46 CYPERACEAE juss. (Cyperus.) 



pTCSso-navicnlaribus, carinatis, apice compressis , acutiusculis, 

 13-nerviis, sortliile stramineis, punctnlis lineolisque subtilissimis 

 jcrrni^ineis conspersis; aclienio obovaio-subrotundo, aequilatero- 

 triquctro, laevi, castaneo-nigro, nitido, squama triplo quadru- 

 plovc brcviore. — India orientalis. 2]- — Rbizoma repens. (Roxb.) 

 Sqnamac apicc compressae et internc snl) apicc emarginatae. 

 Filamenta 3?, byaliim-albida. C. obtusiiloro proximus , diflcrt 

 spicis triplo longioribus. 



126. C. MARGARITACEUS P'aJiL Eniim. 2. 307. JVilhl hcrh. 

 91.1291. Rbizomate borizontali, repente; cnlmo gracili, triangu- 

 larijglabro, basi folioso; foliis culmo brevioribus, angustis, subcari- 

 jialis, rigidis, glabrinsculis ; spicis 4 vel 5, aggregatis, oblongis, 

 conqjressis, 20-22-noris; involncro tripbyllo, spicas superantc; 

 sqnamis approximatis, ovatis, compresso-navicularibus, carinatis, 

 apice compressis, acutiusculis, subcoriaceis, obsolete 19-21-ner- 

 viis , sordide stramineis, punctuiis lineolisquc ferrugineis con- 

 spersis; acbenio elliptico, aequilatero-triangulari, mucronato, ca- 

 staneo-nigro, laevi, nitido, squama triplo breviore. C. eburneus 

 (ex Guinea) Thonnins^ in llornem. herh. ■ — Gninea. 2\^ — lila- 

 menta 3, persistentia, elongata, byalino-fuscescentia. Ovarium 

 oblongnm, triquetrnm. Stjlus elongatns, iVrrngineus, trifidus. 

 Acbenium medio olivaceum, apicem basimqne versus castaneo- 

 nigrum, tardius totum castaneo-nigrnm. Diifert .a praecedente: 

 spicis paucioribus, brevioi"ibus, sub20-floris, sqnamis snbcoria- 

 ceis, 19-21- nerviis achenioque elliptico, triangulari (nec tri- 

 qnetro). 



10) Arenarii sive repentes. — Spicae muliiflorac, compres- 

 sae. Squamae approximatae, latac, naviculares, superne 

 carinatae, acutiusculae, mucronatae vel mucronato-arista- 

 tae, rarius mnticae, mnlti-, rarissime 1- v. 3-nerviae, 

 Stamina tria. Acbenium interne plannm, externe con- 

 vexo-angulatum, rarius aequilatero-triangulare, plcrnmque 

 squama quadruplo quintuplo brevins. — Radix saepe re- 

 pens et stolonilVra. — Sectio minus naturalis; C. are- 

 narius, C. maritimus, C. nudicaulis, C. eifusus et C. tu- 

 berosus platjstacbyis affines; C. cepbalotes similis C. re- 

 flexo?; C. aegyptiacus Glox. cum C. rubicundo affinitate 

 quadam conjunctus; C. rubicundus, C. exilis ct ? C. leu- 

 coloma deniquc aristatos inter ct comprcssos qnasi nic- 

 dinm tenent. 



^ 127. C. ARENARius Retz. Ohs. L 9. {Phihi. Alm. t. 300. 

 /. 7.) Vahl. Knum. 2. 298 et hcrh. Nee.s ah Esenh. in Jfight. 

 'Jio1.ll. (JFall. Caf. «.3535.) JrHld. herh. n. 1279. Canesct^nti- 

 viridis; radire longe repente, sarmentosa; culmis teretiuscnlis, 

 sulcatis, glabris; foliis subulatis, latcribus compressinscnlis, in- 

 terne caiialicnlatis, acutis, rigidis, glabris; spicis circiter 16 (7-8 

 ex Vabl.), capitato-cougcstis, ovato-lanceolatis, comprcssis, 18- 



