20 Class HI. Order II. 



led, solitary, oblong- ovate, acuminate, awnless. 

 Mich. 



A tall, branching grass, the culm, leaves, and especially 

 the sheaths covered with thick, rigid, horizontal hairs. Panicle 

 often a foot long and nearly as wide, its branches long, straight, 

 stiff, slender, given off at right angles, knotted at the base. Pe- 

 duncles capillary, supporting solitary, scattered, naked flowers. 

 Frequent in corn fields, &c. flowering about July. Annual. 



PANICUM LATIFOLIUM. L. Broad leaved panic grass. 



Leaves ovate- lanceolate, clasping ; sheaths hai- 

 ry at the neck ; panicle with lateral racemes. 



Distinguished from most other grasses around it by its very 

 broad leaves. Culm smooth, giving out branches from its joints. 

 Leaves wide, rough at the edge, acuminate, clasping the stem, 

 hairy where they unite with their sheaths. Panicle of small or 

 middling size, with its branches mostly simple, the lower ones 

 sometimes compound. Glumes ovate, striate, awnless. Woods. 

 May, June. Perennial, 



21. ALOPECURUS. 

 ALOPECURUS GENICULATUS. L. Float ing foxtail grass. 



Culm ascending, bent at the joints ; spike some* 

 what compound, cylindrical ; glumes obtuse, hairy. 

 Sm. 



Stems of various lengths, ascending, forming knees or an- 

 gles at the joints, and rooting from the lower ones, when the 

 plants grow in the water. Leaves rather smooth and short, 

 their sheaths a little swelling. Spike cylindrical, obtuse, di- 

 visible into lobes. Glumes of the calyx obtuse, fringed with 

 long hairs. Corolla awned at base. Ponds and ditches. July. 

 ^Perennial. 



