356 MACKENZIE: NoTEsS ON CAREX—XIII 
Cespitose, the rootstocks very short-prolonged, stout, tough, 
fibrillose, blackish, the culms 3-10 dm. high, exceeding the 
sagt very rarely shorter, stiff but slender, 2.5-4.5 mm. thick 
t base, acutely triangular above with flat sides, obtusely tri- 
pee below, roughened eneath the head, brownish at base, 
c 
erect-ascending, flat or slightly canaliculate, light- -green, thinnish 
but rather firm, 3-6 mm. wide, 2-4 dm. long, long-tapering, 
roughened on ine. margins and towards the apex, the sheaths 
tight, thin, cross-rugulose, red-dotted ig greenish-white 
ventrally, short- jeaidete cat upward pacin base of blade and 
truncate or slightly convex at mouth and slightly thickened 
head, 2-7 cm. Raeaty fae cm.) long, 8-15 mm. thick, narrowly 
oblong-ovoid, the lower clusters not separated ‘and usually not 
strongly compound, the upper densely teased: heads green- 
ish-yellow when young, golden-brown when mature, the in- 
dividual spikes distinguished ide difficulty; staminate flowers 
a pic ith the 
erigynia; perigynia plano-convex, membranaceous, typically 
golden-yellow at pean ovate to broadly ovate, usually 
2.2-2.7 mm. long, I.5-I m. wide, round-tapering at base, 
short-stipitate, flat, ie and sharp-edged to base ventrally, 
serrulate at base of beak, low convex and nerveless or faintly 
few-nerved dorsally, not or but scarcely green-margined above,. 
abruptly contracted into the serrulate, dorsally cleft, shallowly 
bidentate beak, much shorter than the body, the teeth short, 
ppressed, triangular, dull reddish-brown; achenes lenticular, 
oblong-quadrate, short-stipitate, rounded at base and apex, 1.5. 
mm. long; style slender, straight, jointed with achene, a 
at base; stigmas two, slender, rather short, reddish-bro 
Type: Paoli, Chester County, Pennsylvania, Pennell . Sony 
7598 (P.). 
SPECIMENS EXAMINED* 
MAINE: York, Davis (N.E.); also Fernald & Long 13017 
(N.E., H.); Wells, York County, Furbish (N.E.); York Harbor, 
* See footnote on page 351. 
