I'hnlahll R. L. Coffi, 



Fig. 16. — Northern Spy. Blade large, somewhat folded and waved, upright, often 

 somewhat reflexed; serrations sharp, often curved (A). 



Photo by R. L. Coffi, 



Fig. 17. — .Jon.vth.\n. Blade very small, more or less folded, sometimes reflexed, narrow 

 at base and apex (A); serrations moderately sharp, coarse and irregular (B). 



