Scii'pUS. TRIANDRIA MOXOGYNIA. 213 



This is a native of the same places with the last described. 



Root stoloniferous, &c. as in S. plantaginus. Culm erect, 

 from two to three feet high, naked, three-sided, angles sharp, 

 smooth, not articulated, nor interrupted inwardly. Leaves 

 none, but a sheath or two embracing the base of the culm. 

 Spike as in S. plantaginus, but the flowers are more numer- 

 ous. Sca r es imbricated seemingly without order, smooth, 

 lapped, margins broad, and membranaceous. Stamens, bris- 

 tles, &c. as in the two preceding species. 



5. S. aculaiuptlus. R. 



Culms from two to three feet high, triangular. Spike 

 terminal, tapering, acute; scales somewhat acute; seeds 

 bristly. 



Crows in similar places to those which produce the tAvo 

 last species. 



Root as in the last species. Culm three-sided, from two 

 to three feet high, naked, smooth; angles very sharp, even 

 almost winged. Leaves no other than a sheath or two in- 

 volving the base of each culm. Spike terminal, &c. as in the 

 two former. Scales disposed spirally, oval, somewhat acute, 

 striated, margins membranaceous. Filaments membranace- 

 ous. Bristles, &c. as in the former two. 



Obs. It differs from S. spiralis in having the angles of the 

 culm sharp. In having the flowers few and disposed spiral- 

 ly". In having the scales striated, oblong and somewhat 

 pointed. 



6. S. met This. R. 



Culms from one to two feet high, three-cornered. Spike 

 terminal, sub-cylindric. Scales obtuse. Seeds bristly. 



A species resembling the last, and growing in similar 

 places. 



Root as in the species already mentioned. Culm erect, 

 *me or two feet high, smooth, three-sided, angles rounded. 



N a 



