1888. | BOTANICAL GAZETTE. 241 
through the botanical magazines. The committee published, first in the 
GAZETTE, and in the Bulletin for February of this year, a preliminary out- 
line for the organization of the Exchange, based on the rules of the Bo- 
tanical Exchange Club of the British Isles, and asked for suggestions and 
improvements for a permanent constitution. A few months later the 
committee published a note announcing the location of the head-quarters 
of the Exchange at the National Herbarium, in the Department of Ag- 
riculture at Washin gton, and soon after the final report of the committee 
came out in the June number of the botanical magazines in the form of 
the governing rules of the Exchange. 
As at present constituted, then, the Botanical Exchange Club consists 
of a number of persons organized for the purpose of exchanging botanical 
specimens, and governed by certain rules. The correspondence, finances 
and general management of the Exchange are in the hands of a director. 
A considerable number have already become members, and packages of : 
specimens are beginning to come in. With the increased membership ee . 
and contributions that the Exchange will have by the end of this season's 
botanizing, the director can soon put the exchanging into full active 
Operation. 
Printed copies of the rules will be distributed, and an opportunity 
Will be given to any of the botanists present to become members of the : 
Exchange. The annual fee of two dollars has been set for the purpose 3 
of paying the expenses of printing, transportation of specimens and 
Correspondence, OPEN, 
All packages and correspondence should be addressed to Dr. George 
Vasey, Director of the Botanical Exchange Club, Department of Agr bene 
ure, Washington, D. O. é . 
t of new mosses of N. Am.—The descriptions aod drawings of ~ 
the following mosses, by F. Renauld and J. Cardot, will be issued shortly 
the Boranicat Gazerre: ‘ 
Microbryum Flerkeanwm Sch. var. Henrici.—Kansas (Henry,. 
Weisia viridula Brid. var. nitida.—Louisiana Sees coe 
Dicranum hyperboreum C. Miill. var. papillosum.—Greeniane, 
icranum wiidenaes (D. spurium var. condensatum Lesq. et James, 
yscomitriu 
‘ New J ersey (Green). 
Tyum Sawyeri.—Florida (Sawyer). - retica), Oregon 
Fontinalis Oregonensis (sub-species of F. antipyretica). Se 
(Howell) ee 
