IV 



THE STUDY OF THE SHOOT 



Ternate or trifoliate, the leaf is built up of three leaflets, as in 

 the Clover and Wood-Sorrel (Fig. 55). 



Bitemate, when the leaf is ternate, but each division is 

 divided again ; in fact, three leaflets divided into three leaflets, as 

 in the Baneberryor Herb Christopher. 

 Palmate, when the leaflets radiate 

 from the leaf-stalk like fingers from 

 the palm of the hand, e.g., Horse- 

 Chestnut (Fig. 37), 



When the leaflets are arranged 

 along each side of the midrib, they are 

 said to be like a feather or pinnate. 



FIG. 55. Ternate leaf of 

 Wood-Sorrel. 



FIG. 56. Ternate leaf of Strawberry. 



FIG. 57. Biternate leaf of 

 Baneberry. 



There are two kinds of pinnately divided leaves those with 

 an equal number of leaflets along each side of the mid-rib, and 

 those with an odd leaflet. The former are called paripinnate, 

 and the latter iinparipinnate. 



Paripinnate, when there are an equal number of leaflets on 

 each side of the mid-rib, as in the Bitter Vetch. 



