Jan. 17, 1911 
My dear,Mrs. Dunham:- 
I am very greatly obliged for the 
Yon seem to have the right idea of Polytrlchum 
mosses. 
pertgonialc if my idea of it is correct, I am always glad 
to get selectmens of any (even very common) mosses from 
any where in New England especially. Mr. Chamberlain 
sent me the synonymy of the P. gracile var. anomnium , with 
the exception of one point, which you supply. Many thanks. 
I inclose a specimen which may he of more than usual interest 
Very truly yours, 
