79° CYPERACEAE. 
25. Scirpus Péckii Britton. Peck’s Bul- 
tush. (Fig. 633.) 
anon Peckii Britton, Trans. N. Y. Acad. Sci. 11: 82. 
1592. 
Perennial by rootstocks, culms slender, trian- 
gular, 114°-3%° tall, leafy. Leaves elongated, 
2//-5’’ wide, rough-margined, the upper overtop- 
ping the culm, those of the involucre 3-5, the 
longer of them exceeding the inflorescence; umbel 
1-2-compound, large; spikelets cylindric, obtusish, 
3//-5’’ long, in capitate clusters of 2-10 at the ends 
of the raylets or some of them distinctly pedun- 
cled; scales dark brown, keeled, mucronate, falling 
early; bristles 4-6, downwardly barbed from be- 
low the middle to the summit, longer than the 
achene; style 3-cleft; achene 3-angled, \/’’ long, 
oblong, narrowed at each end, slender-beaked. 
EF 
4 
Scirpus divaricatus Ell, Bot. S. C. & Ga. 1:88. pi. 2. 
J. 4. 1816. 
Perennial (?). Roots fibrous, culms obtusely 
triangular, smooth, rather slender, 2%°-4° tall. 
Leaves 2//-4/’ wide, rough-margined, the upper 
and those of the involucre not exceeding the in- 
florescence; umbel decompound, the primary rays 
very slender, sometimes 6/ long, widely spreading 
or drooping; raylets filiform; involucels setaceous; 
spikelets mostly solitary at the ends of the raylets, 
sessile or peduncled, linear-oblong, obtuse, 3//-6’’ 
long, 4’ thick; scales ovate, greenish-brown, sub- 
acute or obtuse, with a prominent midvein and 
scarious margins; bristles 6, flexuous, longer than 
the achene, somewhat pubescent, not barbed, 
shorter than the scales; stamens 3; style 3-cleft; 
achene sharply 3-angled, oblong, narrowed at both 
ends, apiculate, nearly white, not shining. 
In swamps, Kentucky to Missouri, south to Florida and Louisiana. The spikelets sometimes 
partially develop into tufts of leaves. June-Aug. 
27. Scirpus lineatus Michx. Reddish Bulrush. (Fig. 635.) 
Scirpus lineatus Michx. F1. Bor. Am. 1: 32. 1803. 
Perennial by stout rootstocks, culms rather 
slender, triangular, erect, 1°-3° high, leafy, the 
upper leaves and those of the involucre not exceed- 
ing the inflorescence. ILeaves 2’/-4/’ wide, light 
green, flat, rough-margined; umbels terminal and 
commonly also axillary, decompound, the rays 
very slender, becoming pendulous; spikelets mostly 
solitary at the ends of the slender raylets, oblong, 
obtuse, 3//-5’’ long, about 1’ in diameter; scales 
ovate or oblong, reddish-brown with a green mid- 
vein, their tips slightly spreading; bristles 6, 
weak, smooth, entangled, much longer than the 
achene, equalling the scales or slightly protruded 
beyond them at maturity; stamens 3; style 3-cleft; 
achene oblong or oblong-obovoid, pale brown, nar- 
rowed at both ends, 3-angled, short-beaked. 
In swamps and wet meadows, Ontario to Georgia, 
west to Oregon and Texas. June-Sept. 
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