308 North American Cyperncea. 



(3. spikes ovate-oblong ; bristles pubescent-scabrous, tbe 

 pubescence spreading or pointing upward. 



Hab. Florida, Dr, Chapman ! and Dr, Baldwin! 



Obs. In this variety the spikes are twice as large as in the 

 common E. tiihcrciilo&a, and the bristles, instead of being his- 

 pid, are rather pubescent. On the upper part of the bristles, 

 the pubescence is directed upward, lower down it is spreading, 

 but it seldom occurs reflexed. The tubercle, also, is larger 

 than the nut. Still I regard the plant as a mere variety of E, 

 tuberculosa. 



^. 6 Sjyike ovate or elongated; scales memhranaceous ; bristles 

 1 — 4, slender, brittle, [rarely 0) ; Jiut roundish or trian- 

 gular, smooth ; style ^-cleft. — Scirpidium. 



13. Eleocharis acicularis, 11. Brown. 



Culm setaceous, angular and sulcate ; spike ovate, subcom- 

 pressed, acute, few-flowered ; scales oblong, somewhat obtuse ; 

 bristles 3 — 4, short and very slender, (sometimes 0); nut ob- 

 long, rather acute at each end, nearly terete, many-ribbed, with 

 fine transverse lines ; tubercle minute, triangular, acute. 



Eleocharis acicularis, R. Brown, jjwdr, 1, p, 224, (in obs.) ; Rcem. Sf 

 Schult. syst. 2. p, 154 ; Bchult. manU §. p. 90; Hook. Jl. Lond. nav ser. 

 9. t. 49. 



Scirpus acicularis, Linn. ; Willd. sj). 1. p. 295 ; Vahl, enum. 2. p. 25 ; 

 Pursh, Jl. 1. p. 54; Torr.! Jl. I. p. 45; Beck! hot. p. 424; Spreng. 

 syst. 1. p. 204; Darlingl. jl. Cest. ed. 2. p. 20; Gray! Gram. S( Cyp. 

 part 2, no. 133. 



S.trichodes, Muhl.! gram. p. 30; Elliott, sk. 1. p. 76; Big.Jl. Boat. 

 ed. 2. p. 2. 



S. capillaceus, Michx. ! Jl. 1. p. 30 ; Pers. syn. 1. p. 65. 



S. ChjBta, Schult. mant. 2. p, 72, 



Scirpidium acicularc, N. ah Esenh. in Linnaa, 9. p. 293, 



Culm 2 — 8 inches long, generally very slender and hair-like. Spike 



