COMPOSITAE 603 



22. S. uniligulata (DC.) Porter. Bogs, Newf. to N. J., Ont. and 



111. 



Conn. Rare and scattered. 



N. Y. Van Cortlandt Park. 



N. J. Local on the coastal plain. 



Perhaps not specifically dis.inct from 5. neglecta. 



23. S. canadensis L. Hillsides, thickets and stream-banks, Newf. 



to Sask., Va. and Tenn. 

 Conn. Recorded only from Lyme. 

 N. J. Passaic Co. 

 Pa. Luzerne Co. 



24. S. serotina Ait. In moist soil: Newf. to B. Col., south to 



Ga., Tex., Nev. and Ore. 



Throughout the range, except the pine-barrens and Cape May 

 Co., there wanting. A large form is frequently found with the type. 

 It has been called 5. serotina gigantea (Ait.) A. Gray. 



25. S. altissima L. Dry soil, Me. to Ont., Ga. and Tex. 



Common throughout the range, except the pine-barrens; pre- 

 viously confused with 5. canadensis. 



26. S. nemoralis Ait. (S. nemoralis arenicola Burgess). In dry 



soil: Que. to the N. W. Terr., Fla. and Tex. 

 Common throughout the range. 



27. S. rigida L. In dry sandy, rocky or gravelly soil: Ont. to the 



N. W. Terr., south to Ga., Tex. and Colo. 



Conn. Rare and local, but scattered over most of the state. 



N. Y. Rare on L. I., unknown on S. I. and in the Bronx, thence 



increasing northward. 

 N. J. Locally north of the coastal plain. 

 Pa. Northampton, Lehigh, Bucks and Chester counties, not 



common. 



A plant with a confusing distribution not as yet fully understood. 



The occurrence of S. racemosa Greene (S. Purshii Porter) in our area is not supported 

 by specimens. It may be in the Catskills. 5. tortifolia Ell. has been recorded as a waif. 



11. Euthamia Nuft 



Leaves distinctly 3-5-nerved; ray-flowers 12-20. 



Involucre 4-5 mm. high; its bracts yellowish. I. E. graminifolia. 



