Apera spica-venti Beauv.—a, The empty glumes; 5, the floret show- 
ing eet long-awned flowering glume. 
—. Fam. Pi. 3: 495. 1768. Spikelets + sowered, hermaphro- 
ll; rachi 
Ys & 
panes glume into a slender, naked bristle. Glumes 3; the first pty, 
what unequal; the 2d longer than the Ist thin-mem us, acute, 
awnless, and 3-nerved; flowering glume shorter than the outer ones, thin and 
early hyaline, shortly 2-toothed at the apex, avwned: awn inserted just below 
apex of zg g it in length, straight or 
somewhat geniculate. lea a little st 2-keeled, 2-toothed 
Stamens 
3. har Rey short; coupe lumose. . Caryopsis opsie narrow, included 
_ in the fruiting lume, free. Annua i grammes, with flat leaves an d terminal, 
diffuse or fi 
, Many: red p 
Species 2,in Burope and Western Asia, 1 1 introduced into North Aronson. 
