210 



Fu;. 506. Triodia trinerviglumis ^'ascy, 111. N. Am. Grasses, 

 1- : No. 40. 1891. Wiky Thiodia. — A slender, erect, Ciespitose 

 pereunial 6 to 10 cm. liij:;h, with narrow leaves and contracted, 

 ^>l)ike-like panicles 8 to 16 cm. long. 8i>ikelets7- to 9-llo\vered, 6 

 to 10 mm. long; flowering glumes (b) 4 to 5 mm. long and pubes- 

 cent on the nerves below. — Dry soil, Missouri to Arkansas and 

 Avest to Colorado and Arizona. June-September. 



