Q7 4 Curicography. 
glabris bicuspidatis, sqaama ovato-cuspidata vix duplolongiers 
ibus. 
Culm about two feet high, triquetrous and somewhat wing- 
ed above; leaves linear-lanceolate, rough, long or longer 
than the culm, sheathing towards the base ; bracts leafy, long, 
distant, much surpassing the culm, without sheaths; stami- 
nate spikes three, erect, cylindric, upper one longer and pe- 
dunculate, the others sessile and bracteate ; staminate scale 
oblong, obtuse, white and subserrate on the edge, tawny ; 
stigmas three ; pistillate spikcs two or three, cylindric, erect, 
in maturity somewhat nodding, alternate, sessile above, pe- 
dunculate below, rather thick ; fruit oblong-ovate, tapering 
above, rostrate, nerved, glabrous, bicuspidate, inflated, some- 
what spreading ; pistillate scale ovate-cuspidate, tawny, green 
on the keel, more than half as long as the fruit. Colour of 
the plant rather light green. 
Flowers in May and June—grows in marshes, or beside 
slow muddy brooks. Found in Penn., Muh.—Westfield, 
Mr. Davis, to whom I am indebted for most of my specimens. 
Also, in Northampton. 
This species differs from its related species, C. ampullacea, 
in its spikes, and in the form and length of the fruit and scale ; 
the latter having more distinctly ovate fruit and a scale nearly 
equal in length to the fruit; from C. lacustris, and C. riparia, 
in the appearance of its spikes, fruit, and scale ; from C. eva- 
uta, Hartm. particularly in the shape of the fruit. 
75. C. Hitchcockiana. (Mihi.) 
Am. Journ. Vol. X. tab. E fig. 17. 
Spicis distinctis ; spica staminifera solitaria erecta pedun- 
culata ; spicis fructiferis tristigmaticis subternis, erectis ex- 
serte pedunculatis paucifloris persparsifloris, infima remota ; 
 fructibus subtriquetro-ovalibus inflatis utrinque alternatis 
apice recurvis strialis cum rostro brevi truncato et aperto, 
squame oblong vel ovate mucronate subequantibus ; ecul- 
mis, foliis, bracteisque scabro-pubeseentibus. 
Culm 16—24 inches high, erect, triquetrous, scabrous 
above ; leaves scabrous, shorter than the culm, striate, short- 
er below, with striate sheaths; bracts long, leafy, much sur- 
passing the culm, with short sheaths, and often havinga large 
ovate stipule opposite the bract; staminate spike single, 
erect, from the sheath of the highest pistillate, with a lanceo- 
late or eblong acute scale, whiteon the margin and green 
