At Berea College until 2014
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“Ecology of an Endangered Gentiana Flavida Population in East-Central Kentucky.”Adams, Christopher A. and Ralph L. Thompson. Phytoneuron 83 (2017): 1 – 25. Accessed February 8, 2019.
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"Addendum to the Vascular Plants of the Berea College Forest in Madison, Jackson, and Rockcastle Counties, Kentucky"Ralph L. Thompson and Derick B. Poindexter, Castanea 79/4 (2014). 279-283.
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"American mistletoe (Phoradendron leucarpum ssp. leucarpum, Viscaceae) occurrence in host trees within the city of Cairo, Alexander County, Illinois, and its incidence in Illinois, U.S.A"Thompson, RL, Journal of the Botanical Research Institute of Texas, 8/2 (2014). 641-660.
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"History, Dispersal, And Distribution Of Buddleja Davidii (Scrophulariaceae) In Kentucky"Thompson, Ralph L., and J. Richard Abbott, Journal of the Botanical Research Institute of Texas, 7/1 (2013). 495-505.
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"Thlaspi Allaceum (Bassicaceae) naturalized in Georgia, Missouri, and North Carolina"Thompson, R.L., D.B. Poindexter, K. Rivers Thompson, and P.F. Threadgill, Phytoneuron, 86(2013). 1-13.
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"Vascular Flora and Plant Communities of Dead Horse Knob (Rucker's Knob), Madison county, Kentucky"Thompson, Ralph, Journal of the Botanical Research Institute of Texas, 6/2 (2012).
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"Kentucky"Derick B. Poindexter and Ralph L. Thompson, Castanea, 76/2 (2011). 190-192.