202 THE CORRESPONDENCE OF SCHWEINITZ AND TORREY 
b 
11. Cyp. “flavicomus.’ 
C. strigosus. 
. Carex hystericina! This surprised me—I should certainly 
have called it [C.] Pseudocyperus. C. hystericina, as I have’ 
determined it, is a very different plant. 
13. C. costata. I can hardly distinguish it from C. virescens. Do 
you find its chara‘. constant? 
14. C. muskingumensis. Very near C. lagopodioides— 
15. C. cristata. I am glad that thing is settled. ’Tis common in 
N. Eng*. & I never k[new what] to do with it. 
16. C. straminea. This speci®. has but 2 spikes. Is that common? 
The other species I believe we have settled before. 
The Carex we call xanthophysa is most certainly C. folliculata 
as fig*. by Rudge in Lin. Trans. [65] & as Smith says of Herb. Lin. 
as he compared the specimen I sent him. So that C. follic. of 
Schk. & Muhl. may be disc’. The one you labelled C. striata I 
cannot make different. The one resembling it, with distant 
spikes which I supposed to be a var. of subulata, though much 
larger, was among Muhlenberg’s specs. as a var. of folliculata! 
I am so perplexed with these things, that I am almost in despair 
of ever being able to distinguish the species with certainty. 
If you have specimens of the following plants or can give me 
descriptions of them for my Flora, I should never forget the favour 
—Hydrangia vulgaris Ph. Mitella reniformis. Silene nocturna. 
Sedum telephioides. Cerastium semidecandrum Muhl. hirsutum 
Muhl. villosum Muhl. Euphorbia repens. Euphorb. lutescens. Prunus 
pumila, nigra, pygmaea. Crataegus elliptica Ph. Any plant which 
Pursh, Muhlenberg, etc. have not given as natives of the Northern 
States, would be highly acceptable, or indeed any new observa- 
tions on old ones or habitats of uncommon species, etc. Do my 
dear Sir assist me to these, if you do not intend to use them in 
any publication of your own. Send me if you please, as soon as 
your health permits, a list of varieties in the classes between 
Decand. & Polyand. (including the former). 
I have just received from Monticello, Georgia, a package of 
Cryptogamous plants among which are some quite new to me. 
Those specimens which will bear dividing I shall certainly share 
with yeu. The latter part of this week I will put a package into 
This is what I have supposed to be 
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