134 
A) 
Fig. 103. Eragrostis pectinacea (Michx.) Steud.—a, A spikelet; b,a 3-flowered 
spikelet; c,a portion of a spikelet showing the persistent paleas below, Figs. 
240 to 250,in Bul,7,and 511 to 516,in Bul. 17, illustrate other species of Eragrostis. 
103. ERAGROSTIS Beauy. Agrost.70. 1812. Spikelets 2- to many-flowered, 
the uppermost flower imperfect; rachilla articulated but sometimes not break- 
i il after the fall of the fruiti lumes 2, more or less 
+ 
ig up gg pty 
unequal, ally shorter than the floral gl ; flowering glumes glabrous, ob- 
tuse, or acute, awnless, 3-nerved, lateral nerves sometimes very faint. Paleas 
shorter than their glumes, often persistent after the fall of the fruiting glume, 
2-nerved, nerves prominent. Annual or perennial grasses with herbaceous 
stems, of variou: I fe 1, mu hed 
ed st vg 
ae 
_ with simple culms. Allied to Poa, but with 3-nerved flowering glumes, which 
are destitute of any wooliness. The species are very variable and their limits 
hard to define. = ; 
