CICHORIACEAE 64I 



Involucral bracts in I row. 12. Crepis. 



Involucral bracts in more than I row. 



Involucre imbricated; flowers yellow or orange. 13. Hieracium. 



Involucre calyculate; flowers white, cream color 



or pinkish. 14. Nabalus. 



I. Cichorium [Tourn.] L. 

 [. C. Intybus L. Roadsides, fields and waste places: N. S. to 

 Minn., N. Car., Neb. and Kan. Native of Europe. 



Common in some of its numerous forms throughout the range. 

 A form with divaricate heads, divarication, is often to be found 

 with the type. 

 The endive, Cichorium Endivia L., sometimes escapes from gardens. 



2. Lapsana L. 

 [. L. communis L. Along roadsides and in waste places: Que. 

 and Ont. to N. J. and Pa. Also on the Pacific Coast. 

 Native of Europe. 

 Rare as a weed. 



3. Cynthia D. Don. 

 i. C. virginica (L.) D. Don. In moist woods and meadows: 

 Mass. to southern Ont. and Man., Ga., Ky., Mo. and Kan. 

 Throughout the range except in the pine-barrens and along the 

 coast near them, there rare and obviously introduced. 



4. Krigia Schreb. 

 [ . K. virginica (L.) Willd. In dry sandy soil : Me. to Ont., Minn., 



Fla. and Tex. 



Conn. Common along the coast, decreasing and perhaps wanting 

 northward. 



N. Y. Common on L. I. and S. I. and up the Hudson Valley to 

 the southern end of the Highlands, not certainly known north- 

 ward. 



N. J. Common throughout the coastal plain, decreasing and be- 

 coming local northward. 



Pa. Monroe, Northampton, Lehigh, Bucks, Delaware, Schuylkill, 

 Philadelphia and Chester counties. 



Tertiary, common: Cretaceous, common: Older Formations, de- 

 creasing and becoming scattered northward. 123-220 days. Sea 



level-1,890 ft. 



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