (2009): 795-798.
"Vertical Distribution of Lichen Growth Forms in Tree Canopies of Great Smoky Mountains National Park." Southeastern Naturalist 6, no. sp2 (2007): 83-88.
"Mushrooms." Smoky Mountain Living 5, no. 4 (2005): 108-110.
"Mushrooms Take Mysterious Shapes." National Wildlife (World Edition) 23, no. 6 (1985): 5-9.
1994 Beech Bark Disease Complex Studies in the Great Smoky Mountains National Park. Knoxville, TN: University of Tennessee, 1994.
Calicioid Lichens and Fungi of Great Smoky Mountains National Park. Discover Life in America, 2009.
The Calicioid Lichens and Fungi of Great Smoky Mountains N.P.. Fort Kent, Maine: University of Maine , 2009.
Checklist of Fungi of the Great Smoky Mountains National Park In Management Report. Gatlinburg, TN: Uplands Field Reserach Laboratory, 1979.
Comments on the Fungi of the Spruce-Fir Forest of the Southern Appalachian Mountains In The Southern Appalachian Spruce-Fir Ecosystem: Its Biology and Threats. Gatlinburg, TN: Uplands Field Research Laboratory, 1984.
Fleshy Gilled Agaricales (Mushrooms) in the Great Smoky Mountains National Park. Knoxville, TN: Botany Department, University of Tennessee, 1976.
Fungi of the Great Smoky Mountains National Park: A Preliminary Report. Knoxville, Tennessee: University of Tennessee, 1935.
