382 North America7i Cyperacea. 
Hypoporum Baldwinii. 
Culm triquetrous, smooth ; leaves linear, carinate ; spikelets 
about 3, in a terminal fascicle ; bracts and scales glabrous ; nut 
ovate, obscurely 3-sided, smooth, apiculate ; the base triangu- 
lar, destitute of pores. 
Culm 2 — 3 feet high, smooth, or slightly scabrous on the angles to- 
wards the summit. Leaves long, narrowly linear, smooth and rather 
rigid ; the margins minutely scabrous upward. Spikelets about 3, sessile, 
glomerate in a terminal fascicle, each subtended by a foliaceous bract. 
Sterile spikelet sessile in the upper fertile scale, many-flowered. Sta- 
mens 3. Nut (larger than in Scleria triglomerata) white, smooth but 
dull, obscurely 3-angled, conspicuously apiculate, radsed on a very short 
triangular base. 
Hab. Georgia, Dr. Baldwin! 
Obs. This species has the habit and general appearance 
of Scleria triglomerata ; from which, however, it is at once 
distinguished by its apiculate nut with a dull white surface, 
the absence of a hypogynium, narrower leaves, fewer and 
larger spikelets, &c. The particular locality in which Dr. 
Baldwin found this species is not recorded. It seems to have 
been confounded with Scleria triglomerata. 
Hypoporum interruptum, N. ah E. 
Culm triquetrous, and with the leaves, sparsely and minutely 
hirsute ; fascicles 4 — 6, alternate, sessile, and somewhat distant 
so as to form an interrupted spike ; scales of the fertile flowers 
oval or lanceolate, cuspidate, hispid ; nut smooth, subglobose, 
triangular below, each side furnished with a row of very 
minute pores. 
H. interruptum, N. ah Esenb. in Linnaa 9. p. 303. 
Scleria interrupta, Michx. ! fl. 2. p. 167, (not of Willd.?) ; Richard 
in act. soc. nat. hist. Paris (1792), 1. p. 113. 
