18 
Asplenium Bradleyi, Eaton. 
For some time I have been interested in the relationship of 
Asplenium Bradleyi, and the note by Mr. Middleton in a recent 
number of the BuLLETIN has given me fresh zest in the matter. 
During the summer of 1890 this rare fern was discovered by 
Mr. J. K. Small, on Eozoic rocks near the junction of the Tucquan 
Creek with the Susquehanna river, about eighteen miles from Lan- 
caster. Last February we visited that place, and within a quarter 
of a mile of the original station found two more locations for it. 
On October 15, Miss E. Gertrude Halbach and myself discovered 
another station at McCall’s Ferry, two miles further down the 
river. 
As to its relationship with A. vzride, | do not see how it can 
possibly be referred to that species, of which I have at hand three 
specimens, one from Owen Sound, Ontario, Canada, and two from 
Smuggler’s Notch, Vermont. In these specimens the pinnae are 
more or less rounded, and the fruit dots crowded on the lower side 
toward the rachis. The pinnae, furthermore, are only two or three 
lines long and almost as broad, while the stipes are green, except 
near the base. 
The pinnae of A. Bradleyi are very rarely inclined to be rounded, 
even in the smallest specimens that I have seen, one from North- 
west Arkansas, collected by F. L. Harvey, one from Estill county, 
Kentucky, collected by John Williamson, but are considerably 
longer than broad, some of them oblong-lanceolate, and others 
hastate, and almost an inch long on large specimens. As indicated 
in the last edition of Gray’s Manual the pinnae are more or less 
auricled, a feature which is not possessed by A. viride, as far as I 
have been able to learn. 
The sori are pretty evenly distributed toward the centre of 
the pinnae, and extend almost to the apex. The stipe, in the 
what we may call typical specimens, is usually brown until within 
a short distance of theapex. In others the brown extends half way 
or even somewhat less, but there is always considerably more of 
it than in A. viride. 
Its relationship, as shown by specimens from this county, sug- 
gests a connection which I have never yet heard of from any 
quarter, but which I think is worth investigating. It seems to 
