GRAMINBAE 23 



3. Chaetocbjoa -viiidls (L.) Scribn. GrEEn FoxTaii,-grass. (Man. 

 p. 90 ; I. F.y. 282.) In waste places and cultivated grounds, throughout 

 N. A., except the extreme north. Naturalized from Europe. — Pennsyl- 

 vania : Delaware ; Chester ; Bucks ; Northampton ; PrankIvIn ; 

 Lancaster ; Erie ; Philadelphia. 



4. Chaetochloa Italica (L. ) Scribn. Italian MillET. Hungarian 

 Grass. (Man. p. 90; I. F./i 28j.) In waste places, Quebec to Minn., 

 Neb., Fla. and Tex. Native of the Old World. — Pennsylvania : Ches- 

 ter ; Northampton ; Luzerne ; Lycoming ; Bucks ; Philadelphia ; 

 Allegheny. 



12. CENCHRUS L- 

 1. Cenchrua tiibuloides L. Bur-grass. Hedgehog-grass. (Man. 

 p. 90 ; I. F. _/ 284. ) On sandy shores and in waste or cultivated places. 

 Me. to Minn., Colo., Fla. and Tex. — Pennsylvania: DELAWARE; CHES- 

 TER i Bucks ; Luzerne ; Northampton ; Lancaster ; Dauphin ; 

 Philadelphia. 



13. ZIZANIA L. 

 1. Zizania aquatioa L. Wild or Indian Rice. Water Oats. 

 (Man. p. 91 ; I. F. /. 286.) In swamps, N. B. to Man ..south to Fla. and 

 ten.— Pennsylvania : Delaware ; Chester ; Philadelphia ; Bucks ; 

 Lancaster, in Susquehanna above Marietta ; York ; ERIE, Presqne 

 Isle. 



14. HOMALOCENCHRUS Mieg. 



Stamens i or 2 : panicle-branches singly disposed, usually less than 8. 



I. H. Virginicus. 

 Stamens 3 : panicle-branches, at least the lower ones, in whorls or approxi- 

 mately in pairs, usually exceeding 15. .i. H. oryzoides. 



1. HomalocenchusVirgiiiicus(Willd.)Britton. White GRASS. (Man. 

 p. 91 ; I. F.y. ^cS/. ) In swamps or wet or moist woods. Me. to Minn., Fla., 

 Kans. and Tex. — Pennsylvania : Delaware ; Chester ; Bucks ; North- 

 ampton ; Franklin ; Lancaster ; Huntingdon ; Erie, Fenno ; Phil- 

 adelphia ; Monroe ; York. 



2. Homalocencbrus oryzoides (L.) Poll. RiCE Cut-grass. (Man. 

 p. 91 ; I. F. /. 288.) In swamps and along streams, N. S. to Ont., Fla., 

 Kans. and Tex. — Pennsylvania: Delaware; Chester; Bucks; Lu- 

 zerne ; Northampton ; Lancaster ; Erie ; Montgomery ; Jefeer- 

 SON ; Philadelphia ; Franklin ; Pike ; Monroe. 



15. FHALARIS L. 



Outer scales of the spikelets not winged. i. P. arundinacea. 



Outer scales of the spikelets manifestly winged. 2. P. Canariensis. 



1. Fbalaris arundinacea L. REED Canary-grass. (Man. p. 92 ; I. 

 F.y. 2go. ) In moist or wet soil, N. S. to B. C, south to N. J., Ky., Kans. 

 andNev. Also in Eu. and Asia. Pifwwiy^z'ama .■ DELAWARE ; Philadel- 

 phia ; Chester ; Bucks ; Northampton ; Luzerne ; Huntingdon ; 

 Erie ; Monroe ; Lancaster ; Susquehanna ; Allegheny. 



