aT, 
wd — 2. St« Waries, 2700 ft. 
mo# 
1 ; eae en hk aS <r 
9%. Ychinochloa Beauv. 
fall annuals with open panicles of dense, one-sided, spikelike 
racemes. Spikelets stiffly hispid, short-pedicellate in clusters on 
one side of the vanicle branches; first glume 3-nerved, abruptly acute, 
about half the length of the spikelet; second glume and sterile lemna 
acuminate, the glume mucronate, or short-awned, the lemma irregularly 
usually longyYawmed; fertile lemmas acuminate, indurate, smooth and shining, 
the margins inrolled below, flat above, the apex of the palea not inclosed. 
1. #. crusgalli (L.) Beauv. Barnyard Grass. ————>»Culas erect or 
ascending, as much as 110 cm. tall; sheaths compressed, smooth; blades 
flat, scabrous on the margins, otherwise nearly smooth, 8-25 cm. long, 
O-l2 mme wide; panicles mostly 10-15 om. long, the branches. ascending or 
spreading, usually densely flowered; spikelets 3 mme long, green or tinged 
with purple; first glume clasping; second glume and sterile lemma hispid on 
the nerves, scabrous or hispidulous between the nerves, the sterile lemma 
inclosing a well developed palea, the awn mostly 2=5 mm. long; fertile lemma 
about as long as the spikelet, acuminate-pointed. 
> 
Bogs, cultivated fields, and waste places. 
? oO . e _ 
s@. Setaria Beauv. (@hevtocttor—semboray 
Annuals (in our species) with narrow spikelike panicles. Spikelets 
subtended by persistent bristles, the spikelets deciduous, awnless; first 
glume acute, S-nerved, less than half as long as the spikelet; second glume 
and sterile lemma 5-nerved; fertile lomma indurate, usually rugose.—_—-» 
—» (Chaetochloa Scriim,). 
1. Se viridis (L.) Beauv. Green Foxtail. Culms erect, 50 om. tall; 
sheaths smooth; ligules canposed of hairs, about 1 mm. long; blades flat 
rather thin, scebrous, with a white cartilaginous margin, 10-20 cm. long, as 
‘e 
below each spikelet, amereescix scabrous, 6-8 mm. long; spikelets 2-2.5 mm. 
long; second glume and sterile lemma-about equal, nearly covering the fruit; 
fruit minutely transversely rugose. 
A weed in cultivated placess introduced from ULrOpe e 
—— lioscow, Usnderson 2849, 
VY 
iia tae Se NRL d i a St 
ie a Rt Adie Bha jig 
