332 COMPOSITAE 



2. Helianthus annuus L. Common Sunflower. (Man. p. 991; I. 

 F.y. S900.) On prairies and in waste places, Minu. to the N. W. Terr., 

 Mo. and Tex. Escaped in the east. — Pennsylvania : Northampton ; 



Al^LEGHENY. 



3. Helianthus petiolaris Nutt. Prairie Sunfi^ower. (Man. p. 

 992 ; I. F. /. J90/.) On dry prairies, Minn, and the N. W. Terr, and 

 Ore., south to Mo. and Ariz, and sparingly eastward. — Pennsylvania: 

 Erie, Presque Isle ; Northampton, Bethlehem. 



4. Helianthus microcephalus T. & G. Small Wood Sunflower. 

 (Man. p. 993 ; I. F. f. 3go6. ) In moist woods and along streams, Pa. 

 to Ga., west to Ohio, Mo. and La. — Pennsylvania : Greene ; Fayette ; 

 Allegheny; Armstrong. 



5. Helianthus giganteus L. Tall Sunflower. (Man. p. 993; I. 

 V. f. jQoy.) In swamps and wet meadows, Me. and Ont. to the N. W. 

 Terr., south to Fla., Neb. and La. — Pennsylvania : Northampton; 

 Bucks ; Delaware ; Chester ; Lancaster ; Lebanon ; Perry ; Fay- 

 ette ; Armstrong. 



6. Helianthus Maximilianii Schrad. Maximilian's Sunflower. 

 (Man. p. 993 ; I. F. /. 3908.) On dry prairies, Minn, and Man. to the 

 N. W. Terr., Neb. and Tex. — Pennsylvatiia : Allegheny. 



7. Helianthus grosse-serratns Martens. Sawtooth Sunflower. 

 (Man. p. 994; I. F. /. jgog.) In open places, eastern L. I. to Pa., S. 

 Dak., Mo. and Tex. — Pennsylvania : Erie, Union City; Allegheny. 



8. Helianthus divarioatus L. Rough or Woodland Sunflower. 

 (Man. p. 994 ; I. 'P./.-jgio.) In dry woodlands, Me. to the N. W. Terr., 

 south to Fla., Neb, and La. — Pennsylvania: Northampton; Bucks; 

 Delaware ; Chester ; Lancaster ; Franklin ; Huntingdon ; Alle- 

 gheny. 



9. Helianthus mollis Lam. Hairy Sunflower. (Man. p. 994; I. 

 F. f. sgn.) In dry soil, Ohio to Ga., Iowa, Kans. and Tex., and nat- 

 uralized eastward. — Pennsylvania : Delaware, Tinicum ; Allegheny. 



10. Helianthus deoapetalus L. Thin-leaved Sunflower. (Man. 

 p. 994; I. F- /■ sgfj-) In moist woods and along streams, Quebec to 

 Mich., Ga. and ILy.— Pennsylvania : Northampton; Bucks; Dela- 

 ware ; Chester ; Lancaster ; Franklin ; Columbi.a ; Allegheny ; 

 Washington. 



11. Helianthus tracheliifolius INIill. Throatwort Sunflower. 

 (Man. p. 995 ; I. F.y. 3914. ) In dry soil, Pa. to Ohio to Wis. — Pennsyl- 

 vania : Northampton ; Bucks ; Westmoreland ; Delaware. 



12. Helianthus strumosus L. Pale-Leaved Wood Sunflower. 

 (Man. p. 995; I. F. y". jp/j. ) In dry woods and on banks. Me. and 

 Ont. to Minn., Ga. and Ark. — Pennsylvania : Northampton ; Bucks ; 

 Chester ; Lancaster ; York ; Erie ; Allegheny. 



12a. H. strumosus macrophyllus (Willd.) Britton. (Man. p. 995.) 

 Mass. to Pa., Iowa and Miss. — Northampton ; Lancaster. 



