240 



FiCx. 222. Pappophoium apertum Sciibn.; Bull. Toit. IJot. 

 Club, 9: 148; Beal, Grnsses N. Am., 2: 447. — A Cii'spitose peren- 

 nial 3 to 8 <im. high, with long, narrow, mostly involute leaves 

 and narrow, pale, or often straw-colored panicles 15 to 20 cm. 

 long. — Valleys, western Texas to Arizona and Mexico, .June. 



