THE GRASS FAMILY, 427 



Spikelets conspicuously awned. 

 a. Panicle dense, egg-shaped or roundish ; awns 



very long and bristly 42. Hedgehog-grass. 



6. Panicle contracted, elongated, silvery gray, four j 



to eight inches long, inclining to one side. P^" ^^^^^.^ Oat-grass 



o. .V, f . 1 • 1 (while young). 



Stems three feet high ■' 



c. Panicle open and spreading. 



Leaves hair-like ; panicle one to three inches 



long, silver-gray. 

 Stem six inches high ; root annual ; leaves 



few and short ; panicle triply branched. 19. Silvery Haie-geass. 

 Stems twelve to eighteen inches high ; 



densely tufted; root perennial; leaves 



verynumerous.long, and densely tufted; 



branches of the panicle crisped and 



wavy 17. Heath Hair-grass. 



Leaves flat ; panicle three to eight inches long. 

 Panicle yellowish, especially after flowering ; 



stamens long; stem and leaves hairy. . 21. Yellow Oat-geass. 

 Panicle silver-gray, unilateral ; lowermost 



flowers with stamens only ; stems three 



feet high 22. Silver Oat-grass. 



Division 2nd. 



Spikelets either without remarkable gloss, and in that case many-flowered ; or if 



shining, then only one-flowered. 



Section \st. 



Branches of the panicle pointing upwards, or diverging only at a very slight angle, 



rendering it close, narrow, and in form like a Lomhardy poplar. Panicle 



sometimes a little drooping. 



1. Growing in or near water. Stems reed-like, three^ 



to five feet high ; leaves densely tufted, long, 

 upright, never floating. Panicle two to eight 

 inches long, often with a reddish tinge, per- 

 fectly upright 



2. Growing on moors or peat-bogs. Stems one to two 



feet high, with only one visible knot, and that 

 near the base. Panicle two to eight inches long ; 

 reddish-purple, sometimes greenish ; perfectly 

 upright; anthers and stigmas reddish-purple .. 51. Puepijj Mooe-geass, 



3. Not growing habitually on moors, or in water ; gene- 



rally in cultivated land, or by dry waysides. 

 o. Flowers brownisli-yellow ; outer glumes veryN 

 pointed ; plant perfectly glabrous ; stamens 

 two, large, and hanging out loosely. Stem 

 six to fifteen inches high. Panicle perfectly 

 upright. Spikelets one -flowered. (Fig. 201), 



ElBBON- GRASS (whilo 



young). 



3. Sweet-scented Vee- 



NAl-GEASS. 



