Fie. 136. Asperella hystrix (L.) Humb. (Elymus hystrix Lin.: la W.; 
be, etpeeypien hystrix oo. gay hgab tient BRUSH.—a, A spikelet; - a gate toe: 
by Be 626 empty glumes at her species of this genus is illustrated 
1 LA Humb.inR d Ust. Mag. Bot. 7:5. 1790. Spikelets 2- 
to 4-flowered, pomimand oF mons often 2to3 together, raised on on short, callus-like 
pedicels, at each joint. lated bel ‘h 
peeing ee or2, awft-like or 
ikel spike, much 
American and two of limited range in the Old World. 
