Monograph of North Amrricau Rht/nc}iospora. 217 
subconfertis, ovatis ; mice l:ini, ovata, lenticulari, tuberculo 
brevi apiculata, setis sursum hispidulis subaequante. 
R. distans, Nutt Gen. I. p. 33, noii Vahl? nee Elliott. 
Schoenus distans, Michx. Fl. I. p. 36, et Herb! Pers. Syn. 
L p. 60. 
Culm rather slender, i — 2 feet high, obtusely trigonous. Leaves narrow- 
linear, flat ; the lower ones 4 — 6 inches in length ; the upper ones 
shorter. Corymbs fascicled ; the (2 or 3) upper ones aggregated at 
the summit of the culm; the lateral ones (1 or 2) distant, on short, 
■exsert peduncles. Spikelets ovate. Glumes fuscous, broad-ovate, 
mucronate. Bristles 6, minutely hispid upward, about as long as the 
nut. Nut smooth, broad-ovate, lenticular. Tubercle compressed- 
•conic, a little dilated at the base, one-third the length of the nut. 
Hab. In Carolina, Michaux ; Wilmington, N. Carolina, Mr. 
Curtis. 
/3. fasciculis laxiusculis ; setis nucem excedente. 
R. tenuis, Baldw. Mss. et Herb. ! 
Culm somewhat acutely triangular. Corymbs rather loosely fasciculate, 
the lower ones long-pedunculate. Bristles nearly twice the length of 
the nut. Tubercle not dilated at the base. 
Hab. Savannah, Georgia, Dr. Cutler, (in Herb. BaJduin.) 
Obs. The synonyms of Yahl and Pursh are omitted, as it is 
impossible to determine the plant to which they belong. 
They may be referred with about an equal chance of cor- 
rectness to R. glomerata, R. gracilenta, and the present 
species. Var. /3, although differing in the above-mentioned 
particulars, and uniformly having bristles longer than the 
ntit, is not, I think, specifically distinct. 
29. Rhynchospora glomerata, Vahl. 
R. corymbis fasciculato-glomeratis vel subspicatis, axillaribus 
terminalibusque, interdum germinatis ; spiculis ovato-oblon- 
gis ; nuce laevi, obovata, lenticulari, basi attenuata quasi sti- 
