Caricography. 265 
21. C. Muhlenbergit. Schk. 
Muh. Pursh, Eaton, Persoon. No. 49. 
Schk. tab. Vyy. fig. 178. 
Spiculis alternis sub- -quinis ob(usis approximatis superne 
masculis; fructibus ovatis compressis nervosis bifidis mar- 
gine scabris sub-divergentibus, squama ovata mucronata 
paulo brevioribus. 
This species is admirably figured in Schk., and though 
rather a rare plant, has very distinct characters. Culm 
12—-18 inches high, triangular, striate, scabrous above ; 
leaves sheathing linear-lanceolate, glabrous, scabrous on the 
edges, keeled, longer than the culm, lower ones abbrevia- 
ted; sheath glabrous, striate, terminating in a straight sti- 
pule opposite the leaf; spikes 5—7, rather clustered, stam- 
inate above, supported by an ovate bract ending in a sca- 
brous awn, longer than the spikelet; fruit ovate, compres- 
sed, somewhat concavo-convex, scabrous, or ciliate-serrate 
on the edge, bidentate, nerved, and somewhat diverging ; 
pistillate scale ovate, nearly the length of the fruit, and ter- 
minating in an awn extending a little beyond the fruit. 
Stigmas 2, 
In the aggregation of the spikelets, this species often re- 
sembles C. cephalophora, from which, however, it is easily 
_ distinguished by its fruit, and scale. 
Found on the honder of mountain woods, with C. ce- 
halophora, and C. straminea—Stockbridge. Also at 
Phillipston, N.Y. Dr. Barrett. 
22. C. sparganioides. Muh. 
Moh. Pursh, Eaton, Persoon. No. 62. 
Schk. tab. Lil. fig. 142. 
Spiculis superne masculis sub- octonis ovatis sub-distan- 
tibus bracteatis; fructibus ovatis compressis margine sca~ 
bris divergentibus acuminatis bidentatis, squama ovata mu- 
cronata duplo majoribus. 
Culm 18—24 inches high, leafy towards the base; leaves 
nearly flat, striate, glabrous, three lines broad, lanceolate, 
nearly as long as the culm, abbreviated near the base; 
sheaths striate ; stigmas two; spikes many, clustered above 
and somewhat remote below, ovate, supported by ovate- 
lanceolate scabrous bracts, sometimes leafy and much lon- 
ger than the spikelets; fruit diverging and nearly horizontal, 
Vor. VIITL.-—No. 2 34 
