
          has been collected Valley of the Nazas 15 April mixed with
others. I named it E. stipulacea, as the stipules are so
conspicuous; seeds smooth. A very similar one is E. Greggii
also on the Nazas, 15 April, with foveolate rugose seeds, and mixed
with both was our common E. hernianoides! A very pretty canescent
species is from Monterey, coll. [collected] in February, which you probably have
not got, and another was mixed with some other plants collected
at [Conalbi?] 29 May, some what near E. maculata (your depressa,
it is certain, that that is Linne's maculata?) but with triangular
leaves, and perennial; seeds also somewhat different. The umbellate Euphorbia
sent by Gregg from different places is perhaps not different from E. [arkansana?]
Plant. Lindh. [Plantae Lindheimerianae]. Another almost leafless [?] species sent from
many places has also been obtained by Wislizenus. It is near Cyathophora,
but distinct, with tuberous roots etc., I believe undescribed.

My best thanks for the trouble you have taken in copying
Zuccarini's Cowania purpurea. I can not doubt that it is the
plant in question, of which you must also have specimens; but
I have examined it again, and repeat that the calyx is very distinctly
and considerably imbricate. I find that Zuccarini has described
many plants from northern Mexico, where has he obtained them
and where are they described. Besides the [Koelaelinea?] this Cowania,
the Dasylirion, there may be others of Gregg's & Wisl' [Wislizenus's] plants
described by him.

I should like to see a flower of your G. [Geranium] fremontii, it may yet
be different from my G. pentagynum, at least Fendler has sent a
plant, named by Gray G. pentagynum, but which I find very different.
G. pentagynum [erectium?], [inserted [?][?]] pedicellis [deflo?] [erectis?] [glandulosa?] [pubescentibus?], 
filamentis stylos [?] parte [solam?] [connator?] [?] [?] glanduloso pubescent.
G. (Fendler's) [?], [partially crossed out & [?] added] elongatis, pedicellis [deflontis?] [?] [retrorso?]
[?], filamentis [?] at stylos [?] parte [?] [connatos] [?],
[?] [?].

My idea certainly was to write a joint article on western
pines; I could not do it alone, as I have no knowledge of
the eastern pines, nor of all that has been done by others, to
attempt it, but I will do what I can to assist you, as do all
the labor, which you think proper to charge me with. I may also
attempt the drawings, but will not promise much before I
have tried.

I have not the least objection to give up the Sapotaceae
for the "Amargosae", but what do you make of it?
There appear to be so many anomalous things in those
[?]! The yellow flowered shrub from San Lorenzo May 11
is also quite unknown to me.

I have written to Col Emory that you intended sending
me his Cactaceae, he thought he had better see them
        