134 THE CORRESPONDENCE OF SCHWEINITZ AND TORREY 
Musci Hepat. 76 Species re- Only two of these are not 
corded or found by me, of in my American collection. 
which some are new. 
The whole number 
of Musci Frondosi in my Collection is 442 species 
of ———— hepatici 98 —---— 
Of both Frondos & Hepatics I have put up for you specimens 
of all of which I had duplicates—that are not mentioned in the 
New York Catalogue or among those you sent me, besides a con- 
siderable number of European ones from my duplicates which are 
always distinguished by being in blue paper. 
I am now on the point of reviewing my Lichens in the same 
manner. I have 562 species in my collection of which no less than 
441 are American ones. When I have finished this work I shall 
have about sufficient to send on another box to you. The way 
which we have begun of thus communicating specimens of Cryptog. 
is the only one I believe which will enable us at length to get a com- 
petent knowledge of the immense numbers of Am. Cryp. plants—& 
I therefore earnestly solicit you to send on in the same manner, 
whatever you think proper to communicate to me. I shall al- 
ways send you back a similar list, with the one here inclosed— 
containing my opinion on all the spec. communicated. 
I think I have mentioned to you my idea of publishing a 
Cryptogamic Flora of N. America. I am now in communication 
with a printer at Raleigh for publishing a specimen of such a work 
[74], which I intend shall contain the Musci hepatici, on account of 
their limited number. My plan is that such a work should be as 
a kind of second part to Pursh [61], & therefore modelled upon his 
plan; & the specimen I intend to give will enable scientific friends 
to judge whether that be a good plan. My only fear is the size of 
the work—for imperfect as my present collections are the whole 
already amounts to a very large number, Fungi 1700, Lichens 
441, Musci, 352, &c. &c., so that it must comprise near 2500 species. 
Besides I should not pretend it to be anything besides a Prodromus, 
for the purpose of calling the attention of Am. Botanists to this 
part of the Science. Our higher mountains, & our southern 
swamps & seaboard must necessarily contain immense numbers of 
Crypt. plants hitherto quite overlooked. I am preparing for an 
Sas IT, Se ST ees, MT ne am RoR ee nen E 
