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COLLINS, B. AND G. WEIN (Savannah River Ecology Lab, Drawer E, Aiken, SC 29802). Understory vines: Distribution and relation to environment on a southern mixed hardwood site. Bull. Torrey Bot. Club 120: 38-44. 1993.-We characterized the small-scale distribution of vines in the understory of a mesic southern hardwood forest in relation to each other and to microenvironmental factors hypothesized to promote ascent into the canopy. Eleven vine species were encountered on the site; four species, Vitis rotundifolia Michaux, Rhus radicans L., Smilax glauca Walter, and S. bona-nox L., were common. Vine species co-occurred as expected by chance. Individuals were erect, self-supporting, with stem diameter |