(310 ) 
8. P. Dovatasn Nees. Dicecious; lower 
palet acute; radical leaves setaceously convo- 
lute.-—2¢. San Francisco. Sand dunes. Sum- 
mer. 
29. Eragrostis Beauv. 
Spikelets 2--flowered. Glumes 2, obtuse. 
Palets 2; upper palet persistent. 
1. E. pomorpEs Beauv.—©. San Francisco. 
Spring. 
Probably introduced from Europe. 
30. Briza L. QUAKING-GRASS. 
Spikelets o-flowered; flowers imbricate, dis- 
tichous. Glumes 2, concave, rounded, ventri- 
cose. Palets 2: lower rotund, concave, with 
cordate base; upper much smaller, 2-carinate. 
Caryopsis compressed. Leaves flattened. 
Spikelets pedicellate, paniculate. 
1. B.mepia L.—2. Common. Summer. 
81. Festuca L. Fescue Grass. 
Spikelets 2-a-flowered; flowers distichous. 
Glumes 2, carinate, unequal. Palets 2; lower 
not carinate, mucronate, sometimes aristate; 
upper 2-carinate. Ovary sessile, smooth. 
1. F. myurus L. Monandrous; panicle con- 
tracted, spikelike, narrow, rays appressed ; 
lower glume minute; upper glume half as long 
as the lowest floret.— ©. San Francisco. 
Spring. 
