INCISION OF LEAVES 165 
Dock, and Curled Mint, they are called crisped or curled (fig. 
324). 
Incision.—This term is employed when the margins of the 
blades are more deeply divided than in the above instances, so 
that the parenchyma only extends about midway or a less dis- 
tance between them and the midrib, or petiole. The divisions 
are then commonly called lobes. It is usual, however, to give 
different names to these lobes, according to the depth of the 
incisions by which they are produced ; thus, if they reach to 
about midway between the margins and midrib (jig. 313), or 
petiole (fig. 331), they are properly called lobes, and the inter- 
Fic. 324. Fic. 325. Fig. 326., 
7) 
Up 
Fig. 325, 
Pinnatipartite leaf of a species of Valerian (Valeriana dioica ).— Fig. 
326. Pinnatisected leaf of a species of Poppy (Papaver Argemone), 
Fig. 324, Crisped or curled leaf of a species of Mallow (Malva). 
vals between them fissures, or in composition the term -fid is 
used, and the leaf is also said to be -cleft: if nearly to the 
base, or midrib (fig. 325), they are termed partitions, and the 
leaf is -partite ; if quite down to the base, or midrib, they are 
called segments (fig. 326), and the leaf is dissected, or in compo- 
sition -sected. The segments of the latter differ from the leaf- 
lets of compound leaves, as already noticed (see page 162), in 
not being articulated ; and also in being united to the midrib, 
or petiole, by a broad base. 
In describing the above incised leaves we say that they are 
bifid or two-cleft, trifid or three-cleft, quinquefid or five-cleft, 
septemfid or seven-cleft, and multifid or many-cleft, according to 
the number of their fissures; or two-lobed, three-lobed, fowr- 
lobed, &c., from the number of their lobes. Or, a leaf is also 
said to be tripartite or trisected, &c., in the same manner, 
