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Effect of elevated C02 on stomatal density and distribution in a C4 grass and a C3 forb under field conditions. Annals of Botany. 1994;74:595 -599. doi:10.1006/anbo.1994.1159..
Leaf-level responses to light and temperature in two co-occurring Quercus (Fagaceae ) species: implications for tree distribution patterns. Forest Ecology and Management. 1994;68:149 -159. doi:10.1016/0378-1127(94)90042-6..
Photosynthetic and stomatal responses to high temperature and light in two oaks at the western limit of their range. Tree Physiology. 1996;16:557 -565. doi:10.1093/treephys/16.6.557..
Photosynthetic gas exchange and water relations responses of three tallgrass prairie species to elevated carbon dioxide and moderate drought. International Journal of Plant Science. 1997;158:608 -616. Available at: http://www.jstor.org/stable/2474921..
Responses in stomatal conductance to elevated CO2 in 12 grassland species that differ in growth form. Vegetatio. 1996;125:31 -41. doi:10.1007/BF00045202..
Stomatal responses to variable sunlight in Bur Oak (Quercus macrocarpa Michx.) leaves with different photosynthetic capacities. International Journal of Plant Science. 1994;155:583 -587. Available at: http://www.jstor.org/stable/2475031..