V:iLD FLOWERS OF NEW YORK 



15 



Peltate; a rounded leaf blade with the petiole attached at or near the 

 middle of the lower surface (figure 31). 



Perfoliate ; when the bases of leaf blades meet and join around tlie stem 

 of the plant (figure 26). 



Terms applied to llie i)iargi}ial se<^)iiei!t(!tlo)i of leaf blades: 



Sinuate; when the marginal lobes of the leaf blade present a wavy 

 outline (figure 33). 



Pinnately lobed; when the tissue between the veinlets is cut out nearly 

 to the midrib of the leaf and the divisions are arranged like the pinnae of 

 a feather (figure 34). 



Palmate ; when the blade is deeply divided nearly or quite to a common 

 base (figure 38). 



