668 



dnplo latiora, fniclifero breviorca, plana, apice v.ilde attonuata, 

 margine scabra. Spica floreiis cyliiidrica, «liios fere pollices 

 longa, spiculis rompouitnr niimerosis, inferioribiis 4 — 5 ut 

 pliiriinnm remotiusnilis, reliqiiis adproxiiuatis imbricalis; spi- 

 culae inf. 7 — 8 fem. obiongac denuim squarrosae, bractoa 

 fulciiinlnr oblonga acuminat;i, intima in arislam spiculam saepe 

 aequautem altenuata; spicae niediae masc, supreinae fem. sunt. 

 Valvae oblougo-lauceolatae aeiitae plernmqne niucronatae fer- 

 rngineae, nervo pallidiore apicem versus scabro. Perigjuia 

 e niajoribus, valva miilto longiora, oblonga in roslrnm in- 

 curvuni ore bifidura margine sernilato- scalirum sensim atte- 

 uuata, utrinque nervoso- striata, glabra nitida, marginibus 

 acntis, dorso convexo, facie plana. Slii'm. 2. 



In paludosis humidisqiie ad fluvios, latus, fossas nbique 

 vulgaris. Mai. ^. 



16. €. arenaria Linn spec. U. p. 1381. Spica oblonga, 

 composita spiculis numerosis oblongis acntis, inferioribus re- 

 motiusculis fem., niediis androgynis, snnirois masc, bracteis 

 oblongis acuminatis, infima foliolo filiforrai spiculam aequante 

 terminata; valvis oblongis aoulalis ; perigyniis oblongis plano- 

 convexis, nervosis, in rostrum longum margine lato ciliato- 

 serratum, ore bifidum attenuatis; culrao triquetro incurvo fo- 

 liisque carinatis scabris. 



Willd. spec. IV. p. 223. Host. Anstr. II. p. 578. Ejnsd. 

 Gram. 1. p. 38. Schult. Oest. I. p. 128. Baumg. Trans. III. 

 p. 287. Koch Synops. p. 750. Hopp. Car. n. 11. Wahlenb. 

 Suec. II. n. 1037. Loisl. Gall. II. p. 292. Smith Britt. HI. 

 p. 971. 



Vignea arenaria Reichenb. Germ, u. 405. 



Ic. Host. Gram. I. T. 49. 



Radix longe lateque repens, pennam auserinam crassa, 

 sqnamis fuscis in fila fatiscenlibus tecta, hie ibique fascicnhim 



