46 FLORA OF PHILADELPHIA. 



Bucks— Hoot 's Dam (Fr.). Delaware^Me&ia, (B. Sm.). Chester— 

 *- (P.). Lancaster— (P.) . Northampton— (P.)- Dauphin— (P.). 



Camden— Lindenwold (VP.). Gloucester— Mickleton (He.), Swedes- 

 boro (Li.). 

 New Castle— Low meadows, frequent. 



39. AVENA L. 

 1. A vena fatua L. TP'iZa' Oat. M. p. 118. Ballast. Summer. 

 Camden — Camden, I. Burlc (He.). 



40. ARRHENATHERUM Beauv. : 

 1. Arrhenatherum elatius (L.) Beauv. Oat-grass. M. p: 118. Fields 

 and waste places. Summer. 

 Philadelphia — Byberry, Mart. (B. C), West Park, below Woodside 

 (VP.). Bucks— Langhorne'(VP.).' Montgomery— Green Lane (VP.). 

 . .Chester— Thorndale (St.). , Lehigh— Coplay (Kr.). ; . , 



Camden— Sicklerville (Ke.). Gloucester— Mulliea Hill (H?-)., Swedes- 

 boro (Li.). Monmouth — Shark River (O). 

 New Castle— Fields and meadows,, frequent. 



41. DANTHONIA DC. Wild Oat-grass. 



Empty scales 1,25 cm. long or' less L j sheaths glabrous or sometimes sparingly 

 pubescent at the base. 

 Teeth of the flowering scale about 1 mm. long, acute : t culm leaves short ; 



panicle contracted. 1. D. spicata. 



Teeth of the flowering scale 2-3 mm. long, awned; culm leaves elon- 

 gated; panicle usually open. _ ' i 2. , D. ■ o&mpressa. 

 Empty scales more than 1.25 cm. long; leaf sheaths , villous. 



3. D. sericea. 



1. Danthonia spicata (L.) Beauv. M.:p. 1J.9. , Dry orj rocky soil. Sumr. 



mer. < ,,. 



2. Danthonia compressa Austin. M. p. 119. Woods. Summer. 



Berks— Hamburg (He.) (Ke.)..' 

 Gloucester— Swedesboro . (Li.). . 



3. Danthonia sericea Nutt. M. p. 119. Dry sandy soil. Summer. 



Burlington— Speedwell (St.),' Brown Mills (Te.). : Camden— Spring 

 Garden (C), Lindenwold, Cedar Brook (VP.). Gloucester — Williams- 

 town (He.), Swedesboro (Li.). Cape May— Batsto (He.). Atlantic — 

 Egg Harbor, Dr.' Geo: ■ Smith >(Fu.}, Hammonton (Te.). Ocean— Man- 

 chester (C.)j Forked River , (Mac.) . Monmouth— Ocean Beach (C). 



42. CAPRIOLA Adans. 



1. Capriola Dactylon (L.) Kuntze. Bermuda or Scutch-grass. M. p. 119. 

 Fields and waste places. Summer. 

 Philadelphia— Navy Yard, Dr. Geo. Smith (Fu.), streets (Ha.).' Bucks 

 —Bristol (P.). Delaware— Marcus Hook (P.). Northampton— Bethle- 

 hem (P.). 



Camden— Camden (He.). Gloucester— Mantua (He.), Swedesboro (Li.). 

 Salem— Shores of Delaware (C). 

 New Castle— New Castle, Wilmington, Commons. 



