128 BOTANY OF LA SALLE COUNTY. 



C. stramin ea. Spikes 3 td 8, small, globular, 

 tawny. 



Order 129. GRAMINEAE. Grasses. Culms. 

 Stems usually hollow, jointed and closed at the 

 joints; leaves 2 ranked, the base sheathing- the 

 stem, sheath split on side opposite blade; leaves 

 long-, narrow linear acute, sometimes ending- 

 in a long 1 , almost thread-like point; marg-ins 

 sometimes revolute; flowers consisting 1 of some 

 scale-like leaflets, the 2 outerg-lumes the 

 palet. 



Sparti na cynosuroi des. Marsh Grass, Cord Grass. 

 A tall, coarse grass, 2 to 6 ft., leaves 2 to 4 ft. 

 long 1 . Wet places. 



Panicum. Panic Grass. More or less hairy; leaves 

 broad; flowers in a spreading-, slender, branched 

 panicle. 



P. g-la brum. Spreading- or erect, 5 to 12 in. 



P. sang-uina le. Crab Grass. Finger Grass. 



P. capilla re. Old Witch Grass. Variable. 



P. autumna le. P. Leaves small, narrow, edg-es 

 hairy. 



P. agrostoi des. culms flattened, erect. 



P. virg-a turn. Tall, 3 to 5 ft.; leaves long-, flat. 



P. latifo Hum. Leaves clasping-. Moist woods. 



P. clandesti num. Leafy to the top. 



P. niti dum. Leaves thick. 



P. depaupera turn. Branched from base or not. 



P. dichotomum. Leaves clustered near ground. 



P. laxiflo rum. Flowers larg-er than in the last. 



P. Crus g-al li. Barnyard Grass. Oplismenus, 

 Wood. Also known as Cock Spur, Barn and 

 water Grass, 



P. Crusg-alli var. his pidum. Very bristly. 



Seta ria. Bristly Fox Tail or Barn or Pig-eon Grass. 



