13fi 



Fig. 432. Stipa ienuissima Triii. Mom. Acad. St. Petersb. (VI.) 

 2 : 36. 1836. Slender Feather-grass.— A slender, densely- 

 tufted perennial 5 to 8 dm. high, with long, filiform leaves and 

 narrow panicles 15 to 20 cm. long. Empty glumes (a), subulate- 

 pointed, tbe first 12 to 18 mm., tbe second 5 to 8 mm. long; flow- 

 ering glume (6) about 2.5 mm. long. Awn flexuous, 7 to 8 cm. 

 long. — Limestone hills, etc., Texas and New Mexico. [Mexico.] 

 August, September. 



