44 CYPERACEAE 



and adventive northward. — Pennsylvania : Phii<adEi,phia, on and 

 about ballast. 



7. Cyperus SohweinitzU Torr. Schweinitz's Cyperus. (Man. p. 

 162; I. P.f-SS'^-) 1° moist sandy soil, Ont. to Pa., the N. W. Terr., 

 Minn., and Kans. — Pennsylvania : ERIE, Presque Isle. 



8. Cyperus dentatus Torr. Toothed Cyperus. (Man. p. 163; I. P. 

 /. J5<5.) In sandy swamps and on river shores. Me. to W. Va. and S. C 



— Pennsylvania : Northampton ; Bucks ; Lancaster ; Dauphin ; 

 York. 



9. Cyperus rotundua L. Nut-Grass. (Man. p. 163 ; I. F. /. 557.) 

 In fields, Pa. to Pla., Kans. and Tex. Nat. Also in tropical Am. and the 

 Old World. — Pennsylvania: Northampton, Bethlehem; Dei<aware. 



10. Cypereus esculentua L. YEi,i,ow Nut-grass. (Man. p. 163 ; 

 I. F.y. S59- ) 1° moist fields, N. B. to Minn., Fla. and Tex. Also on the 

 Pacific Coast from Calif, to Alaska, in tropical Am. and ths Old World. — 

 Pennsylvania : Northampton ; Phii,adei,phia ; Dei,aware ; Lancas. 

 TER ; Dauphin ; Franklin ; Huntingdon ; Chester. 



11. Cyperus eiythrorhlzos Muhl. Red-rooted Cyperus. (Man. 

 p. 163 ; I. F. f. 560.) In wet soil., Ont. to Calif., Mass., Fla. and Tex. 

 —Pennsylvania : Dauphin, Forster's Island ; Phii,adei,phia, on the 

 Schuylkill ; Delaware. 



12. Cyperus strlgosus Iv. Straw-colored Cyperus. (Man. p. 

 164; I. F. /■ S^5-) I1 moist meadows and swamps, Me. to Minn., Fla. 

 and Tex. — Pennsylvania : t^os-T^fiMvlOTX ; Philadelphia; Chester; 

 Delaware ; Lancaster ; Franklin ; Huntingdon ; Erie. 



12a. C. strigosus robustior Kuuth. ( Man. p. 165. ) Bucks. 

 12b. C. stilgosus capitatus Boeckl. (Man. p. 164.) Lancaster. 

 12c. C. strigosus compositus Britton. Lancaster ; Philadelphia. 



13. Cyperus reiiractus Engelm. ReflExed Cyperus. (Man. p. 

 165 ; I. F. _/". ^66. ) In dry fields, N. J. to Mo. and N. C. — Pennsylvania : 

 Delaware. 



14. Cyperus retrofractus (L.) Torr. Rough Cyperus. (Man. p. 165; 

 I. F. / 567. ) In dry, sandy soil, N. J. to Ark., Fla. and Tex. — Pennsyl- 

 vania • Philadelphia ; Chester. 



15. Cyperus ovularia(Michx.) Torr. Globose Cyperus. (Man. p. 

 165 ; I. F. /. S70-) In dry fields and on hills, N. Y. to Kans., Fla. and 

 Tex. Pennsylvania : Lancaster, mouth of the Tucquan Creek, Safe 

 Harbor ; Bucks. 



16. Cyperus Lancastriensis Porter. Lancaster Cyperds. (Man. 

 p. 165 ; I. F. /. 5(55. ) In dry fields, N. J. and Pa. to Va. and Ala.— 

 Pennsylvania: Lancaster, Safe Harbor, McCall's Ferry; Philadel- 

 phia, on the Schuylkill ; Bucks. 



17. Cyperus filiculmis Vahl. Slender Cyperus. (Man. p. 165; I. 

 F. /. 57/.) In dry fields and on hills, R. I. to Out., Minn., Fla., Kans., 

 Tex. and northern Mex. Pennsylvania : Northampton ; Lancaster ; 

 Huntingdon ; Erie ; Franklin ; Delaware. 



