In order to final an equation that make poss ible to estimate the leaf area of Wissadula usbpeltata (Kuntze ) Fries , were studied correlations between truelea far ea (Y) and the lea flenght in the mid rib direct ion (C), maximum leaf width (L) , lenght of the segment between the petiole insert ion point in the leaf and the first rami fication of leaf mid rib (CE), L + C, L x C and L x CE. Al l equations, geometric and simple linear, permited good lea fare a estimatives. It is suggested to decid e for simple linear equations envolving the C x L, considering zero the linear coefficient. Thus , the leaf area of W. subpeltata can be estimated by the equation Y = 0.8549 (C x L), or else 85,49% of the multiplication between the leaf lenght in the mid rib direction and the maximum leaf width.
Wissadula subpeltata; leaf area estimative