4J8 AMMIACEAE 



9. Zizia Koch. 



Basal leaves 2-3-ternately compound. 1. Z- aurea. 



Basal leaves cordate, undivided. 2. Z. cordata. 



i. Z. aurea (L.) Koch. In fields and swamps: N. B. to Ont., 

 S. Dak., Fla. and Tex. 

 Conn. Common throughout the state. 

 N. Y. Very rare on L. I. except in and near the Hempstead Plains; 



on S. I., thence increasing northward. 

 N. J. Farmingdale, Monmouth Co., and Cold Spring, Cape May 



Co., and north of the coastal plain. 

 Pa. Monroe, Northampton, Bucks and Chester counties. 



Tertiary, a single station, not on Beacon Hill:* Cretaceous, rare: 

 Older Formations, increasing northward. 117-220 days. Sea 

 level-3,365 ft. 



2. Z. cordata (Walt.) DC. In woods: R. I. to Minn., the N. W. 



Terr., Ga., Mo., Wyo. and Ore. 



Conn. The coastal region, except in Fairfield Co., there scattered. 



N. Y. On L. I. and S. I., decreasing northward to Columbia 

 and Ulster counties. 



N. J. A single station in Gloucester Co., near the Delaware, 

 thence unknown to Middlesex Co., thence increasing northward; 

 not in the pine-barrens. 



Pa. Monroe, Northampton, Bucks, Delaware and Chester coun- 

 ties. 

 Tertiary, o: Cretaceous, very rare in the region of the glacial 



terraces along the Delaware: Older Formations, not very common 



and apparently increasing northward. 153-220 days. Sea level- 



1 ,200 ft. 



10. Cicuta L. 



Leaf-segments lanceolate. I. C.maculata. 



Leaf-segments narrowly linear. 2. C. bulbifera. 



i. C. maculata L. In swamps: N. B. to Man., Fla. and N. Mex. 

 Common throughout the range except in the pine-barrens, there 

 wanting. 



2. C. bulbifera L. In swamps: N. S. to Del., Man., Ind. and Neb. 

 Conn. Throughout the state. 



N. Y. On L. I. and S. I. and in the Bronx, increasing and becom- 

 ing common northward. 

 N. J. Rare in Camden and Gloucester counties, near the Delaware, 

 * See Introduction paragraph 36. 



