North American Cyperacece. 291 
(3. Nut on a very short stipe ; bristles as long as the claws of 
the petals, somewhat denticulate ; petals cordate, with a short 
acuminated point. 
Culm 2 feet high, slender; sheaths very hairy. Umbels composed of 
5 — 9 spikes. Awns of the scales nearly straight. 
Hab. Southern States, Delile! 
y. Nut twice the length of its stipe ; petals ovate, cuspi- 
date, and terminating in a short bristle ; the claw shorter than 
the retrorsely scabrous bristle ; leaves and sheaths hairy. 
F. squarrosa, Chray! Gram. Sf Cyp. part 1. 78; Beck hot. p. 129. 
Culm 12 — 18 inches high, slender. Leaves and sheaths hispidly hairy. 
Spikes mostly terminal, 6 — 12 in an irregular umbel or cluster. Petals 
rounded at the base, the summit attenuated into a long slender point or 
short bristle. 
Hab. Bogs and swamps. New Jersey, particularly in the 
pine barren region, and along the sea coast! — September. 
8. {puniila.) Nut somewhat obovate, gradually attenuated at 
the base ; petals ovate-lanceolate, narrow at each end ; bristles 
longer than the nut, retrorsely scabrous ; spikes 2 — 6, mostly 
terminal, sessile ; leaves smoothish. 
F. squarrosa, /3. pumila, Torr.! fi, 1. p. 68, 
F. pumila, Spreng. syst. 1. p. 237; Schult. mant. 3. p. 546. 
F. Torreyana, Beck ! hot. p. 429. 
Culm 3 — 6 inches high, pubescent above ; lower sheaths pubescent ; 
throat hairy. Involucre longer than the spikes ; 1 — 2 leaved. Spikes 
ovate, thick. Scales ovate, obtuse, hairy, terminated by a recurved 
awn nearly the length of the lamina. Bristles straight, very scabrous. 
Petals much attenuated at the base, obscurely 3-nerved,the summit 
tapering into a long cusp, or short bristle. Nut broadest near the top 
abruptly acuminated. 
Hab. Sandy wet places. Near Babylon, Long Island, 
and in the pine barrens of New Jersey ! ; Tewksbury pond, 
near Boston, B, D. Greene, Esq. ! — August — September. 
£. {aristiilata.) Nut on a short stipe, dilated in the middle ; 
