BOTANICAL GAZETTE. 205 
ture and depauperate specimen from Terra del Fuego, named by 
Dr. Boott, but it affords little aid in the determination of the 
species. Its perigynium is almost identical with that of C. nudata. 
There are no mature South American specimens of C. decidua in 
Herb. Gray, although a specimen from ‘“Extra-tropical South 
specie 
C. nudata, W. Boott, Bot. Cal I, 241, is distinguished from 
C. vulgaris by its fibrillose sheaths and deciduous perigynia, and 
from both that species and C. decidua by its long, thin, finely 
punctate and lightly nerved perigynium, which is empty in t 
"Upper half. Its spikes are much more slender than in C. decidua, 
and with the present material it appears distinct enough from 
that ambiguous species. 
Greenland species, occurs in Colorado. It is 607 Hall and Har- 
bour, the ©, paucifiora of Porter and Coulter’s Flora of Colo- 
tate 
of the spike. These characters are strongly marked in specimens 
peich I have from Terra del Fuego, but they do not appear in 
Hall and Harbour’s specimens. Olney, in his notes which ac- 
fuPanied the fourth fasciculus of his Exsiccate, Beenie re- 
atte Hall and Harbour’s specimens to C. microglochin. The 
arg is very much like C. paueiflora, and likely to be con- 
is quae’ with it,although the principal distinguishing character 
onensive and infallible. The orifice of the mature perigynium 
of C- paucifiora is tightly closed by the stif'and persistent style;, that 
% ©. mieroglochin by a stif’ racheola which springs from the in- 
