DIFFERENT FORMS OF LEAVES. 



95 



and tooth-like, then the leaf is described by the use of 

 the termination "fid?* which means divided or cleft : 

 for these leaves are described not only by the way in 

 which they are indented or divided, but also by the 

 character of their venation (p. 86). So if their vena- 

 tion is of the palmate kind they are palmately lobed 

 or palmatifid (by some called simply palmate t), 

 but if it is of the pinnate kind they are pinnately 

 lobed or pinnatifid, as the case may be. (%cf. Figs. 57, 

 p. 87 ; 4, p. 7 ; 28, p. 33 ; 72, and Figs. 73, 74.) 



Fig. 72. ralmatifid. 



- 73- 

 Pinnatifid. 



Fig. 74. A deeply 

 divided leaf. 



There are two special forms which I must tell you 

 of before we leave these divided simple leaves. In 

 one form, the end or terminal lobe is the largest, and 



* From the Latin " findo" I cut or cleave. 



fFrom the Latin " pal mains " (fr. " palnio "), marked with the palm 

 of the hand, resembling a hand with the fingers spread (cf. note p. 87). 



I The terminations "partite" (from the Latin "/#r//0 ", I divide), 

 and "sscted" (from the Lntin " ssco" I cut, cut asunder), are used to 

 distinguish leaves with deeper and very deep indentations. Palmati or 

 pinnati partite : palmati or pinnati sected (fig. 74). The term 

 "fid" being used for those which are less deeply indented. 



