COMPOUND LEAVE3. 181 



Bipinnatum y doubly pinnate, tripinna- 



twn, triply pinnate, of which examples 



have just been given : all apply to the 



mode, as well as the degree, in which 



leaves are compounded. 



Pedatinn, pedate, is a peculiar kind of 

 leaf, being ternate, with its lateral leaf- 

 lets compounded in their fore part, as 

 Helleborus fatidus, Engl. Bot. t. 613, 



* and H. niger, Curt. Mag. t. 8. There 

 is an affinity between a pedate leaf and 

 those simple ones which are three-ribbed 

 at the base, p. 167. See also the dis- 

 position of the lateral veins in Aristolo. 

 chia Ckmatith, Engl. Bot. L 398. 



In compounding the foregoing terms we 

 must take care not to express a contradiction. 

 Thus the leaves of many Mimoscc, as the 

 purpurea, Andr. Repos. t. 3?2, and shisi- 

 tiva, are conjugata piimata, conjugate in 

 the first instance, pinnate in the next, not 

 conjugato-pinnata, of an intermediate nature 

 between conjugate and pinnate, which is im- 

 possible. Neither are the leaves of Mimosa 



