Various methods have been used to evaluate the vascularization of leaves. One method which has been widely used is based upon the vein length per unit area of the blade. Plymale and Wylie (1944) measured the total length of veins per unit area for a few species of woody dicots. This unit has been shown by the studies of Philpott (1947) to be a slightly less reliable expression of the vascularization of Ficus leaves than the intravascular interval, a term defined and used by Wylie (1939). Schuster (1908, 1910) measured the total length of veins per unit area for a number of species of dicots and monocots, but included only one grass.
Proceedings of the Iowa Academy of Science
©1949 Iowa Academy of Science, Inc.
Lommasson, Robert C.
"A Method of Determining Vein Length per Unit Area in Grass Leaves,"
Proceedings of the Iowa Academy of Science, 56(1), 143-145.
Available at: https://scholarworks.uni.edu/pias/vol56/iss1/20