388 MONOCOTYLEDONOUS PLANTS. 



paleae shorter than the glume, outer one 5-nerved ; stipule oblong. 

 A. tlr.ru tn !>< nt MM. A. stolontfera Smitli. 



HAB. Meadows. N. S. .Tune Aug. .Root creeping. Cuh,, 



assurgent, often throwing out runners. Leaves nerved, scabrous. 



AnUurs yellow. Introduced. Iiorin Grass. 



4. A. lateriflora Midi. : culm erect, branched above, soboliferous at 

 base ; panicles lateral and terminal, contracted, dense, a little secund ; 

 glume acuminate ; paleae longer than the glume, equal, pubescent at 

 base, awnless. A. m'exicana MuhL 



b. fliformis Torr. : panicle very slender : paleae nearly equalling 



the glume. A.Jiltformis MuhL 

 HAB. Swamps. N. S. Aug., Sept. 2[.Root creeping. Culm 



2 feet or more high. Leaves broad linear, flat. Antficrs pale 



purple. 



5. A. sobollfera Muld. : culm erect, branched ; panicle contracted, 

 filiform, simple, with appressed alternate brandies ; pale longer than 

 the equal glumes, equal, awnless, hairy at base, mucronate at the tip. 



HAB. Rocky hills. N. S. Aug., Sept. U . Culm 2 feet high, 

 soboliferous, sometimes decumbent. Leaves pale green, some- 

 what scabrous. 



(5. A. tenuiflora Wlttd. : culm nearly simple, pubescent about the 

 joints ; branches appressed ; panicle contracted, filiform ; paleae longer 

 than the glume ; lower one with an awn twice as long as the flower. 

 HAB. Rocky woods. Can. to Car. July, Aug. 1. Root 

 creeping. Culm 3 feet or more high. Leaves few, spreading, 

 strongly nerved. 



7. A. sylvatica Torr. : culm erect, much branched, diffuse, smooth ; 

 sheinhs lacerate ; panicle filiform ; paleae longer than the glume ; 

 awns three times as long as the flower. A. diffusa MuhL 



HAB. Rocks. N. J. Aug. !. I(0oJ creeping. Culm 23 

 feet high. Resembles the preceding, but is distinguished by its 

 branched diffuse culm. 



8. A. compressa Torr. : whole plant very smooth ; culm erect, com- 

 pressed, simple ; panicle oblong, subcontracted ; glumes equal, shorter 

 than the palese, acute ; palece rather obtuse, smooth at the base. 



HAB. Sandy swamps. N. J. Sept. 1. Root creeping. Culm 

 soboliferous Leaves linear, long, compressed, with carinate 

 sheaths. Panicle purple. 



9. A. serotina Torr. : culm filiform, much compressed ; leaves very 

 narrow, carinate, erect ; panicle attenuate ; glume unequal, half as 

 long as the awnless paleee. 



HAB. Sandy swamps. N. J. Sept. If. Culm 1218 inches 

 high. Leaves almost filiform. Panicle slender, with the branch- 

 es flexuous. 



10. A. juncea Mich. : leaves straight and erect, convolutely setace- 

 ous ; panicle oblong-pyramidal, verticillate ; palese awnless, twice the 

 length of the glume. A. indica MuhL 



