62 



MANUAL OF BOTANY 



only indication of branching that can be noticed is found in the 

 disposition of the vascular bundles which enter each branch, 

 giving rise to a pinnate or palmate venation, as will be described 



Fig. 98. 



Fig. 99. 



Fig. 100. 



Fig. 101. 



Fig. 102. 



Fig, 98. Crisped or curled leaf of a species of 



Mallow i^Malva), Fig. 99. Piunatipartite 



leaf of a species of Valerian (Valeriana 



dioica). Fig. 100. Pinnatisecbed leaf of a 



species of Poppy {Papaver Argemone). 



Fig. 101. A decompound leaf. Fig. In2. 



Palmate leaf of a species of Passion-flower 

 { Passijiora). 



later. When the fusion of the wings is not complete, the several 

 branches are known as lohea. It is usual to give different names 

 to the apparent divisions of the leaf based on the degree of the 

 fusion ; thus if they reach to about midway between the margins 



