66 CYPERACEAE juss. (Cyperus.) 



ciniina simillinia, i(em ad ripas flnmini.s Amazomim lecia, in 

 horbario Poeppigiaiio suppolnnt. 



172. 0. PRINCEPS. Cnlmo superne trigono, glabro; 

 foliis ....; nmbella composita , ninltiradiata; radiis creberrimis, 

 elongatis, compressis, glabriuscnlis ; umbellnlis 3-6-radiatis; ra- 

 diis parlialibns simplicibns, elongalis, inaeqnalibus, supernc 

 polysiacbyis; involucro polypbyllo, umbella breviorc; foliolis 

 planis, rigidis, margine scabris; iiivolucellis 7-11-pbyllis, umbel- 

 lulam paulo superanHbns; spicis spicato-dispositis, patcntisimis, 

 linearibus, conipresso-ancipilibus , snbl9-tloris; sqviamis ovato- 

 oblongis, obtusis, inferioribns submucronulatis , carinato-navicn- 

 laribns, latoriJ)us flavescentibus, dorso fcrrugineo -lineolatis, ca- 

 riiia subtrinervia, "viridi, utraquc ))asi dccurrente, flavida, 

 solnbili; achenio oblongo, obtusiusculo , trlangulari, cinereo- 

 pallido, squama fcre triplo breviore. — Rio .laneiro. Sellow lo- 

 git. 2\. — Spicae 6-8 linoas longae, sessiles, basi squamis duabus 

 vacnis instrnctao, qnarum infima subulata. Stamina tria. Fila- 

 menta persistonlia, longissima, hyalina. Antberae linoares, flavao, 

 angnlis appondicoqueacntala ferruginoae. Stylns trifidus, forrugineus, 

 longe exsertns. Acbenium laovo, nitidulum, auricnlis rhacheolae 

 panlo brcvins. Praeccdcnti proximns, difTort praesertim involncel- 

 lis umbella longioribus, spicis mnlto majoribus, subl9-floris. 



173. C. COMOSUS. Cnlmo trigono , glabro , basi vaginato 

 (ex Willd.); nmbella composita, 7-12-radiata ; umbellulis 5-10- 

 radiatis ; radiis partialibns simplicibus, supcrne polystachyis ; 

 involucro snb9-phylIo, nmbella breviore; involucollis 7-8-phyIlis, 

 longissimis, membranaceis, planis, marginc scabris ; spicis spica- 

 tim disposilis, patontibus, lineari-oblongis, 6-10-floris; squamis 

 subrolundis, mucronatis, carinato-navicnlaribns, dorso forrngi- 

 neis, carina viridi, laterlbus hyalino-albidis, basi utraque decur- 

 rontc, albida, solubili ; achenio olliptico, trigono. Papyrus comosa 

 Willd. in AcL Acad. Berol. 1806. 74 et hcrb. n. 1416. Ilumb. 

 et Klh. JVov. Gen. 1. 218. Cyj^orns affinis Roem. et Schtdt. 

 Sysf. 2. 213. ■ — Quayaqnil Qnifonsinm. 2|i — Spicae snppefcntes 

 nondum pcrfoctae. Squamac arcte imbricafae, obsolotc 7-ner- 

 viae; alis rhachoolao solnbilibus, lanceolatis, acntis. Stamina 3. 

 Anthorae lineares, flavae; appondicc clongata, acutata, fcrrugi- 

 noa. Sfylus trifidus. Forma C. gigantei? 



174. C. CUPKEUS Prc«/. in Rel. Ilaenk. 1. 172. Culmo triquctro, 

 inforne folioso ; foliis culmo longioribus, planis, margine scabris ; 

 involncro 5-phyIIo, nmbollam oxcodento; involucollis nullis ; uni- 

 bolla 8-radiata; radiis olongalis ; sj)iculis linearibus, 14-floris, 

 imbKicatis, donse spicatis; glumis lancoolafis, obiusis , uniner- 

 viis; frncfn oblongo, trigono. Fresl. — California. 7\. — Planta 

 Presloana in horb. reg. Berol. asservafa cst forsau nil nisi spe- 

 cnnen valde juvcnile C. comosi; descripfio soqnilnr; Culnnis ab- 

 breviatns (pollicaris), triangnlaris , glabcr, basi foliatns. Folia 

 cnlmo longiora, latiuscula, niembranacea^ plana, margine scabra. 



