463 
with, shorter awns, and prominently nerved. Perennial; flowers in August. 
Culms 3 to 5 feet high Wisconsin, Iowa, Ohio, Michigan, Minnesota, and 
about Lake Superior. It was introduced into England by Sir Joseph Banks, 
in 1790, and found very productive, the foliage rather early, but being coarse 
and rank was unfit for pastures. 
98. Elymus Striatus. Willdenow. 
Syn. —E. villosus, Muhl. 
Spike dense and slender, upright or slightly nodding; spikelets mostly in 
pairs, minutely hairy; glumes linear-awl-shaped, or truly awl-shaped, bristle- 
awned, about twice the length of the flowers; leaves rather narrow; sheaths 
smooth, or hairy, or downy. Perennial; flowers in July. Culms 2 to 3 feet 
high. Wisconsin, Ohio, and about Lake Superior. 
99. Elymus Hystrix. Linnceus. 
Syn.— Asprella hvstrix, Willd. A. augustifolia, Nutt. Gymnostachum 
hystrix, Schreb. Bottle-brush grass. 
Spikes upright, loose; spikelets 2 to 3 together, about three-flowered; flowers 
smoothish, or often rough-hairy, tipped with an awn twice their length; leaves 
and sheaths smoothish; glumes wanting, or minute rudiments. Perennial; 
flowers in July. Culms 2 to 4 feet high. In woods, common. Wisconsin, 
Illinois, Ohio, Michigan, Minnesota, and about Lake Superior. 
Plate I, Fig. 10.— a, spikelet. 
b, a flower, unopened. 
c, a portion of the awn magnified. 
d , the stamens. „ 
e, the germ. 
GENUS 37. IlORDEUM. Linnaeus. 
[The ancient Latin name of Barley.] 
_ * 
Spikelets one-flowered, with an awl-shaped rudiment on the inner side, 3 at 
-each joint of the rachis, lateral ones usually abortive; glumes side by side in 
front of the spikelets, slender and awn-pointed, or bristle-form; paleae herba¬ 
ceous, the lower convex, long awned from the apex; stamens 3; gram oblong, 
commonly adhering to the paleae. 
