3d 
validus . 
rolustus . 
americanus . 
sylvalicus. 
exaltatus . 
viviparus. 
nitens. 
lineatus . 
TfUANDRIA M 0 N 06 YNIA. ScirpUS. 
latis, stylis trifidis, umbella decomposita, culmo tereti» 
Vahl. enum. pl. 2. p. 26/. Willd. sp . pl. 1 p. 296. 
Icon. .F/. dara. £. 1142. Host. gram. 3. f, 6l. 
In stagnant waters : Canada to Carolina. 2/ . July. u. r. 
14. S. aphyllus, spicis ovato-oblongis, squamis dorso villosis, 
stylis bifidis, umbella decomposita, involucro brevis- 
simo apice tereti. Vahl. enum. pl. 2. p. 208. 
In lakes and ponds : Canada to Carolina. 2/ . Aug. v. v. 
From four to ten feet high. 
15. S. spicis oblongis, corymbo composito, involucris poly- 
phyllis longissimis, involucellis ovatis longissime aris- 
tatis, squamis acutis aristatis, apice laceris, culmo tri- 
quetro folioso. 
S. maritimus j6 macrostaehyos. Mich.fi- amer. 1. p. 32. 
In salt-marshes and on the banks of rivers, common. 
2/ . Aug. v. v. Certainly specifically distinct from 
S. maritimus , with which I carefully compared it. 
16. S. spiculis sessilibus conglomeratis oblongo-ovatis mu- 
crone brevioribus, culmo acute triquetro nudo. Fers, 
ench. 1. p. 68. 
S. triqueter. Mich.fi amer.l.p.3Q. 
In salt marshes, frequent. 2/ . July, Aug. v. v. 
17. S. spicis oblongis congestis, corymbo supradecomposito 
folioso, squamis oblongis obtusiusculis viridibus, cul- 
mo folioso trigono. 
Icon. Host. grain. 3. t. 68. FI. dan. t. 30?. 
In Canada, Mickaux. 2/. +. 
}8. S. spicis brevi-ovatis congestis, corymbo compositq, 
squamis rhomboideis carinatis mucronatis coloratis, 
culmo folioso obtuse trigono. 
S. brunneus. Muhlb. in iitt. 
/3 S. culmo altissimo subscandente, corymbis vivipaps basi 
ramulorum floriferis. 
In shady woods : New York to Carolina. 2/ . July, 
Aug. v . v. The viviparous variety grows in deep shady 
swamps, and frequently acquires the height of ten 
feet and more. • 
19. S. spicis ovatis pedicellatis, corymbis subcompositis ax- 
illaribus terminalibusque, culmo tereti. Vahl. enum. 
pl. 2.p.272. 
In Virginia and Carolina. 2/ . July. v. v. 
20. S. spicis oblongo-ovatis pedicellatis, corymbis axillaribus 
terminalibusque supradecompositis^ pedunculis elon* 
