CYPERACEAE. ~ 
7. Carex Louisianica Bailey. Louisiana 
Sedge. (Fig. 677.) 
Carex Halei Carey; Chapm. FI. S. States, 543. 1860. 
Not Dewey, 1846. 
C. Louisianica Bailey, Bull. Torr. Club, 20: 428. 1893. 
Culms slender, erect, smooth or very nearly so, 1°-2° 
tall. Leaves 1/’-2’’ wide, roughish, the upper over- 
topping the spikes; bracts similar to the upper leaves, 
rough; pistillate spikes 1-3, oblong, about 1’ long, 8’/— 
10’’ thick, erect, the lower slender-stalked, the upper 
nearly sessile; staminate spike solitary, long-stalked; 
perigynia ovoid, much inflated, smooth, strongly sev- 
eral-nerved, shining when mature, 5’’-6’’ long, about 
2%’ in diameter at the rounded base, tapering gradu- 
ally into the long 2-toothed beak, the small teeth 
slightly spreading; scales oblong-lanceolate, acumi- 
nate, about one-half as long as the perigynia; stigmas 3. 
S Swamps, Missouri to Texas and Florida. June-Aug. 
8. cack lupulina Muhl. Hop Sedge. (Fig. 678.) 
Carex ee Rudge, Trans. Linn. Soc. 7: 99. pl. so. 
ae Papo 
Carex fapating Muhl.; Schk. Riedg. 2:54. f 127. 1806. 
Carex lupulina var. pedunculata Dewey in ‘Wood, 
Bot. & Flor. 376. 1870. 
Glabrous, culms stout, erect or reclining, 1°-4° 
tall. Leaves elongated, nodulose, 2%4’/-6’’ wide, 
the upper ones and the similar bracts much over- 
topping the culm; staminate spike solitary or rarely 
several, nearly sessile or slender-peduncled, rather 
stout; pistillate spikes 2-5, densely many-flowered, 
sessile or the lower slender-stalked, oblong, 114/— 
214’ long, often 1’ in diameter; perigynia ascending 
or spreading, often short-stalked, much inflated, 
many-nerved, 6’’-9’ long, about 114’’ in diameter 
just aboye the base, tapering from much below the 
middle into a subulate 2-toothed beak; achene longer 
than thick; scales lanceolate, acuminate or aristate, 
one-third as long as the perigynia; stigmas 3. 
In swamps and ditches, Hudson Bay to western 
Ontario, Florida and Texas. June-Aug. 
Carex lupulina Bélla-villa (Dewey) Bailey, Mem. Torr. Club, 1:12. 1889. 
Carex Bella-villa Dewey, Am. Journ. Sci. (II.) 41: 229. 1866. 
Culm slender; pistillate spikes remote, slender-stalked, sometimes staminate at the summit, 
the perigynia widely spreading at maturity, the staminate spike sometimes branched and with 1 or 
2 perigynia at its base. Eastern New York to southern Ontario. 
A hybrid with C. vetrorsa is described by Professor Dudley (Cayuga Fl. 119. 1886). 
g. Carex lupuliformis Sartwell. Hop-like 
Sedge. (Fig. 679.) 
Carex lupulina var. polystachya Schw. & Torr. Ann. 
Lyc. 1: 337. 1825. Not C. polystachya Sw. 
Carex lupuliformis Sartw.; Dewey, Am. Journ, Sci. (II.) 
9: 29. 1850. 
Glabrous, culm stout, erect, 114°-3° tall. Leaves and 
bracts similar to those of the preceding species, much 
elongated; staminate spike solitary, stalked or nearly 
sessile, sometimes 4’ long; pistillate spikes 3-6, stalked 
or the upper sessile, densely many-flowered, 2’—3’ long, 
6’’-10’’ in diameter, often staminate at the a peri- 
gynia yellowish, at first appressed, later ascending, ses- 
sile, much inflated, several-nerved, 5’’-8’’ long, about 
2/’ in diameter above the base, tapering from below the 
middle to a subulate 2-toothed beak; achene as long as 
thick, its angles mamillate; scales lanceolate, awned, 
shorter than or equalling the perigynia. 
Swamps, Rhode Island to Del. and Minnesota, June-Aug. 
