4 AMERICAN FERN JOURNAL 
distribution of French ferns. Eight species reach alti- 
tudes above 2500 meters. These are Woodsia alpina, 
Cystopteris fragilis, C. montana, Dryopteris Filiz-mas, D. 
spinulosa, Polystichum Lonchitis, Asplenium viride and 
Cryptogramma crispa. It is interesting to note that all 
of these occur in North America, with the exception of 
the last, which is represented here by the closely re- 
lated Cryptogramma acrostichoides. Five species, Tri- 
chomanes radicans, Hymenophyllum tunbridgense, H. 
peliatum, Asplenium marinum and Pteris cretica are 
found only below 500 meters, and of these none occurs 
certainly in North America, though a Trichomanes of 
the southeastern United States has been referred to i 
radicans. Note 5 deals with the inrolling of growing 
fronds in certain plants of the hart’s-tongue, a phe- 
nomenon which M. Gadeau de Kerville believes to be 
due to some abnormality in the structure of the plant 
which prevented a sufficient supply of water from 
reaching the leaf-tissue. 
CA: Wi 
AMERICAN FERN SOCIETY 
ANNUAL REPORTS OF THE SOCIETY 
Report of the President for 1917 
In accepting this office it seemed to me that besides 
exercising such general knowledge of the Society § 
affairs as seemed possible, I should be present at } 
yearly meetings. Accordingly I made it a point i 
be present at the meeting in Brooklyn on the evening 
of December 29 and to exhibit and talk on some speci- 
mens from my collection. The meeting was thoroughly 
enjoyed by all present and I am sure that no one Te 
gretted their attendance and that all were well pleased 
by the hospitality of the Brooklyn Botanical Ga 
and its accomplished representative, Dr. Benedict- 
very interesting and with us a popular exhibit was 
