THE STEM. 
59 
upon the specimens yon have collected for study. 
Find the leaf-axil in your living plants. 
The Node, or joint of a stem, is the point from 
which leaves are given off. 
The Internode is the portion of stem between 
two nodes. 
The Leaf-Axil is the point at the upper side of 
the leaf where it joins the stem. 
Observe whether the nodes of plants are swollen 
and watery (tumid); whether they are hairy or of a 
different color from the internodes. Look carefully 
to see if stems are jointed at the nodes. 
Observe the parts pointed out in Fig. 83, and look 
for like parts in the plants before you. 
Terminal Bud.— The bud at the end of the 
stem. 
Axillary Bud. —The bud in the axil of a leaf. 
Branch. —A stem which grows from an axillary 
bud. It is sometimes called a secondary stem, and the 
stem from which it starts is said to be the primary 
stem. 
Is the branch made up of the same parts as the 
main stem? Do you find branches growing from ax¬ 
illary buds in your specimens? 
Do not pass on to the next exercise till you have 
examined a great many stems, found all the parts 
shown in Figs. 82 and 83, and become so familiar with 
their names that when asked to point out a leaf-axil 
or a node or internode, you can do it promptly and 
with confidence. 
