484 CLETHRACEAE 



the region just east of them, there wanting; occasional on the 

 L. I. coastal plain. 



2. Cynoxylon Raf. 



1. C. floridum (L.) Raf. (Comus florida L.). In woods: Me. 

 and Ont. to Fla., Ky., Mo. and Tex. 



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

 wanting. 



3. Chamaepericlymenum Graebn. 



1. C. canadense (L.) Asch. & Graebn. (Comus canadensis L.). 

 In low woods: Newf. to Alask., N. J., Ind. Minn., Colo, and 

 Cal. 

 Conn. Very rare in the southern part of the state, increasing 



northwestward. 

 N. Y. Known on L. I. only from an old specimen collected at 



Dutch Kills, in Queens; unknown elsewhere except in Dutchess, 



Columbia, Ulster, Delaware and Greene counties. 

 N. J. Very rare in and not recently collected from Hudson and 



Mercer counties, unknown elsewhere except in northern Sussex 



Co. 

 Pa. Pike, Monroe, Carbon, Luzerne and Schuylkill counties. 



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

 ward. n8-i58days. Sea level-4,050 ft. 



4. Nyssa L. 

 1. N. sylvatica Marsh. In rich moist soil: Me. and Ont. to Fla., 

 Mich, and Tex. 



Throughout the range, more common southward than in the 

 mountains northward. 

 The reported occurrence of Nyssa biflora Walt, in N. J. has not been verified. 



GAMOPETALAE 



CLETHRACEAE 



Clethra L. 



1. C. alnifolia L. In wet soil: Ont. to northern N. J. and Fla., 

 mostly near the coast. 



Common throughout the range. 



PYROLACEAE 



Flowers racemose; leaves basal. 1. Pvrola. 

 Flowers solitary or corymbose; leaves opposite or whorled. 



Stem leafy at the base; flower solitary; style long. 2. Moneses. 



Stem horizontal; branches erect, leafy; style very short. 3. Chimaphila. 



