VOLUME XXV 
NUMBER 5 
SEPTEMBER, 1922 
my 
1 BRYOL0GI8T 
JOURNAL OF THE 
SULLIVANT MOSS SOCIETY 
Conducted and Published for the Society by 
O. E. JENNINGS, PH.D., Editor-in-CKief 
Associate Editors 
GEORGE N. BEST, M.D. 
ALEXANDER W. EVANS, Ph.D. 
and the 
Advisory Board Officers 
ABEL jp«L Q^^QW*. Ph<p^, , 
J0H>O<I,^%bLZINGER, M.S. '^/.^ 
^^^^jOv n 1922 t^l 
CONTENT S^',„,,| ^u.e^i^ 
Recent Studies on Certain Species of Riccia Alexander W . Evans 81 
The Mosse ; of the Oxford University Expedition to 
Spitzbergen, 1921 H.N.Dixon 86 
On Some Mosses from the Blue Mountain of Cuba 
Elizabeth G. Britton 89 
Leptobryum Escomeli Ther. Sp. Nov. /. Theriot 90 
Note on a Form of Pottia Heimii from Greenland 
H, N. Dixon 92 
Notes 93 
Notes on Current Botanical Literature 94 
Duplicate Specimens for Exchange 96 
"Entered as second-class matter August 21st, 1913, at the Post Office at Pittsburgh, Pennsylv 
under the Act of March 3, 1879." "Acceptance for mailng at special rate of postage 
provided for in section 1103, Act of October 3, 1917, authorized August 8 1918 " 
Copyright, 1922, by Edward B. Chamberlain 
The JULY NUMBER OF THE BRYOLOGIST was published JULY 20, 1922 
PRESS OF THE I NTELLIGENCER PRI NTI NG HOUSE. LANCASTER. PA. 
