ON THE FORMS OF STIPULES 183 



less concave, becoming slightly twisted. The axillary 

 buds are sheltered in their axils. The terminal bud is 

 amply protected by them. The plant forms a spreading 

 tuft like a species of grass with coarse leaves. 



The same causes which have led to the length and 

 narrowness of the leaves of grass have probably in- 

 fluenced Lathyru8 Nissolia, as well as other species which 

 grow under similar circumstances. The resemblance 

 is perhaps, also an advantage in preventing its being 

 picked out and eaten by browsing quadrupeds. 



