36 FLOEA OF PHILADELPHIA. 



Sheaths glabrous, or merely pubescent on the margins ; 



panicle open, its branches spreading. 



34. P. macrocarpon. 

 Sheaths hispid; panicle contracted, its branches ap- 



pressed. 29. P. xanthophysum. 



1. Panicum verrucosum. M. p. 81. Moist soil. Summer. 



Bucks— Bristol (Fr.), Delaware— Darby, Tinicum, (Fu.) (B. Sm.). 



Camden— Clementon (Ja.), Haddonfield (VP.). Gloucester— Wood- 

 bury (C), Mickleton (He.), Tomlin (Ke.), Swedesboro (Li.). Cape May 

 — Anglesea (U. C. S.). Atlantic— Landisville (C). Ocean— Manchester 

 (C), Forked River (Ja.) (Wn.). Monmouth— Seabright (C). 



New Castle— Thompsons, Farnhurst, etc. 



2. Panicum capillare L. Old-witch grass. M. p. 81. Dry soil. Summer. 



3. Panicum Philadelphicum Bernh. M. p. 82. Dry woods and thickets. 



Summer. 

 Philadelphia— (P.). Bucks— Nockamixon (P.), Sellersville (Fr.). Lan- 

 caster— (P.). 

 i, Panicum flexile (Gattinger) Scribn. M. p. 82. Moist or dry soil. 

 Autumn. 

 Lancaster — DilleTville Swamp (P.). 



5. Panicum miliaceum L. Millet. M. p. 82. Ballast and waste places. 



Summer. 



6. Panicum proliferum Lam. M. p. 82. Wet soil. Late summer. 



7. Panicum virgatum L. M. p. 82. Moist or dry soil. Late summer. 



8. Panicum amakum Ell. M. p. 83. Sea beaches. Autumn. 



9. Panicum agrostoides Spreng. M. p. 83. Moist soil. Summer. 



Bucks— Point Pleasant, Britton (Fr.). 



10. Panicum longifolium Torr. M. p. 83. Moist soil. Summer. 



Montgomery — (P.) . Northampton — (P.) . 



11. Panicum rostratum Muhl. M. p. 83. Moist soil. Summer. 



12. Panicum stipitatum Nash. M. p. 83. Moist soil. Summer. 



Philadelphia— (P.) . Northampton — (P.) . 



13. Panicum depauperatum Muhl. M. p. 83. Dry places. Summer. 

 ,14. Panicum linearifolium Scribn. M. p. 83. Dry soil. Summer. 



Bucks— Perkasie (Fr.), Nockamixon (Pr.). Delaware— (P.). Berks— 

 (P.). Northampton— (P.). 



15. Panicum dichotomum L. M. p. 84. In woodlands and thickets. Early 



summer. 



16. Panicum lucidum Ashe. M, p. 85. Sphagnum bogs. Summer. 



Montgomery— Fiaaei'B Bog, Willow Grove (VP.). 

 Camden— Grenloch (He.). 



17. Panicum barbulatum Miehx. M. p. 85. Moist soil. Summer. 

 Philadelphia— Germantown (St.). Bucks— Tullytown (Fr.). Delaware 



—Tinicum (St.) (VP.), Crum Creek (St.). Chester— Coatesville, West 

 Chester (St.). Lancaster— (P.). Northampton — (P.). 



Camden— Grenloch (He.), Clementon (VP.). Gloucester— Swedesboro 

 (Li.). Cape May— Wildwood (He.) (Ja.). 



