CYPERACEAE juss. (Cypenis.) 41 



cnlis iii apice radtolorum 4-6, coii<i2;uis,, sul)j)almalim paienllbus, 

 oblongo-lanrcolalis, compressis, lO-l i-floris 5 squamis arcte in- 

 cumbcntibus, ovatis, mucronulatis, carina tricostata, lateribus 

 ex luteo pallcsccntibus ; staminibus 3; stylo trifido; caryopsi 

 ovali, tri:;ona; involucellis '2-3-pbylli.s, lincaribus, ciliatis ; invo- 

 lucro bexapliyllo, umbella longiorc ; foliolis foliisque elongatis, 

 latiusculis, planis, margine carinaquc scaberrimis, glaucis ; culnio 

 triquefro, lacvi. Nees. — India orientalis. — Siniilis C. vegeto, 

 tlilVert colore pallide glauco, spiculis minoribus, c canescente lu- 

 teis, magis compressis , bifariam patentibus et veluti ilabella 

 parva in apicibus radiolorum exliibcntibus, siaminibus 3. (Nees 

 ab Esenb.) Nonnisi auctoritate Neesiana buc relatus. 



112. C. ROBUSTUS. Culmo triquetro, sulcato, glabro; foliis 

 culmo brcvioribus, planis, margine scabriusculis, subtus sulcatis, 

 rigidis ; umbella simplici, pluriradiata; involucro su])triphyIIo, 

 elongato ; capitulis subglobosis ; spicis dcnsis, oblongo-linearibus, 

 compressis, 30-32-floris ; squamis carinato-navicularibus, acutis, 

 trinerviis, viridibus, carina apicem versus sacpe spinuloso-dcnti- 

 culaiis; stamine 1; stylo tripartito; acbenio oblongo, Iiinc plano, 

 inde convcxo -angulato , mucronato, uigrescenti-fusco, squama 

 i- breviore. — Brasilia. 2\. — Culmus 5-0-pedaIis. Rbacheola 

 spicac ilcxuosa, glabra, aptera, S(piamae ovatae, basini versus 

 dorso planae, viridcs vcl fusccscenti-virides, deciduae. Filamcn- 

 tum 1, pcrsisteus, hyalino-fuscescens. Stylus tripariitus, albidus. 

 Achenium subtiliter punctulato-scabratum, margaritacco-nitens. 



113. C. RUFUS Ilumb. et Kunih. Nov. Gen. 1. 210. Culmo 

 triqueiro, angulis scabi-o; foliis culmo brevioribus, subcarinatis, mar- 

 gine scabris; umbclla dccomposita, deccmradiata ; capiiulis sub- 

 globosis, polystachyis ; involucro subociophyllo, umbclla triplo 

 longiorc; spicis oblongis, compressis, 12-14-floris; squamis cari- 

 iiaio -navicularibus, acuiis, obsoleie trinerviis, rufo- ferrugineis ; 

 siaminc 1; achenio siipitaio, oblongo, triangulari, mucronato, 

 fusco, squama dimidio breviore. C. ubertus iVilld. herh. nJ ioSS. 

 SchuU. Manl. 2. 131 in adnaf. — Nova Granaia. 7\. — Rha- 

 cheola spicae flexuosa, apiera, glabra. Squamae elliptico-ova- 

 tae, carina basim versus planac, subcoriaceae, glabrae, dcciduae. 

 Fiiamcnium persisiens, hyalinum. Stylus irifidus. Achcnium 

 punciulato-scabriusculum, opacum. (Descript. juxfa frustulum 

 herb. Willd.) An poiius idcm ac subsequcns? 



114. C. FORIMOSUS Vahl. Enuni. 2. 327 et herh. Culmo tri- 

 angulari: foliis lincaribus; umbclla composiia, sublO-radiaia; in- 

 volucro 5-6-phyIlo, longissimo, marginc scabro; spicis capitaio- 

 eongestis , oblongis, comprcssis, 20-33-floris; squamis carinaio- 

 navicularibus, acutis, trinerviis, apicem versus carina spinuloso- 

 denticulatis, fuscis ; achenio oblongo, trigono, mucronaio, fusco, 

 iiilente, squama fcre dimidio breviorc. — Louisiana, Caribaeae. 

 — Spicae duplo majores quam in C. surinamensi. Rhachcola 

 flcxuosa, aptera, glabra. Squamac naviculari-carinafac, carina ba- 



