4 16 Bulletin No. 205 [March, 



This species closely approaches Hysirix liystrix, in which the 

 glumes arc very minute awns; it does not have pcdiceled divergent 

 spikelcts as in Hystrix. 



PEORIA CO. Peoria, Brcndcl. 



Elymus striatus AVilld. 

 Slender Wild Rye (Fig. 282) 



Lapham '.57, 547, 548; Babcock '73, 97; Patterson '76, 51; Flagg '78, 283. 

 E. strictus var. villosus, Brendel '87, 64. Eliimus striatus, Higley and Eaddin 

 '91, 147; Huett '97, 131; Gleason '10, 49. Elymus striatus villosus, Lapham '57, 

 547, 588; Huett '97, 131. Elymus propinquus, Lapham '57,. 547. 



Culms slender, 1 to 3 feet tall, sheaths smooth or with a few line, 

 soft hairs ; l)lades 6 to 8 inches long, 4 to 10 mm. wide, rough beneath, 

 slightly pubescent above; spikes 3 to 4 inches long; glumes slightly 

 bowed at base, very narrow, parallel for the greater part of their 

 length ; lemma 6 mm. long with an awn 2 to 3 em. long. 



This species is usually found in woods and shady places. It is a 

 more slender, graceful species than either E. cariadensis or E. virgin- 

 icus. 



ILLINOIS SPECIMENS: Without locality, Vasey ; Hillsgrove, Bolton, cham- 

 paign CO. Urbana, Giibs, Oct., 1898; Mahomet, Seymour, July, 1884. chris- 

 tian CO. Taylorville, Andrews. COOK CO. Without locality, Lapliam. fulton 

 CO. Without locality, Pcpoon. hancock co. Augusta, Mead in 1842. jackson 

 CO. Without locality, Lapham. JO daviess CO. Without locality, Pepoon. 

 KANKAKEE CO. Kankakee, Hill 159 in 1873. mchenry CO. Algonquin, Nason, 

 July, 1878. PEORIA CO. Peoria, McDonald, Aug., 1890 and 1900; Peoria, Bren- 

 del. ST. CLAIR CO. Mascoutah, TVelsch. stark co. Wady Petra, V. H. Chase 

 128 and 1507. wabash co. Without locality, Schneck, July, 1900; without lo- 

 cality. Shearer; Mt. Carmel, Schnecl-, June, 1877 and 1879; near Timberville, 

 Schncclc, June, 1879. 



Elymus striatus arkansanus (Scribn. and Ball) Hitchc. — This va- 

 riety differs from the species in having smooth or slightly roughened 

 glumes and lemmas. 



stark CO. Near Wady Petra, V. E. Chase, June, 1897. 



Elymus virginicus L. 

 Virginia Wild Rye. Terrell Grass. Lyme Grass (Fig. 283) 



Lapham '57, 547, 587; Babcock '73, 97; Patterson '76, 51; Flagg '78, 283; 

 Brendel '87, 64; Higley and Eaddin '91, 147; Huett '97, 131; Gleason '10, 149; 

 Sherff '13, 595. 



Culms stout, 2 to 4 feet tall ; sheaths usually smooth, sometimes the 

 upper inflated and inclosing the base of the spike ; blades 6 to 12 inches 

 long, 4 to 8 mm. wide, rough; spikes 1.5 to 5 inches long, stiff; glumes 

 smooth, considerably curved or bowed out at base, hardened and yel- 

 low for 1 to 2 mm. ; lemmas smooth ; awn 4 to 18 mm. long. 



This species is very common in moist places, particularly along the 

 edges of woods. 



