198 



The change appears to be warranted. 



AsPLENiuM ABSCissuM Willd. Sp. PI. 5 : 321. 18 10 



Asplenmni finnum Kunze (1845) appears to be identical with 

 this widely distributed tropical species and hence falls under it in 

 synonymy, 



AsPLENiUM CRISTATUM Lam. Encyc. Bot. 2: 310. 1786 

 Aspleniiun ciciitarium Sw. (1788), proving an exact synonym, 

 must yield to the earlier name. The occurrence of this common 

 tropical American fern in Florida rests on a single meager collec- 

 tion. Further information of its occurrence within the limits of the 

 United States is greatly to be desired. 



Mr. Christensen has made a few other changes, particularly in 

 Ahtholaena2L.x\d Pellaea, which we are not prepared to adopt, pending 

 a revision of the species of these groups. Among these is the 

 transfer of Notliolacna deal data and A"^. tcnej'a to Ptilaca. Pellaea 

 dcnsa, which Diels transferred to Cryptogravima in 1899, Chris- 

 tensen restores to Pellaea. 

 Columbia University, 

 September 30, 1907. 



A LONG ISLAND CEDAR-SWAMP 



By Roland M. Harper 



No cedar swamp on Long Island (or any other island, for that 

 matter) seems to have ever been described in botanical literature, 

 though evidences of the occurrence of such places on the island 

 are not wanting. Such swamps, at least in the coastal plain and 

 southeastern part of the glaciated region of North America, are 

 characterized by the white cedar, or "juniper," Chamaecyparis 

 (formerly Cupvessus) thyoides ; and Dr. Torrey says of this 

 species in his Flora of New York, published in 1843 : " Long 

 Island, where, in several places (as near Rockaway, Hempstead, 

 Babylon and Islip) it occurs in considerable quantities," The 

 localities mentioned are all in the coastal plain,* but I do not 

 know that any of them have been verified in late years. 



*Some maps of Long Island (such as can be seen in almost any railroad station 

 on the island) show a settlement named " Cedar Swamp " about three and one half 



