TRIANDRIA. MONOGYNIA. 341 



tenf.es y viginnqunti/orflo?-ae , acutae : valvulae 

 ovatae, acutiusculae , pallide virescentes vel 

 latere -purpureae , sublaeves^ margine mem- 

 hranaceae. 



193. CYPERUS spiculis lineari-oblongis, confertis- pusmlatuj. 

 simis convexis obtusis, valvulis margine spha- 

 celatis , involucro umbella longiore. 



Hahitat in Guinea. Thonning. 



Culmus pedalis , acute trigonus. Folia culmo 

 altiora, linearia, angusta , laxa. Involucrum 

 universale triphyllum : foliola margine laevitty 

 duo umhella longiora, unicuni semipedale ; par- 

 tiale vel nullum velfoliolum unicum - duo , seta- 

 ceum , umhelhda hrevius. Ochreae ohlique 

 truncatae, purpurascentes. Umbella composi- 

 ta , patentiuscula , quadri - quinqueradiata ; ra- 

 dius longior suht?'ipollicaris : partialis hi-tiira- 

 diata; radii hreves , patentes. Spiculae qua- 

 tuor-octo, vix lineas daas longae , decem-duo- 

 deciuflorae : co?ivexiusculae , ohtusae : valvu- 

 lae co?icavae, striatae, virides , margine 7?mcu- 

 la atro-purpurea. 



Affinis sequenti ^ diffe?'t: spiculis confe?'tissimis ^ 

 triph brevio?'ihus , ohlongis, nec lineari-lanceo- 

 latis : ochreis minime aristatis. 



94. CYPERUS spiculis lineari-lanceolatis compla- sphacelatns. 

 natis acutJs, valvulis margine sphacelatis, in- 

 volucro subtr^-traphjlio. 



Cyperus sphacelatus ; culmo triquetro ; umbella 

 simplicissima ; spicis hnearibus altcrnis com- 

 pressis , floscuUs margine sphacelatis. Rottb. 

 gram. ^6. 



H ahitat in Sm\nB.mo , Cajenna, Puertorico. in 

 ■ Guinea, Thonning. 



Culmus sesquipedalis vel hreuior , acute a?igula- 

 tus , inferne hi-t?^ifoliatus , interdum flavcsccns. 

 FoUa culmo breviora , li?iea?ia , superne mar- 

 gine scabra, pallide viridia. Involucrum tri- 

 tetra - hexaphylhim , duo vel tria umhella lon- 

 giora, structura folio?^um: partiaJe vel md- 

 lurru, vel duo foliola setacea umhellula hreviora. 

 Ochreae aristatae. Umbella i suhcomposita , 

 tri-septemradiata : radii fiUformes, lo?igior 

 interdum quadripollicai-is : partiales brevissimi 



