18 OBJECT LESSONS IN BOTANY. 
the egg inverted. A similar form, but narrower, is the ob- 
lanceolate; that is, the inverted lance-shaped, like the leaf 
of Papaw, or Fig. 19. Next, still narrower, is the spatulate, 
a figure compared to the surgeon's spatula (Fig. 21); and 
lastly, the wedge-shaped, or cuneate, tapering from a broad 
apex to a slender base, as in Fig. 20. 
Fig. 18. Obovate leaf of the Smoke-tree (Rhus cotula). 
Fig. 19. Oblanceolate leaf of Muhlenburg’s Willow. 
Fig. 20. Cuneate leaf of a Sundew (Drosera longifolia). 
Fig. 21. Spatulate leaf of a Sundew (variety of D. longifolia), 
18. Thus we have arranged these twelve forms of feather- 
veined leaves into three classes. 
such leaves. Oblanceolate? Show us examples. Spatulate? Show us ex- 
amples, Wedge-shaped, or cuneate? Give examples. 
18. Repeat the names of the four leaf-forms broadest at base ;—the four 
broadest in the middle ;—the four broadest towards apex. 
