14 NEW YORK STATE MUSEUM 



Mucronate; when the apex is terminated by a short blunt tip (figure 



23). 



Cuspidate ; when the tip of the blade is hard and stiff (figure 24) . 



Terms applied to the base of the leaf: 



The terms truncate, acuminate, acute, obtuse (defined above) may 

 also be applied to the shape of the base of the leaf blade, in addition to the 

 following : 



31 32 



Cordate; heart-shaped (figure 25). 



Cuneate, or wedge-shaped; when the sides of the leaf blade taper to 

 an acute angle at the base (figure 27). 



Auriculate, when the depression at the base of the blade is deep and 

 produces on either side conspicuous basal lobes (figures 28 and 32). 



Sagittate; when the b^sal lobes point downward like the head of an 

 arrow (figure 30). 



Hastate; when the basal lobes are turned outward (figure 29). 



