138 FOUNDATIONS OF BOTANY 
(in palmately veined leaves) or to the midrib (in pinnately 
veined ones). Such divided leaves are shown in Figs. 
96 and 97. 
In still other leaves, known as compound leaves, the 
petiole, as shown in Fig. 102 (palmately compound), or the 
>) midrib, as shown in Fig. 103 (pin- 
nately compound), bears what look to 
be separate leaves. These differ in 
their nature and 
mode of origin 
from the portions 
of the blade of a 
divided leaf. One 
result of this dif- 
ference appears in 
the fact that some 
time before the 
whole leaf is ready 
to fall from the 
tree or other plant 
in autumn, the 
separate portions 
Fie. 104.— Pinnately or leaflets of a 
Compound Leaf of compound leaf are 
Fie. 103. — Pinnately Com- Pea. A tendril takes act 
pound Leaf of Locust, the place of aterminal Seen to be jointed 
with Spines for Stipules. leaflet. at their attach- 
ments, just as whole leaves are to the part of the stem from 
which they grow. In Fig. 102 the horse-chestnut leaf is 
shown at the time of falling, with some of the leaflets 
already disjointed. 
That a compound leaf, in spite of the joints of the 
