56 



XRIANDRIA MONOGYNIA. ScirpUS. 



istrifidis, umbella decomposita, culmo tereti. 



'jalidus. 



rolustus. 



14. 



15. 



latis, sty] 



Fahl enum. pi. 1. p. 267. IVUld. sp. pi. I . p. 296. 

 Icon, Fl. dun. t. 1142. Host. gram. 3. t. 61. 

 In stagnant waters : Canada to Carolina. If. . July. v. v. 

 S. aphyllus, spicis ovato-oblongis, squamis durso villosis, 



stylis bifidis, vimbella decomposita, invoiucro brevis- 



simo apice tereti. Fahl. enum. pi. 2. p. 68- 

 In lakes and ponds : Canada to Carolina. 11 . Aug. v. v. 



From four to ten feet high. 

 S. spicis oblongis, corymbo composito, involucris poly- 



phyllis longissimis, involucellis ovatis longissime aris- 



tatis, squamis acutis aristatis, apice laceris, culmo tri- 



qnetro folioso. 

 S. maritimus /3 macrostachyos. Mich.fi. amer. 1. p. v32. 

 In salt-marshes and on the banks of rivers, common. 



1/ . Aug. V. V. Certainly specifically distinct from 



S. maritimus, with which I carefully compared it. 



16. S, spiculis sessilibus conglomeratis oblongo-ovatis mu- 

 croiie brevioribus, culmo acute triquetro nudo. Pers. 

 ench. 1. p.68. 



S. triqueter. Mich.Ji. am.er. 1. p. 30. 



In salt marshes, frequent. 7/ , July, Aug. v. v. 

 ly. S. spicis oblongis congestis, corymbo supradecomposito 

 folioso, squamis oblongis obtusiusculis viridibus^ cul- 

 mo folioso trigone. 



Icon. Host. ^ram. 3. t. 68. Fl. dan. t. 30/. . 



In Canada. Michaux. 1/. +. 

 exaltatus. 18. S. spicis brevi-ovatis congestis, corymbo composito^ 

 squamis rhomboideis carinatis mucronatis coloratis, 

 culmo folioso obtuse trigono. 



S. brunneus. Muhlh. in litt. 



S. culmo altissimo subscandente, corymbis viviparis basi 

 ramulorum floriferis. 



In shady woods : New York to Carolina. 1/ . July, 

 Aug. V. V. The viviparous variety grows in deep shady- 

 swamps, and frequently acquires the height of ten 

 feet and more. 



S. spicis ovatis pedicellatis, corymbis subcompositis ax- 

 illaribus terminalibusque, culmo tereti. Fahl. enum,. 

 pi. 2. p. 272. 



In Virginia and Carolina. 7/ . July. v. v. 

 20. S. spicis oblongo-ovatis pedicellatis, corymbis axillaribus 

 terminalibusque supradecompositis, pedunculis elon- 



sylvaticus. 



viviparus. 



nit ens. 



lineatus. 



19- 



