208 THe CORRESPONDENCE OF SCHWEINITZ AND TORREY 
confess I begin to doubt a little about my Carex costata altho it is 
very constant—if a mere variety. I hardly think you would 
conceive the Muskingumensis so very near lagopod.if you had seen 
it grow. 16. The greater part of my straminea had 3 spikes. 
Among the plants you desire specially I am sorry to say that 
Hydrangea ett MSO here) is the only one which I can 
furnish. Of Sed phioides—common on the mount. of Carol.— 
I have but one rae is very near [S.]. Teleph{ium]. Cerastium 
hirsutum Muhl. I think is certainly only C. vulgat. If possible I 
will [add] to this letter a list of our rarer plants here—so that you 
can point out such as you would choose. It would be extremely 
acceptable to me to get some of the interesting Georgia Crypto- 
gamists you allude to. 
As regards the queries in your last I am conscious of not being 
able to give you much satisfaction—as they chiefly regard matters 
that I have only superficially attended to— 
The Arenaria canadensis—I have only seen in one specimen 
from you. The caulescent Oxalis—puzzle me as much as you— 
besides the stricta & corniculata—the one with large broad, 
the other with small leaves & certainly very similar—I however 
have found one other frequently in Carol[ina] (not here) which I 
think very different (among the rest the folia are invariably tinged 
velvet purple) but I have not been able to reduce it to any of 
Elliott’s—The Cerast. longepedunculat. of Muhl.—by specimens 
from himself is most undoubtedly the glutinosum of Nuttall—con- 
cerning the fenwifol. of Pursh I have little doubt that it is the same 
with European—& American arvense the latter perfectly the same 
with arvense E.—covers certain rocks on Delaware near Easton. 
I have doubts myself whether the Lythr[um] verticillat—& L. 
hyssopifollium] are congeners (confessing however that I have rarely 
studied the generic differences of my plant)—but I think it cer- 
tainly is of the Lythrum Salicaria of Europe. Among my Plants 
of the Pine barrens N.C. I have one I call Euph. portulacotd.— 
but I am not competent to say it is the Muhlenbergian—mine is a 
distinct plant. 
The Talinum teretifol|jium|—very common on rocks in Carol. 
—is so distinct a plant that I never once recurred to the generic 
examination.—As to the genus Prunus & [the genus] Cra- 
