135 
mia pennsylvanica (DC.) A. Gray. EATON’S-GRASS.—a, A 
ane b, mae empty glumes which have been a: chong the three Ronee 
Figs. 252 to 254 illustrate other species of th 
. EATONIA Journ. Phys. 89 :104. 1819. Spikelets 2- to 3-flowered; 
rachill articulated above the empty eiunes and between the florets and pro- 
naked bristle. Empty glumes 2a 
little shorter than the fiorets, the Ist very narrow or linear and 1-nerved, the 
obovate, 3-nerved, with rather broad, scarious margins; flowering 
glumes obtuse and usually awnless, the 2d floret sometimes short-awned from 
the apex ea Ww, 2. les distinct, short; 
G arrow, free. Rather slender tui rennials, with ales flat leaves 
and narrow but often lax, t , Many-flowe! 
pan. 
Speci all natives of the Eastern United States, two <ainating westward 
to the Rocky Mountains. 
