44 Caricog raphy. 
appears to have considered it the same as C. riparia, al- 
though he referred it to the fig. of C. lacustris. Schk., and 
although Schk., Persoon, and others consider the two as dif- 
ferent species. It cannot be C. striata, Mx. as Persoon sus- 
pects ; for that species has pubescent fruit, and is doubtless 
the C. pellita, Muh. 
63. C. ovata. Rudge. 
Linn. Trans. VII. tab. IX. fig. 1. 
Pursh, Rees’ Cyc. no. 69. 
Spicis androgynis apice staminiferis quaternis vel quiuis 
ovatis densifloris pedunculatis pendulis bracteatis, fructibus 
tristigmaticis Ovalis compressis acuminatis bifidis, squamze 
ovate acute equalibus. 
Culm acutely triangular, scabrous; leaves erect, slender, 
scabrous on the edge; bracts leafy, with very short sheaths; 
spikes 4—5, staminate above, ovate, pedunculate, closely 
flowered, pendulous; fruit ovate, compressed, acuminate, 
bifid, stigmas three; pistillate scale ovate, acute, brown, 
long as the fruit. 
Found in Canada and Newfoundland—Rudge and Pursh. 
The preceding description is derived from that in Rees’ Cyc., 
and published in the hope that this plant may be found by 
some of our Botauists in the northern part of the U. States. 
The species seems to be very distmet and well characterized, 
and the writer is very desirous of obtaining a specimen. 
64. C. cristata Schw. 
Spiculis androgynis inferne staminiferis sessilibus 6—14 
arcte aggregatis globosis bracteatis; fructibus distigmaticis 
ovato-oblongis compressis divergentibus alatis rostratis acu- 
minatis bifidis convexo-concavis margine ciliato serratis, 
squama oblongo-lanceolata longioribus. 
Culin 1—3 feet high, acutely triangular, scabrous above, 
glabrous; leaves linear-lanceolate, abbreviated below, 
shorter than the culm, striate, with long striate sheaths ; 
bracts ovate, setaceous, the lowest nearly the length of the 
whole spike; spikes 6—14, crowded into a head, globose, 
sessile, witb a few staminate florets at the base; fruit ovate- 
oblong, winged, rostrate, acuminate, bifid, striate, very rough 
on the margin so as to have a sub-crested appearance, convex 
above and rather concave below, diverging; stigmas two ; 
pistillate scale oblong-langeolate, membranaceous, abeut two- 
