MONOECIA TRIANDRIA. 



537 



culate, cylindrical, pen- 



dulous; 



fruit 



elliptic, 



nearly round, ventri 

 cose, with a short beak 



and 



entire mouth. 



shorter than the ob- 



ternis, distantibus, pe- 

 dunculatis, cylindrace- 

 is, penduhs; fructibus 

 subrotundo - ellipticis, 

 ventricosis, brevissime 

 rostellatis, ore integris, 



squama oblonga aris- | long, awiied scale, 

 tata, brevioribus. , 



Sp. pL 4. p. 300. Pursh, 1. p. 38. Nutt. 2. p. 204. 



Stem about two feet high, acutely triquetrous, concave on the sides so as 

 to appear slightly winged, finely serrulate along the margins. Leaves long- 

 er than the stem, the lower ones sheathing, channelled, nerved, very gla- 

 brous, not even scabrous on the edges. Male spikes with us generally soli- 

 tary, slender, pendulous, the scales lanceolate, mucronate. Female spilces 

 generally three, not very distant, pendulous, on short peduncles merely en- 

 veloped,^ not inclosed, each terminated by a number of male florets; scales 

 ovate, with a long subulate point. Corolla ovate, compressed, terminating 

 «n a simple point, shorter than the scale. 



Grows in river swamps. 

 Flowers April — May. 



Stigmas two. 



21. Acuta. 



I 



c. 



spicis masculis 



binis, ternisve, foemi 

 neis subquaternis, sub 

 pedunculatis, subnutan- 

 tibus, cylindraceis, re- 

 inotis; fructibus oblon- 

 gis brevissime rostena- 

 tis, ore integro, squa- 

 mam oblongam acutam 

 sub aequantibus. 



Sterile spikes 2 or 

 fertile generally 



on 



short 



peduncles, 



somewhat nodding, cy- 

 lindrical, remote; fruit 

 oblong, with a very 

 short, entire mouth, 

 nearly the length of the 

 olblong, rather acute 

 scale. 



Sp. pi. 4. p. 304. Pursh, 1. p. 38. Muhl. Gram. p. 



^tem about two feet high, triquetrous, scabrous. Leaves narrow, keeled, 

 scabrous along the margin, the lower sheathing the base of the stem, the 

 upper sessile. Sterile spikes one to three, cylindiicalj the fertile about three, 

 jne upper sessile, the lowest on a short peduncle, and the summit of each 

 lor nearly one third of its length frequently < 



«<> 



VOL. li. 



occcupied with sterile florets. 



