GRAMINEAE 21 



17. Panicum dlchotomum h. Forked Panicum. (Man. p. 84 ; I. 

 F. /. 264.) In woodlands and thickets, N. Y. to Ky., Mo., and south- 

 ward. — Pennsylvania : Northampton ; Phii,adei,phia ; Chester ; 

 Pike; Lancaster; Dei,aware, Tinicum. 



18. Panicum barbulatum Michx. Barbed Panicum. (Man. p. 85; 

 I. F. /. 2<5y. ) Moist soil, N. Y. to Fla. and Tex. — Pennsylvania : 

 Northampton ; Chester ; Bucks ; DEI/Aware, Tinicum ; Lancaster. 



19. Panicum boreale Nash. Northern Panicum. (Man. p. 85 ; I. F. 

 f. 261.) Moist, often rich soil, Newf. and Ont. to Vt., Pa. and Minn. — 

 Pennsylvania : Monroe, Pocono Summit, Tobyhanna ; Northampton. 



20. Panicum nitidum Lam. Shining Panicum. (Man. p. 85 ; I. F. 

 /. 26j.) Common in dry sandy soil in the Eastern and Middle States. — 

 Pennsylvania : Monroe ; Northampton ; Bucks ; Dei,aware ; Lan- 

 caster ; AHEGHENY. 



21. Panicum implicatum Scribn. Hairy-paniclEd Panicum. (Man. 

 p. 86; I. F./. 26ya.) In dry soil. Me. to Conn., N. Y. and N. J. — Penn- 

 sylvania : Northampton. 



22. Panicum unciphyllum Trin. Hairy Panicum. (Man. p. 86, as 

 P. pubescens ; I. F. f. 26^.) In dry soil. Me. and Quebec to B. C, Ga. 

 and Ariz. — Pennsylvania: Northampton; PikE; Bucks ; Monroe ; 

 Phii,adei,phia ; Chester ; Franklin ; Lancaster ; Montgomery ; 

 Delaware. 



23. Panicum Atlanticum Nash. Atlantic Panicum. (Man. p. 86 ; 

 I. F. /. 26yf. ) Dry soil, N. Y. to Va. — Pennsylvania : Northampton. 



24. Panicum Tennesseense Ashe. Tennessee Panicum. (Man. p. 

 1040.) In woods, N. Y. to 111., Tenn. and Fla. — Pennsylvania: North- 

 ampton ; Lancaster. 



25. Panicum scopailum Lam. Velvety Panicum. (Man. p. 87, 

 as P. viscidum ; I. F. /. 266. ) In moist soil, N. J. to Ind. , I. Terr. , Fla. 

 and Texas. — Pennsylvania : Delaware, Tinicum. 



26. Panioimi Scribnerianum Nash. Scribner's Panicum. (Man. 

 p. 87 ; I. F. /. 2jg.) In dry or moist soil. Me. to Minn., south to Va. 

 and Ariz. — Pennsylvania : Lancaster, Safe Harbor ; Chester, barrens ; 

 Northampton, Easton; Bucks; Philadelphia; Delaware; Erie. 



27. Panicum xanthophysum A. Gray. SLENDER Panicum. (Man. 

 p. 87 ; I. F. / 238.) Dry soil, Me. to Man., N. J. and 'P&an.— Pennsyl- 

 vania : Bucks, TuUytown ; Lycoming ; Luzerne. 



28. Panicum spbaerocarpon Ell. Round-FruiTEd Panicum. (Man. 

 p. 88 ; I. F.y. 2^2.) Dry soil, southern Ont., and Mo., to Fla., Tex. and 

 Mex. — Pennsylvania : Northampton ; Luzerne ; Chester ; Bucks ; 

 Philadelphia ; Delaware ; Montgomery. 



29. Panicum polyanthesSchult. Small-FRUiTEd Panicum. (Man. 

 p. 88; I. F. f. 2^s-) Woods and thickets, southern N. Y. to Pa. and 

 Mich., south to Fla., La., Neb. and Tex. — Pennsylvania: Perry, on 

 Susquehanna ; LANCASTER, Tucquan Island ; Philadelphia ; Bucks ; 

 Chester ; Delaware.- 



