
          Phila March 30, 1870

Dr. John Torrey
N.Y.  My dear friend

Now that I have 
fully completed the selecting & mounting
of the ferns of your last Kew package,
let me thank you a little more fully
& definitely than I could do during 
my recent, brief, & unexpected visit to
N.Y.
An unusually large proportion of the 
species were new to me. I added
32 species to my collection, and of some
that were not new, I was enabled to
more fuly represent the geographical distribution.
The Jamesonia gave me
a new genus and a very curious
one too. Many of the Polypodii were
very curious, especially the dimorphous
species, of which I would recall to you
P. rigidulum, with a sterile found hardly

        