COMPOSITAE . 335 



4. Bidens comosa (A. Gray) Wiegand. LEa fy-br acted Tickseed. 

 (Man. p. looi \ \. V. f. 3941.) In wet soil, southern N. Y. and Mass. to 

 111. — Pennsylvania : Northampton ; Bucks ; Montgomery ; Lancas- 

 ter. 



5. Bidens bidentoides (Nutt. ) Britton. Swamp Beggar-Ticks. 

 (Man. p. looi ; I. V.f. 3942.) Muddy shores, Pa., N.J., Del. and Md. — 

 Pennsylvania : Bucks, Bristol ; Delaware, Tinicum. 



6. Bidens discoidea (T. & G.) Britton. Small Beggar-ticks. 

 (Man. p. 1002 ; I. F. f. 3943.) In swamps and wet places. Conn, to Va., 

 Ohio, Mich., La. and Tex. — Pennsylvania: Northampton, on Dela- 

 ware above Easton ; LuzERNE, Lily Lake. 



7. Bidens frondosa L- Black Beggar-ticks. (Man. p. 1002.) In 

 moist soil, N. B. to Fla., Neb. and Tex. — Pennsylvania : Northampton ; 

 Perry ; Bucks ; Blair ; Delaware. 



8. Bidens vulgata Greene. Tall Beggar-Ticks. (Man. p. 1002 ; 

 I. F./.3944.) In moist soil, Ont. to B. C, N. C. and Calif.— Pennsyl- 

 vania : Northampton ; Bucks. 



9. Bidens bipinnata L. Spanish Needles. (Man. p. 1002; I. F. /. 

 3943.) In various situations, R. I. to Fla., west to Ohio, Neb. and Ariz. 

 Also in Mex. and tropical Am., and introd. in southern Eu. and Asia. — 

 Peftnsylvania : Northampton ; Bucks ; Delaware ; Chester ; Lan- 

 caster ; Franklin ; Huntingdon ; Allegheny. 



10. Bidens involucrata (Nutt. ) Britton. Long-bracTEd Tickseed- 

 SUNFLOWER. (Man. p. 1003; I. F. /■ 3949.) In swamps, 111. to Kans., 

 Ark. and Tex. — Pen?isylvania : Delaware, Tinicum. 



11. Bidens trichosperma (Michx.) Britton. T.A.LL Tickseed-Sun- 

 FLOWER. (Man. p. 1002 ; I. F. /". 3947.) In swamps and wet meadows, 

 Mass. to Ga., 111. and Ky. — Pennsylvania : Bucks, Bristol ; Delaware, 

 Tinicum ; MERCER. 



12. Bidens Beckii Torr. WaTER Marigold. (Man. p. 1003 ; I. F. 

 f. 3930.) In ponds and streams, Quebec to N. J., west to Man. and Mo. 

 — Pennsylvania : Erie, Presque Isle. 



35. GALINSOGA R. & P. 



1. Galinsoga parviflora Cav. Galingosa. (Man. p. 1004; I. F. /. 

 39S4-) In waste places, eastern Mass. to Ore., N. C, Kans. and Mex. 

 Nat. from tropical Am. — Pennsylvania : Northampton, Bethlehem ; 

 Bucks ; Delaware ; Chester ; Dauphin ; Lancaster ; Franklin ; 

 Columbia ; York ; Huntingdon ; Luzerne ; Lebanon ; Allegheny. 



la. G. parviflora hispida DC. (Man. p. 1004.) — Northampton; 

 Bucks ; Philadelphia. 



36. MARSHALLIA Schreb. 



1. MarshalUa grandiflora Beadle and Boynton. Great Marshallia. 



In dry soil, Pa. to N. C. — Pennsylvania : Fayette. 



