FEerRNs OF BALTIMORE 19 
terested in ferns for five or six years, sent me a lot of 
living plants of Woodsia obtusa for W. ilvensis. Just a 
look at the stems would have prevented this mistake, 
for even the manuals mention the obscure joint near the 
base of the stipe of the latter species. 
Things did not always run smoothly, and there were 
critical moments when some of us hardly knew “where 
to get off.” The detailed account of these moments 
should remain in the unwritten history of the Society, 
because peace was made after each period of hostilities, 
and probably the majority of the members did not 
know there had been any altercations. Indeed, there 
are but few members left from the early days. The list 
of May, 1920, shows just eight who joined in 1895 or 
before, and only 36 more who came in between that 
year and the end of 1902. This total of 44 is not a 
large proportion of the “flourishing society of one hun- 
dred or more members” which Mr. Winslow discovered 
in that year. It is a much smaller proportion of the 
264 in the latest list. 
WasuinotTon, D. C. 
The Ferns of Baltimore and Vicinity. 
Cc. E. WATERS 
In this Journau for April-July, 1919, is an account 
of the ferns of the District of Columbia, by W. R. 
Maxon. By putting in the proper place names and 
making some few other changes, his account would do 
very well for the Baltimore region. The geological 
features are much the same and the difference In lati- 
tude, as well as in altitude, is so slight that there are 
few species on either list which are not on the other. 
It will not be necessary, therefore, to repeat all the 
names but only to point out the differences or to com- 
ment on particular species. 
