930 General Notes. 
STRUCTURE OF THE FRUIT OF PORCUPINE Grass.—The mature 
* fruit ” of this interesting grass consists of a narrow cylindrical 
grain (Fig. 3) about 1° long and 1™™ thick. This is enclosed in 
Fic. t.—Entire “ fruit” of ize, showing the y 
porcupine grass, natural size, p 
pv Beg 2.—Lower portion of the same, enlarged. Fic. 3- Grain of 
the two hard persistent palets, the larger of which bear ii 
awn from 12 to 16™ Jong (Fig. 1). This larger palet con 
encloses the smaller one, and at maturity it is quite Gm 
