Trees, Shrubs and Vines 
Wavy-edged: entire, yet slightly undulating, Fig. 8, b. 
Wedge-shaped \ower part of leaf tapering with straight edges to 
a point. . 
Whorl: cluster of leaves encircling stem at same point, Fig. 4, c. 
Winged: said of a seed with membranous extension, as in maple 
and elm. 
424 
