HALORAGIDACEAE 469 



10. Circaea [Tourn.] L. 



Fruit 2-celIed; leaves mainly of an ovate type. I. C. luteliana. 



Fruit i-celled; leaves mainly of a cordate type. 2. C. alpina. 



i. C. lutetiana L. In woods: N. S. to western Ont., S. Dak., Ga., 

 Neb. and Kan. Also in Europe and Asia. 



Throughout the range, except in the pine-barrens, and east and 

 south of them, there apparently wanting, always increasing north- 

 ward. 



2. C. alpina L. In cold moist woods: Lab. to Alask., Ga., Ind., 

 Mich, and S. Dak. Also in Europe and Asia. 

 Conn. Rare along the coast, increasing northwestward. 

 N. Y. Westchester, Dutchess, Columbia and Ulster counties, 



increasing northward. 

 N. J. Warren and Sussex counties. 

 Pa. Pike, Carbon, Monroe, Lackawanna, and Northampton 



counties. 



Tertiary, o: Cretaceous, 0: Older Formations, increasing north- 

 ward. South of the moraine only in Pa. 11 7-1 89 days. Sea 

 level-3,365 ft. 



Circaea intermedia Ehrh., a plant with the aspect of large C. alpina, has been 

 found in Montague Township, Sussex Co., N. J. 



H ALORAGI DACEAE* 



Fruit 3 angled or 4 angled. 1. Proserpinaca. 



Fruit of 4 carpels. 2. Myriophyllum. 



i. Proserpinaca L. 



Emersed leaves linear-lanceolate to oblong, serrate; fruit sharp 



angled. 1. p. palustris. 



Leaves all pectinate-pinnatifid; fruit obtusely angled. 2. P. pectinata. 



i. P. palustris L. In swamps: N. B. to Lake Huron, Fla., Iowa, 

 and Cent. Am. Also in Cuba. 



Rather scattered over most of our area except in the pine-barrens, 

 there apparently wanting. 



2. P. pectinata Lam. In sandy swamps near the coast: Me. to 

 Fla. and La. 



N. Y. Lake Ronkonkoma and Manorville, L. I.; formerly on S. I. 

 N. J. Monmouth Co. southward. 



A plant intermediate in character between these two species has been described as 

 P. intermedia Mackenzie (Torreya 10: 249. 1910). It has been found only in N. J., 

 near Island Heights, Atsion and near Bennett, Cape May Co. 



* See footnote, page 76. 



