TRIANDRIA, DIGYNIA, 
43 
lanceolate, nerved, scabrous. Ligula white acu- 
minate, apex 4-fid. Sheath striate smooth. Pani- 
cle at length diffuse. Branches verticillate Ca/. 2- 
valved acute equal carinated, carina rough, green. 
Cor. 2-valved less than the calix, white, smooth at 
the base, valves unequal, awnless. Stam> 3, anthers 
yellow. MuhU 
A. alba, Schrader. 
A. hispida, Willd. 
Herds-grass. 
Wild in woods, and also much cultivated. Dr. Muhlenberg 
hints that this species mny be identical with A, dispar y Mich, 
and A, alba, and vulgaris, of the Hortus Kewensis. 
5. A. culm erect; panicle finally diffuse purplish. vuigari^ 
Branches verticillate, and the little branches sca- 
brous. Cal. 2-valved equal glabrous. Cor. 2- 
valved smaller than the calix. MuhU 
Red-top. 
Very frequent in similar places with No. 4 in Jersey, and 
also in the Neck, this side of the river. Perennial. June. 
6. A. culm erect, terete, jointed, joints smooth, landestina. 
Leaves linear very long, nerved, stiff, somewhat^^*^* 
rough on the margins, glaucous. Ligula none or 
small Sheath long, hairy at the mouth. Panicle 
narrow terminal and lateral, hidden, and often 
somewhat spike-formed. Branches alternate, 
with the smaller ones smooth. Cal. 2-valved, 
valves white unequal, carinated smooth. Cor. 2- 
valved, twice the length of the calix. 
Perhaps Agrostis aspera, Mich. 
Varies in size from nine inches to two feet. In this vicinity 
it is of low stature, seldom exceeding nine or ten inches ; but 
I have seen it on the borders of the Conestogoe creek, near 
Lancaster, two feet high. On the high gravelly banks or hills, 
near the canal road, and the Reservoir or Basin. Very rare^ 
Perennial. September. 
