IN TENNESSEE. 219 



PANICUM PAUCIFLORUM, Elliot. Sparsely- flowered Panic 

 Grass. 



Stems upright, from oae to two feet high, rough, open panicle. Flow- 

 ers in June and July. 



It is peculiar to swampy, boggy soils, and is of no value. 



PANICUM PILIPORME, ^.-(Slender Orab Grass). 



Loves silicious soil ; the plant is very smooth and delicate, the spikes 

 2-6, erect and filiform like the culm spikelets in two or threes, all pedi- 

 cellate. Leaves 1-2 inches long, smooth underneath, sometimes a little 

 hairy above, upper sheathe smooth, the lower ones sparsely clothed 

 with fine spreading hairs. It is annual, like the preceding ones, but 

 more succulent. 



The above species of Panicum all bear their spikelets crowded 2-3 

 together in simple and mostly one-sided clustered spikes or spike-like 

 racemes, wholly awnless and pointless; lower flower neutral, of a single 

 palet, lower glume minute, sometimes obsolete or wanting. They are 

 also known under the name Digitaria, (Gray). 



The next division, Panicum proper, bears spikelets scattered in pani- 

 cles, awnless. 



PANICUM AGROSTOIDES, Sprengl. (Agrostis-like Panic 

 Grass). 



Perennial, growing July and August in wet places and very common. 

 Culms 2-3 feet high, leaves forming a tuft at the base of the culm 2-4 

 lines wide ; ligule very short, obliquely terminate. Panicles usually 

 several, the terminal one longest ; branches mostly in pairs or somewhat 

 fasciculate, a little flexuous, finally horizantal. Spikelets three-fourths 

 of a line long, mostly purplish, somewhat crowded and one-sided, 

 smooth. Lower glume about half the length of the upper, very acute. 

 Palea of the perfect flower slightly bearded at the tip. Cattle eat it. 



PANICUM AUTUMNALE ( Autumnal Panic Grass}. 



This is similar to the last, but has branching slender stems, 

 and only grows about one foot high. It is found on sandy 

 hillsides, and old fields. Of no value as a grazing grass, 

 though eaten when nothipg better presents itself. Similar 

 to this is the 



PANICUM AMARUM, EU.~(Bitter Panic Grass). 



It is very like the preceding, and grows almost every- 



