Caricography. | 305 
Culm 4—12 inches high, obtusely triquetrous, rather hex- 
angular, striate, growing black below, scabrous above ; leaves 
linear, upper ones long as the culm; shorter below, rou ough on 
the edge ; staminate spikelets ovate-oblong, rather acute, 
about five, approximate, sessile, with an ovate scale ‘acute ; 
pistillate spikelets more distinctly ovate, situated like the sta- 
“Sagat ; androgynous spikelets, like the pistillate, staminate 
ometinres above and sometimes below ; ; fruit ovate, cordate- 
ovate {Muh.), acuminated into a short beak, bifid, subcom= 
pressed, scabrous on the margin above, reflexed at the. apex 
and diverging, with an ovate scale somewhat acute, white on 
the margin, and about the length of the; 
Flowers im May in the marshes of Penn=Muhy: a 
mon over the country, in wet situations. In the dioeciou 
form, this species is easily distinguished from C. stellulata 
and °C. scirpoides—but commonly they are probably con- 
founded, as they greatly resemble each other. 
C. affinis. R. Brown. 
tristigmaticis ; squamis lanceolatis acutis, in- 
fima “atatade § ; foliis planis. . 
Culm six inches high, triquetrous, subscabrous, leafy to-. 
wards the base; leaves narrow, linear, flat, shorter than the 
culm, filiform at the apex; spike single, staminate a 
loose-fiowered ; fruit about five, with a tawny scale; 
three. Moi. 
Found in Arctic America, by Dr. Richardson. See : 
Frank. Nar. ed. 2. This plant appears to be exceedingly 
like C. polytrichoides ; if the fruit do not difler, it can searce- 
ly be considered more than a variety. 
pp- 
ill. C. attenuata. R. ment 
ste 
. and Torrey no 
na superne ane densa ; fructi- 
ob- 
os ar - ibus 
= reiatiacuianiese paucioribus obternis ; squamis omni 
sis. 
= und in Arctic America, by Dr. Richardson. See App: 
rank. Nar. ed. 2. 
1 oa 
