FIELDBOOK OF ILLINOIS WILD FLOWERS 



d 



Fig. 3. — The shapes of leaves, a. — Lanceolate, b. — Ovate. 

 c. — Heart-shaped or cordate, d. — Linear, e. — Oblong, f. — Oval. 



the stipular lines^ which are helpful in identifying certain kinds 

 of plants. Sometimes the petiole is lacking and the blade is 



