Caricography. 271 
a large collection of grasses. They were put into his hands by that 
distinguished botanist, Hooker, for examination ; and had been col- 
lected in the voyages and tours of discovery in Arctic America. 
Dr. Torrey was so good as to put into my hands the specimens of 
the Carices, amounting to collections from about one hundred and 
ninety different places in those regions, and embracing with several 
new and rare ones, most of the new species already described, and 
several of those long known in the United States. The plants are 
very interesting, as exhibiting the vegetation of those Northern re- 
gions. Few of them are diminutive in size, but the species common 
in this part of the country attam about the same size in that, and 
come to maturity at the same time. ‘Thus we find specimens in a 
mature state in June on the shores of the Arctic ocean, and in 
May at Fort Vancouver. Some of these Carices have already been 
described in the last two articles on Caricography, and the rest will 
be given ina future number. At present, I propose to give a cata- 
logue of all those received, with their localities, and such brief re- 
marks as seem necessary. In the first place, however, I make my 
acknowledgments to Dr. Torrey for his liberality. May success 
still attend his efforts in the cause of Natural Science. 
Last of Carices, collected in the Northern parts of America. 
C. dioica, .—Rocky Monntains, Norway House, Cumberland 
House, and sea coast of Arctic Regions. Many and fine specimens. 
*C. Davalliana, Smith. Rocky Mts. Several specimens, fine, 
large, and so far removed from the preceding as to justify Smith in 
making it a new species; not before found in America. 
C. scirpoidea, Mx. In many parts of the Rocky Mts. I feel 
unwilling to take this species from Mx., and call it after that Danish 
name, C. Wormskioldiana of Horneman. The specimens are many, 
fine, beautiful ; dioecious or androgynous with stamens only at the 
summit of the spikes ; leaves deep green, broad, flat, grassy. 
*C. capitata, L. Rocky Mts. and Hudson’s Bay. Large and 
fine specimens. ‘This species and the following, not before credited 
to our country, but very common in the north of Europe. 
*C. incurva, Lightfoot. Rocky Mts. This is a small, distinct, 
and handsome species. 
C. sterilis, Willd. Carlton House and Rocky Mts. 
C. bromoides, Schk. Rocky Mts., Cumberland House, and Carl- 
ton House. ; 
* Those marked with a* not before credited to America. 
ne 
