TBIANDRIA MONOGYKIA 4i 



serrulate glume. JBeck, Bot. p. 442. Specim. Gray, Gram. 2. n%. 



1 QQ 



193. 



Haired, or chafft Carex, 



Culm 2 to 4 feet high, acutely triquetrous, striate, scabrous on the angles, leaf) 

 ?;clow. Leaves linear-lanceolate, striate, scabrous on the margin, lower ones 

 shorter than the culm, sheaths loose and strhite, upper ones, or bracts % surpassing 

 the culm, without sheaths. Stamz?iate spikelets mostly 2, long and linear, one 

 pedunculate, the other nearly sessile, sometimes bearing fruit at summit ; glumes 

 linear, with a membranaceous margin, terminating in a oiliate awn. Pistillutt 

 spikelets usually 4, two to 3 inches long, nearly cylindric, often attenuate at base, 

 and staminate at summit, pendulous, on shortish peduncles, the lower ones grad- 

 ually longer; glumes lance-linear, ending in a long, spreading, hispid or ciliate- 

 serrulate point, twice or three times as long as the fruit. Fruit ventricose, broad- 

 Ish ovoid, sometimes ovoid-oblong, subtriangular, nerved, with a prominent rib or 

 keel on each side, smooth ; beak short, entire. Seed compressed, obovate, acu- 

 minate. 



Hub. Swampy margins of rivulets: common. Fl. May. Fr. July. 



Obs. A somewhat variable species. Sometimes the fruit is shortish and broad- 

 qvoj\1, or obovoid,— at others ovoid-oblong, or lanceolate, and more than half as 

 long as the glumes. 



34. C. acuta, L. Staminate spikelets 1 to 3, erect ; pistillate spike- 

 lets about 3, rather distant, cylindric, subsessile, often staminate at 

 summit ; fruit compressed, ovate, acute, orifice entire, about as long as 

 the lanceolate glume. Beck, Bot. p. 442. 

 Acute, or Sharp Carex. 



Culm 1 to 2 feet high, deeply striate, triquetrous, very acute and scabrous on the 

 angles, leafy at base. Leaves linear, keeled, scabrous on the margin, often longer 

 than the culm, radical ones very numerous; sheaths striate, sometimes filamen- 

 tous. Staminate spikelets 2 or 3, (often solitary,) erect, of variable lengths, sessiir 

 except the uppermost one; glumes oblong, mostly obtuse. Pistillate spikelets 

 mostly 3, the lowest on a very short peduncle, upper ones sessile, often staminate 

 at summit ; glumes lance-oblong, rather obtuse, sometimes acute, dark brown 

 on the sides with green keel, about as long as the fruit. Fruit compressed, 

 ovate, elliptic, or obovate, smooth, nerveless or indistinctly nerved on the back 

 Sr ^ §h0 ^ emire ^ ^ co ^ e8 ^obovate,mucronate, P Hnc- 

 Hab. Swamps, forming large tufo, or tussocks .-common. /V.April. F r . June. 



t t Stigmas 3. 



S; 2 C ;rT,T A ; M ",l- Staminatc s P ikcie * ^out % ; ^Hate 8P ik e - 



Ltohl Jk W*"*™**™*' cre <*> rather distant, upper one sessile ; fruit 

 Inspd, pubescent, tnquetrous-ovoid, with a short bicuspidate beak abo^t 



C. striata. Mx. Am. 2. p. 174. 

 Purred Carex. 



^£t^^^^ lriqUelr0US and scab ™* **>*e, «oo* Mow. 

 «fi 2 «r 9, (•ometuae* « upper one pedunculate; glume, ovate.acwc. 7SSX 



