171 



Fig. 153. Aira preecox L. "Early Wild Oat-grass. — A tufted, 

 erect or ascending annual 2 to 12 cm. high, with a contracted 

 panicle 1 to 2 cm. long. — Introduced and sparingly distributed iu 

 the Middle States near the coast, growing in sandy soil. Also on 

 Vancouver Island. [Europe.] May-July. 



