VEINS OF THE LEAF. 11 
LESSON II. 
VEINS AND VENATION OF THE LEAF. 
6. Tue blade of the Quince leaf (Fig. 2) shows many veins 
running through it, and branching all over it. Examine 
Fig. 2. Leaf of the Quince, showing the veins. 
them. First, the petiole seems to be extended and continued 
right through, from the base to the apex, forming the largest 
vein in the leaf. This is the mzdvein. 
7. Next observe several large branches sent off from this 
midvein on both sides, right and left. These are the veznlets. 
Now, looking at these veins, their arrangement reminds us of 
a feather, and we call such leaves feather-veined. Therefore, 
Violet? Do all kinds of leaves have petioles?—of Phlox, for example? 
What do you understand by sessile leaves? 
6. Describe the midvein of the Quince leaf. 
% Describe the veinlets. What is the feather-veined venation? 
