44 CYPERACEAE 



and adventive northward. — Pennsylvania : Phii,adei,phia, on and 

 about ballast. 



7. Cyperus Sshweinitzii Torn Schweinitz's Cyperus. (Man. p. 

 162; I. F. /. 55/. ) In moist sandy soil, Ont. to Pa., the N. W. Terr., 

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



8. Cyperus dentatus Torn Toothed Cvperus. (Man. p. 163; I. F. 

 y. 556.) In sandy swamps and on river shores, Me. to W. Va. and S. C. 



— Pennsylvania : Northampton ; Bucks ; Lancaster ; Dauphin ; 

 York. 



9. Cyperus rotundus L. Nut-grass. (Man. p. 163 ; I. F. /.S57-) 

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

 Old World. — Pennsyh'ania : Northampton, Bethlehem; Dei^aware. 



10. Cypereus esculentus L. Yellow Nut-grass. (Man. p. 163 ; 

 I. F.y. §^g. ) In moist fields, N. B. to Minn., Fla. and Tex. Also on the 

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

 Pennsylvania : Northampton ; Philadelphia ; Delaware ; Lancas. 

 TER ; Dauphin ; Franklin ; Huntingdon ; Chester. 



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

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

 — Pennsylvania : Dauphin, Forster's Island ; Phil.^.delphia, on the 

 Schuylkill; Delawake. 



12. Cyperus strigosus L. Str.\w-colored Cyperus. (Man. p. 

 164; I. F. /. S^3-) IQ moist meadows and swamps. Me. to Minn., Fla. 

 and Tex.— /V«;wj/z^a«/a.- Northampton ; Philadelphia; Chester; 

 Delaware ; Lancaster ; Franklin ; Huntingdon ; Erie. 



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

 12b. C. strigosus capltatus Boeckl. (Man. p. 164. ) Lancaster. 

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



13. Cyperus refractus 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. /. 5(5/. ) In dry, sandy soil, N. J. to Ark., Fla. and Tex. — Pennsyl- 

 vania : Philadelphia ; Chester. 



15. Cyperus ovularis (Micbx.) Torr. Globose Cyperus. (Man. p. 

 165 ; I. F. /. S70-) lo (Iry 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. L.a.ncaster Cyperus. (Man. 

 p. 165; I. F. / 368.) 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. /. J//.) In dry fields and on hills, R. I. to Ont., Minn., Fla., Kans., 

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

 Huntingdon ; Erie ; Franklin ; Delaware. 



