208 CYPERACEAE, 
Carex monile monstrésa Bailey, Mem. Torr. Club, 1: 4o. 1889. A form with the terminal spike 
more or less pistillate, the pistillate spikes very small and loosely flowered, usually on very long 
stalks, found several years ago along the Concord River, Mass., has not since been collected. 
1g. Carex Tuckermani Dewey. ‘Tuck- 
erman’s Sedge. (Fig. 689.) 
C. Tuckermani Dewey, Am. Journ. Sci. 49:48. 1845- 
Glabrous, culm very slender, usually roughish 
above, erect or reclining, 2°-314° long. Leaves 
and bracts much elongated, commonly much 
overtopping the culm, 114’/-2'%’’ wide, some- 
times sparingly nodulose; staminate spikes 2 or 
3; pistillate spikes stout, cylindric, 1-2’ long, 
about 14’ in diameter; the upper sessile or nearly 
so, the lower stalked and usually spreading; 
perigynia very much inflated, yellowish-green, 
ovoid, prominently few-nerved, ascending, 
abruptly contracted into a subulate 2-toothed 
beak; scales lanceolate, smooth-awned, about 
half as long as the perigynia; stigmas 3. 
In bogsand meadows, New Brunswick to Ontario, 
New Jersey, Michigan and Minnesota. June-Aug. 
20. Carex bullata Schk. Button Sedge. 
(Fig. 690.) 
Carex bullata Schk. Riedg. Nachtr. 85. /. 766. 1806. 
Glabrous, culms very slender, erect, 1°-2%4° high, rough- 
ish above. Leaves and bracts very narrow and elongated, 
rather stiff, commonly overtopping the culm, rarely more 
than 2’’ wide, rough-margined, sparingly nodulose; stamin- 
ate spikes mostly 2, long stalked; pistillate spikes 1-3, usually 
2, light green, varying from almost sessile to long-stalked 
and spreading, many-flowered, oblong or oblong-cylindric, 
1/-114’ long, 414’/-6’’ in diameter; perigynia much inflated, 
ovoid, 21%4’/-3’’ long, spreading when mature, tapering into 
a subulate rough 2-toothed beak, shining, strongly nerved, 
2-3 times longer than the lanceolate acuminate or acute 
scale, or the uppermost scales obtuse; stigmas 3. 
In swamps, Massachusetts to North Carolina. June-Aug. 
al 
(Z 
21. Carex retrérsa Schwein. Retrorse Sedge. (Fig. 691.) 
Carex retrorsa Schwein. Ann. Lye. N. Y. I: 71- 
1824. 
Glabrous, culm stout, erect, smooth or slightly 
rough above, 1°-3%° tall. Leaves elongated, 
thin, rough-margined, sparingly nodulose, 2 %3’/— 
314’’ wide, the upper commonly exceeding the 
culm, the bracts similar, usually much overtop- 
ping the culm; staminate spikes I-3, short- 
stalked; pistillate spikes 3-6, ascending or 
spreading, all close together at the summit and 
sessile or very nearly so or the lowest distant 
and stalked, cylindric, densely many-flowered, 
1/-2’ long, about 14’ in diameter; perigynia 
ovoid, membranous, strongly few-nerved, yel- 
lowish green, about 3/’ long, reflexed at ma- 
turity, tapering into a subulate 2-toothed beak; 
scales lanceolate, acute, smooth, one-third to 
one-half as long as the perigynia; stigmas 3. 
_ In swamps and wet meadows, Nova Scotia to Manitoba, south to Massachusetts, Pennsylvania, 
Michigan and Minnesota. Also in Oregon (according to Bailey). Aug.—Sept. 
