
          Wislizenus' Collection from the Rio
Grande below Sante Fe, and I suppose
[?] singular plant with [?]
fruit must be the same, but I doubt
with you that that is a normal state.

I continue to study Cactaceae
structurally, morphologically and
systematically, but the opportunities
are comparatively small here.
Besides that, you will be astonished
to learn it, I have fallen upon
the [?] and [?] and
exceedingly regret the impossibility
to communicate with our
friend Curtis, who could enlighten
me on many points.

You know that the Sagittaria calycina
has also been found in Maine in
Delaware, and now in northern Illinois.
So it is probably diffused all over
the country, but has been overlooked.

Dr Newberry who was here a few
weeks ago, informs me that you have
the Smithsoniam Collections in your
hands, and [inserted: he] promised to see that L
should get a set of the [Spc.?] of Pinus
especially the cones.

Ever truly yours

G. Engelmann 
        