18 West 89th Street 
New York Oity 
June 185>h 1922, 
Dear Collins 
Sometime when you have a moment I wish 
you would compare the externals of the enclosed ma¬ 
terial with 
Wilson:- British Mosses $93, Pottia Heimii. 
I know that you have seme of that series. The plant 
is one about which there will soon be an article in 
the Bryologiat. Dixon asked my opinion on it and I 
happened to compare with the Wilson #95 at the N.Y. 
Garden, finding that the capsules SAS were not dis¬ 
similar in shape and size, Dixon states that 
those in his own material of Wilson #95 are very dif¬ 
ferent, but that Wilson frequently included material 
from more than one collection in a single number. 
The question is more on of curiosity on 
my part than anything else 
Actu/ally, the plant will 
not ha , e a distinctive name in the forthcoming article 
though it verges pretty much towards the thing that 
Philibert called Pottia Ryani which others consider 
P. Heimii var obtusifolia. 
All about as usual here. I hope to leave 
town the 29th for Vermont, where I shall try a little 
tramping and camping by my lonesome in the region just 
south of Camel8 Hump, then go to Berkshire to visit 
the Jolleys for a day or two and finally attend the 
Vt. Bot. Soc meeting at Montgomery . Plans for the 
next week undecided, and I may go directly to 
Maine, where I shall certainly be by the 24th July. 
Cordial regards to you all. 
Chamberlain 
