Fi & 
22 El. Hitchcock, Jr., on a new species of Clathropteris. 
hac. Il.—Description of a new species of Clathropteris, ciate oN 
ered in the Connecticut Valley Sandstone; by E. Hir 
cock, Jr., M. 
Tue position of the sandstone of the Connecticut valley is of 
that with the exception of the footmarks, very few well charac 
terised fossils have been discovered in this formation. 
uring the last summer a specimen of a fossil fern was foun 
in the sandstone of Mt. Tom, in Easthampton, Mass., which seem: 
none so well defined as to indicate the genus to which they n 
undoubtedly seem to belong. . 
The generic description ef this plant is thus given by Bron 
niart: “ Folia pinnatifida, pinnulis elongatis, nervo medio val 
nervulis tenuoribus reticulatis notatas,” who considers the qu 
rangular abeces formed by the veins and veinlets as the eo 
characteris 
Only ae iasie is as yet described, “ meniscioides,” named © 
from the resemblance of the spaces between the veins, | to- 
meniscus. 
tis, inter se discretis, Sse inedalibus vel majoribus ; 
secundartis rachi subpersenditcntee ie A lineis distantibus ; 
vis transversalibus rectiusculis vel leviter arcuatis Sect: 
vulis tenuissime reticulatis, superficie foliorum planiuscu 
logical position of the European Species.—In 1828, Adol 
Brongniart regarded this fern as very characteristic of the 
sandstone, which (fern) had been discovered in these loca 
and he thus speaks concerning it: “This fossil fern, so re 
able in its structure, and by its well marked relations toa s 
group of living ferns, is not less so in a geological point of view. 
In reality since I have found it at Hoer in the arkose formation, 
all the fossil plants of which compel me to refer it to a positi¢ 
between the lias and the chalk, this same plant has been fot 
in two other localities where the geological position is well 
termined ; at Mt. St. Etienne near La Marche in osges, In 
