168 



Fig. 150. Calamovilfa brevipilis (Torr.) Scribn. (Arundo brevi- 

 pilis Torr.). Short-haired Eeed-grass. A rather slender, 

 smooth perennial 9 to 12 dm. high, with very narrow leaves and 

 open panicles 8 to 24 cm. long. Sandy swamps in the pine bar- 

 rens of New Jersey. August, September. 



