POI.YGONACBAE 117 



14. Polygonum hydropiperoides Michx. Mii,d Watbr PbppER. 

 (Man. p. 362 ; I. F. /. 1332.) In swamps or wet soil, N. B. to Calif., Fla. 

 and Mex. — Pennsylvania: Northampton; Dauphin; Franki,in ; 

 Bucks ; Chester ; Lancaster ; Pike ; Dei<aware ; Allegheny. 



15. Polygonum punctatum Ell. DOTTED or Water Smart wbbd. 

 (Man. p. 362 ; I. F. /. 1334.) In swamps and wet places, throughout N. 

 Am. except the extreme north. — Pennsylvania : Northampton ; Lan- 

 caster ; Franklin ; Erie ; Allegheny. 



16. Polygonum Careyi Olney. Carey's Persicaria. (Man. p. 362; 

 I. F. /. 1329.) In marshes, Mich, to R. L, N. J. and 7a.— Pennsyl- 

 vania : Monroe, Pocono Summit ; Carbon. 



17. Polygonum Hydropiper L. Smart-weed. Water Peppbr. 

 ( Man. p. 362 ; I. F. _/. 1333- ) In moist waste places, almost throughout 

 N. Am. Nat. from Eu. — Pennsylvania : Northampton ; Bucks ; Ches- 

 ter ; Lancaster ; Monrob ; Franklin ; Delaware ; Allegheny. 



18. Polygonum orientale L. Prince's Feather. (Man.'p. 363; I. 

 ^- /• Jf33S-) In waste places, generally escaped in eastern N. Am. Nat. 

 of India. — Pennsylvania : Northampton ; Lancaster ; Bucks ; Frank- 

 lin ; Chester ; Dauphin ; Delaware ; Allegheny. 



19. Polygonum sagittatum L. Arrow-lEavEd Tear-Thumb. (Man. 

 p. 366 ; I. F.y^ Z354-) In wet soil, Newf. to the N. W. Terr., Fla. and Kans. 

 —Pennsylvania : Northampton ; Bucks ; Erie ; Franklin ; Chester ; 

 Lancaster ; York ; Monroe ; Delaware ; Allegheny. 



20. Polygonum arifolium L. HalbERD-lEaved Tear-Thumb. (Man. 

 p. 366 ; I. F. / 1355-') In mo t or wet soil, N. B. to Minn., S. C. — 

 Pennsylvania : Northampton ; Franklin ; Huntingdon ; Bucks ; 

 Chester ; Lancaster ; Delaware, Tinicum ; Allegheny. 



21. Polygonum Zuccarinii Small. JAPANESE KnoTWEED. (Man. p. 

 366 ; I. F.y. /3S3-) Escaped from cultivation, Pa., N. Y., N. J. and Mo. 

 Nat. of Japan. — Pennsylvania: Philadelphia; Bucks. 



22. Polygonum Convolvulus L. Black Bindweed. (Man. p. 365 ; 

 I. F. f. 1348. ) In waste or cult, grounds, nearly throughout N. Am. 

 except the extreme north. Nat. from Eu. Native of Asia. Pennsyl- 

 vania : Northampton ; Bucks ; Franklin ; Lancaster ; Monroe ; 

 Chester ; Delaware ; Allegheny. 



23. Polygonum cUinode Michx. Fringed Black Bindweed. 

 (Man. p. 365; I. F.y. 1349.) In rocky places N. S. to Minn, and Pa., 

 south in the AUeghauies to N. C. — Pennsylvania : Monroe ; North- 

 ampton ; Perry ; Lackawanna ; Tioga ; Allegheny. 



24. Polygonum acandeuB L. Climbing False Buckwheat. (Man. 

 p. 365; I. F.y. 1350.) In woods and thickets, N. S. to Ont. and the 

 Rocky Mountains, Fla. and Tex. — Pennsylvania : Northampton ; 

 Bucks ; Erie ; Franklin ; Lancaster ; Perry ; Lackawanna ; 

 Chester; Delaware; Allegheny. 



25. Polygonum cristatum Engelm. & Gray. CRESTED False Buck- 

 wheat. (Man. p. 366 ; I. F./. 1352.') Sandy woods and rocky banks. 



