24 



CYPEREAE- Cyperus. 



rotunda triangular! gluma vix breviore. (•) Sibiria ' 

 altaica. • 



246. C. ELEUSINOIDES. Wall, (ex Eunlh En. 11.39.) 



Culmo triangulari glabro basi foliato ; foliis planis rigidia 

 apicem versus margine scabris ; involucro sub-5-phyllo 

 longissimo ; umbella coniposita sub-7-radiata, radiis partia- 

 libus circiter 7 undique spicis oblongis compressis 8 — 10- 

 floris dense obsitis, spicas referentibus compositas cylindra- 

 ceas ; squamis ovato ellipticis sub apice mucronulatis 

 carinato-navicularibus 7-nerviis fuscescentibus dorso fusco- 

 lineolatis; stylo longissiino ; achenio • obovato-oblongo tri- 

 angulari apicato fusco puncticnlato scabriusculo subopaco 

 squama l / 3 breviore. Ind. or. 



$. 7. Lusoloideae. Spicae mvltiflorae conipressae capitato- 

 confertae, capitvlis wmbeUati* ; squamae approximatae 

 arntae 0- rarisrime obsolete 7 — 9-nerviae; stamen (ple- 

 rutnque) unicum. 



247. C.IXCOMPTUS. Kunth. (1. c. 39.) Caespitosus; 

 culmis triangularibus gracilibus Cl'/j— 2-pedalibus) glabris 

 basi foliatis ; foliis eulmo brevioribus anguste linearibu.% 

 planis margine scabris ; involucro 3— 4-phylIo longissimo ; 

 spicis 15—17 in apice culmi fasciculato congestis liueari- 

 bvis compressis multi- (usque 25 — 30-)fioris; squamis ap- 

 proximatis late ovatis acuto-submucronatis carinato-navi- 

 cularibus obsolete 7 — 9-nerviis lutescentibus; achenio ovato- 

 subrotundo acuminato mucrcnato 3-angulari impresso- 

 punctulato ferrugineo squama 7s breriore. _J Brasil. 



248. C. ORYZETORUM. Sleud. Radice fibrosa; culmo 

 compresso-triquetro 1 — lV^-pedali) glabro fiaccidulo; foliis 

 planis angustis glabris culmo brevioribus ; involucro di- 

 phyllo multo longiore umbella simplici sub-6-radiata, radiis 

 inaequalibus apice spiculiferis ; spiculis numerosis in capi- 

 tula compressa ovato-orbicularia laxiuscula congestis rectis 

 vel arcuatis linearibus obtusis multi- (20 — 30-) floris ; squa- 

 mis laxe imbricatis , ovato-rctundatis semigloboso concavis 

 obtusissimis minutissime (sub lente validissima) suberoso- 

 denticulat.'s , carina pallide rufescente lateribus subhyalinis 

 membranaceis pallidis enerviis; rhacheola tenuissimealata; 

 achenio triquetro ovato tenuissime papilloso-punctulato, 

 brevissime apiculato pallide stramineo. Cyperas an nova 

 species'.' Hrbr. cauc. un. it. 1838. In oryzetis prope 

 Lenkoran. 



249. C. YEGETUS. Willd. (Spec. I. 283.) Glauco- 

 viridis; culmo acute trigono (l'/s-pedali) interne folioso ; 

 foliis culmo brevioribus lineari-lanceolatis carinatis mar- 

 gine serrulato-scabris ; involucri 5 — 7-phylli foliolis pluri- 

 bus lougioribus umbella simplici composita vel decomposita 

 8 — 12-radiata; capitulis polystachyis magnis subglobosis; 

 spicis Ianceolato- linearibus compressis multi- (20 — 40-) 

 floris ; squamis ovatis carinato-navicularibus acutis triner- 

 viis viridibus demum lutescentibus et fuscescentibus; carina 

 versus apicem interdum spinuloso-denticulata ; achenio ob- 

 ovato triangulari mucronato nigro-castaneo squama 2 — 3- 

 plo breviore. C. compressus Jacq. Yind. 3. t. 12. '!(. Am. 

 austr. 



249*>- C. PSEUDOVEGETUS. Steud. Radice fibrosa; 

 culmo tenui triquetro striato glabro laevi (subpedali) , iu- 

 ferne foliato; foliis linearibus angustis ('/'■;'") culmum ae- 

 quantibus vel brevioribus Iaevibus ; involucri foliolis 4 — b' 

 inaequalibus umbella multo lougioribus vel earn aequanti- 

 bus, culmeis similibus; umbella pluriradiata , plus minus 

 composita; radiis valde inaequalibus apice simplicibus vel 

 iterum umbellulatis , spiculis in capitula coarctatis 4 — 8, 

 subpinnatis compressis ; squamis carinatis obscure 3-nerviis, 

 flavido- et viridi-variis ; achenio — ? M. Curtis legit in 

 Carolina australi 



250. C. DISTINCTUS. Steud. Culmo obtuse triangu- 

 lari ad angulos laevi (2 — 4-pedali) ; foliis linearibus (4'" 

 latis) sursum margine scabris; involucro 4-phyllo multo 

 longiore umbella composita sub-5-radiata ; radiis inaequa- 



libus (usque 2 — 3-pollicaribus) apice capituliferis ; umbel - 

 lula bracteis brevibus involucrata, ex 10 — 15 spiculis com- 

 posita, dense globosa ; spiculis ovatis compressis 9 — lb' 

 flo is squamis oblongis acutis subiucurvatis arete imbricatis; 

 achenio lanceolato longe acuminato-attenuato , basi sub 

 bulboso tumidulo. C. vegetus Torr. Ann. N. York. 275. 

 teste ipso autore et descriptione a praecedente nr. 249 

 diversus. "1\ Carolina. Florida. Georgia. 



