Introduction 



xvii 



7 \^\!ya\j9y\o ii 



Fig. 2— LEAF PATTERNS 



Leaf Shapes 



1 -Lanceolate. 2-Oblanceolate. 3-Oblong. 4-Elliptical. 5-Oval. 

 6-Ovate. 7-Orbicular. 8-Scale-like. 9-Aoicular. 10-Linear. 



Leaf Margins 



1 -Serrate. 2-Crenate. 3-Entire. 4-Dentate. 5-Sinuate. 6-Doubly 

 serrate. 7-Lobed. 



Leaf Apices 



1 -Acuminate. 2-Rounded. 3-Eniarginate. 4-Obtuse. 5-Mucronate. 

 6- Acute. 



Leaf Bases 



1 -Obtuse. 2-Cuneate. 3-Rounded. 4- Acute. 5-Rounded. 6-Cor- 

 date. 7-Truncate. 



Leaf Types 

 1 to 1 0-Simple leaves. 1 1 -Pinnately compound leaf. 



