to 
b4 ELEMENTS OF BOTANY 
‘ 
Fic. 2. Tips of Leaves. 
a, acuminate or taper-pointed; 6, acute; c, obtuse; d, truncate; e, retuse; 
/, emarginate or notched; g (end leaflet), obcordate; hk, cuspidate, — 
the point sharp and rigid; 7, mucronate,—the point merely a pro- 
longation of the midrib. 
Fig. 3. A, Shapes of Bases of Leaves ; B, Peltate Leaf of Tropolum. 
1, heart-shaped; 2, arrow-shaped; 3, halberd-shaped. 
