60 TRIANDRIA, DIGYNIA. 



Easily recognised by its dingy purplish colour, and obliquely 

 decumbent culms. Along sandy and gravelly way-sides, com- 

 mon both this, and the Jersey side of the Delaware. Annual. 

 July, August. 



pratensis. 6. P. panicle diffuse, spikes four-flowered, glumes 

 lanceolate 6-nerved, ligula short obtuse. Smith* 



miid. 



Icon. Engl. Bot. t. 1073. 



Common Spear-grass. 



Introduced, and naturalized, being found every where in 

 grassy fields . Perennial. June. 



triviaiis. 7- P. panicle diffuse, spikes 3-flowered, glumes lan- 

 ceolate 5-nerved, ligula long. Smith. Willd. 

 Icon. Engl. Bot. t. 1072. 



Rough-stemmed Spear-grass. 



Also introduced and naturalized. In meadows and fields 

 common with the preceding, and very like it ; easily distin- 

 guished, however, by the ligula, which is short, truncate or 

 obtuse in No. 6, and long, more inclining to acute in the pre- 

 sent species. Perennial. June to August. 



viridis, 8. P. leaves flat, linear, abruptly acute ; panicle 

 Muh1 ' somewhat crowded ; spikes ovate, acute, four- 



flowered. Elliot. 



P. angustifolia, Smith. ? 



P. pratensis, Schrader. 



Green Meadow-grass. Green-grass. 



About twelve or eighteen inches high, with leaves of a re- 

 markably deep green colour. In meadows and grass plots, 

 common. It affords good fodder. (Muhl.) Root perennial, 

 creeping. May, June. 



nemta. 9. P. culm 3 feet high, terete, striate, glabrous point- 

 ed. Leaves alternate amplexicaule horizontal, 

 lanceolate smooth striate, carinate. Ligula short 

 ovate. Sheath smooth, striate* Panicle terminal 