251. C. GOERINGII. Sleud. Culmo compresso tri- 

 angulari (lV^-pedali) glabro; foliis planis linearibus glabris 

 versus apicem margine scabris; involucro diphyllo longiore 

 umbella simplici pluri- (8-) radiata ; radiis inaequalibus; 

 spiculis numerosis in capitula densa lobulata congestis 

 rectis abbreviates 8 — 10-floris ; squamis dense imbricatis 

 naviculari-concavis obtusissimis vix hinc inde brevissime 

 mucronulatis vel denticulatis ; carina i inerea , lateribus 

 subhyalino-membranaceis enerviis pallide albidis; achenio 

 acute triquetro ovato vix apiculato pallide stramineo laevi. 

 Hrbr. Goering nr. 402 et 150 sect. II. Java. 



252. C. VIRENS. Michx. (ex Torr. 1. c.) Culmo acute 

 triangulari (2 — 5-pedali) crasso firmo , angulis versus api- 

 cem serrulatis; foliis culmum fere aequantibus (4 — 5'" la- 

 tis) carina et margine scabris ; involucro polyphyllo 6 — 8- 

 plo longiore umbella composita; involucellis subaequantibus 

 spiculas ovatas vel ovato-lanceolatas compressas 12—20- 

 floras in capitulum densum globosum coarctatas ; squamis 

 oblongo-lanceolatis carinatis viridescentibus, acutis; ache- 

 nio oblongo triquetro utrinque acuto flavescente. i|. Am. 

 sptr. 



253. C. RUFESCENS. Torr. Hook. (1. c. 436.) Rbiao- 

 mate tuberoso ; culmo obtuse triangulo gracili (18-polli- 

 cari) ; foliis angustissimis ; involucri subtriphylli foliolis 

 longioribus duplo superantibus uinbellam compositam 4 — 

 5-radiatam; spiculis 40 — 50 in capitulum densum sub- 

 globosum conglomeratis , ovatis compressis 12 — 16-floris; 

 squamis ovato-lanceolatis dense imbricatis acutis angustis; 

 achenio ovato-triquetro utrinque acuminato squama duplo 

 breviore. 2|. Texas. 



254. C. CYRTOI.EPIS. Hook. Torr. (1. c.) Culmis 

 caespitosis (pedalibus) gracilibus sulcatis ; foliis angustissi- 

 mis culmum subaequantibus; involucro 3 — 4-phyllo setaceo 

 multo longiore umbella 3 — 5-radiata; radiis inaequalibus 

 erectis apice capitulo denso subgloboso terminatis e spiculis 

 lato ovatis compressis 9 — 12-floris; flosculis distantibus; 

 squamis lanceolatis acutis recurvis et pateutibus enerviis 

 viridescentibus ; achenio oblongo utrinque acuto glabro ob- 

 tuso viridulo. 1\ Texas. 



255. C. DRUMMONDII. 1 Wr. Hook. (1. c. 437.) Culmo 

 gracillimo (3 — 4-pedali) triangulari, lateribus convexis; 

 angulis subalatis acutis scabris ; foliis linearibus (2 — 3'" 

 latis) culmo brevioribus; involucro diphyllo longiore umbella 

 simplici 5 — 6-radiata, radiis brevissimis terminatis capitulo 

 (fere pollicari) subgloboso composito ex 40 — 50 spiculis 

 compressis 20 — 30-floris , ovato-lanceolatis obtusis ; squa- 

 mis subcoriaceis lanceolatis adpressis apice vix pateutibus, 

 acutis ; achenio oblongo utrinque acuto lineolis papillosis 

 scabrato. Texas. 



256. C. ROBUSTUS. Kunth. (Cyper. 41.) Culmo tri- 

 quetro sulcato glabro (5 — b'-pedali) ; foliis culmo breviori- 

 bus planis margine scabriusculis subtus sulcatis rigidia? 

 involucro subtriphyllo elongato ; umbella simplici pluri- 

 radiata ; capitulis subglobosis ; spicis densis obloiigo-linea- 

 ribus compressis multi- (30- et ultra) floris ; squamis cari- 

 nato-navicularibus acutis 3-ncrviis viridibus, carina apicern 

 versus saepe spinuloso-denticulata; achenio oblongo hinc 

 piano inde convexo-angulato mucronato nigrescenti-fusco 

 punctulato scabrato margaritaceo-niteute , squama */j bre- 

 viore. 1J. Brasil. 



257. C. RUFUS. //. B. (N. gen. I. 210.) Culmo tri- 

 quetro angulis scabro sulcato (3— 6-pedali, digiti minoris 



