GENERAL MORPHOLOGY OF THE PLANT 63 



and midrib (fig. 113), or petiole (fig. 102), they are properly 

 called lohes, and the intervals between them, fissures, or in com- 

 positioi-i the term fid is used, and the leaf is also said to be 

 -cleft ; if nearer to the base, or midrib (fig. 99), they are termed 

 pa/rtitions, and the leaf is -partite ; if almost down to the base, 



Fig. 104. 



Fig. 103. Palmatifld leaf of tlie Ca,stor-oil 



Plant {Ricinus communis). Fig. 104. 



Pedatipart.ite leaf. 



or midrib, they are called segments (fig. 100), and the leaf is 

 dissected, or in composition -sected. 



When the axis of the epipodium bears monopodially branches 

 of the first order, which give rise in turn to the pinnte, and all 



Fig. 105. 



Fig. 106. 



Fig. 107. 



Fig. 106. Peltate leal of Tropceolum. Fig. 106. Perfoliate leaf of a species 



of Hare's-ear (^Bupleurum rotundifoUum). Fig. 107. Connate leaves of 



a species of Honeysuckle (Lonicera Capn/oiiiim). 



are winged, the wings showing similar degrees effusion to those 

 described above, we have forms which are described as bipin- 

 natifid, hipinnatipartite, or bipinnatisected respectively. Fur- 

 ther degrees of branching and fusion are indicated by the terms 

 tripinnatifid, &o. When the branching is very complete, and 



