BULLETIN 
OF THE 
TORREY BOTANICAL CLUB 
Vol. Xl.l New York, August, 1884. [No. 8 
A List of Cyperacese 
Collected by the late Mr. S. B. Buckley from 1878 to 1883 in the 
Valley of the Lower Rio Grande, in Texas and Northern Mexico. 
By N. L. Bkitton. 
r 
Cyperus flavicomus^ Torr. — A large form with rays five inches long, 
30-45-flowered spikelets, and scales of a rich chestnut-red color, the 
nuts persistent. 
Cyperus microdontus, Torr., var, Texensis, Torr. — I do not agree 
with Nr. C. B. Clarke* in reducing this plant to a variety of the trop- 
ical C.polystachyus, Rottb. . 
Cyperus erythrorhizos, Muhl. — A form only three or four inches 
high, caespitose; resembling the var, pumilus, Engelmann, in Torrey 
Herbarium, from St. Louis, to which I refer also the C occidentalism 
Torr., from the Northwest coast by Dr. Hooker, and from the mouth 
of the Willamette River by the Howell brothers. 
Cyperus erythrorhizos, MuhL — A large, erect form, with rays and 
involucral leaves also erect; otherwise hardly differing from the type. 
I refer to this Nos. 876, 2,306, and 3,223 of the Herbarium Berlan- 
ditrianum, Texano-Mexicanum, and, with some hesitation, a specimen 
collected by Duges at Guanajuato,! the *' tule grande " of the Mex- 
icans. These forms may later be best considered as a variety to be 
known as var. erectus. 
Cyperus aristatus^ Rottb. (C. inflexus^ MuhL) 
Cyperus cyrtolepis^ Torr. &: Hook. 
Cyperus rufescens, Torr. & Hook., var. denticarinatus, tu var. 
Scales with a prominent keel, which is armed with small hyaline teeth 
^car its apex. Stamen solitary. Umbel appearing somewhat lateral. 
Drummondi 
th 
Cyperus aureus, HBK., i., 205, (?).— Agreeing quite well with 
e description, and the same as a fragment so named in Herb. Tor- 
j"ey, collected at Havana by D. B. Greene. The present specimens 
have the following characters: Culm one to two feet high, smooth. 
Leaves about the length of the culm, three lines wide, smooth. In- 
volucre of about six, much elongated leaves, and several short ones, 
•^tiibel of about ten rays, two or three inches long, and several nearly 
sessile ones, the stronger rays compound, involucellate.^ Heads 
composed of 6-14, linear, obtuse spikelets, which are 3 or 4 lines long, 
^cales ovate, mucronate, loosely spreading, and curving upwards, of 
'^Journ, Linn. Soc. xxi., 55. 
fSee Mr. Watson's List in Proc. Amer. Aca<L. xvui., 170. 
