82 ZANNICHELLIACEAE 



7. P. epihydrus Raf. (P. Nuttallii Cham. & Schlecht.). Newf. 



to Br. Col., south to N. Car. and Iowa. 



Conn. Throughout, increasing southward. 



N. Y. Throughout, increasing southward. 



N. J. Throughout, increasing southward, but decreasing within 



the pine-barrens. 

 Pa. Luzerne, Monroe, Northampton, Lehigh and Chester counties, 



apparently increasing westward. 



8. P. amplifolius Tuckerm. N. B. to B. Col., south to Ga. and 



Neb. 

 Conn. Litchfield Co. 



N. Y. Clove Lake, S. I., increasing up the Hudson Valley. 

 N. J. Gloucester and Camden counties, increasing northward; 



not recorded from the pine-barrens. 

 Pa. Lehigh, Northampton and Bucks counties. 



9. P. angustifolius Berch. & Presl (including P. lucens connecti- 



cutensis Robbins). Me. to Cal., south to Fla., Mex. and 



Guatemala. Also in Europe. 



Conn. Fairfield and New Haven counties. 



N. Y. Westchester, Rockland and Orange counties. 



N. J. Sussex and Warren counties. 



10. P. heterophyllus Schreb. Throughout North America, except 



Central America and the West Indies. In the larger Baha- 

 mas; also in Europe. 



Conn. Throughout, in some of its numerous forms. 

 N. Y. Common throughout, except on L. I. and S. I. 

 N. J. Common in the north, decreasing southward; not definitely 

 known south of Bergen Co. 



11. P. alpinus Balbis. Lab. to the Yukon, south to Fla. and Cal. 



Conn. Reported from Plainville, Hartford Co. 

 N. J. Reported from Belvidere, Warren Co. 



12. P. americanus Cham. & Schlecht. (P. lonchites Tuckerm.). 



Vt. to Wash., south to Va., Southern Cal., Tex. and Mex. 



Also in Cuba, Haiti, and Jamaica. 



Conn. Local in the Saugatuck, Connecticut and Housatonic 



rivers, increasing near the coast. 

 N. Y. The Hudson Valley. 



N. J. Warren and Sussex to Gloucester and Salem counties. 

 Pa. Northampton to Delaware counties. 



