56 



CYPEREAE. Cypems. 



minoribus vacuis ; caryopsi elliptica trigona apiculata gra- 

 nulata fusca dorso convexa, lateribus subplanis vel leviter 

 concavis, squama breviore; rhacheola flexuosa alterna- 

 tim bialata, alis hyalinis conniventibus caryopsin ample- 

 ctentibus. Oaxaca. 



636. C. SERTULARINUS. Lieha. (1. c. 25,) Rhizo- 

 mate crasso stolonifero; culmo 2^2 — 3-pedali, basi foliato 

 (digitum minimura, sursum pennam anserinam crasso) tri- 

 quetro glabro striato ; foliis culmo brevioribus 5'" latis, 

 plicato-nervosis, supra glabris subtus ad nervos carinam et 

 margines scabris ; vaginis purpurascentibus glabris, umbella 

 decomposita 10-radiata, radiis inaequalibus, interioribus 

 5 sessilibus, exterioribus 2 — 6-pollicaribus erecto-patulis, 

 umbellulis 3 — 5-radiatis, radiis sessilibus divaricatis termi- 

 nali 2, lateralibus 1 — 1 V3" longis polystachyis ; involucro 

 10-phyllo, foliolis umbellam superantibus ; involucelhs 3 — 

 5-phylUs reflexis umbellula brevioribus; spicuHs numerosis- 

 simis in spicam elongatam cyhndricam dense congestis di- 

 vergentibus demum divaricatis facile deciduis V2 -poHicari- 

 bus compressis iinearibus utrinque acutis 7 — 8-floris , basi 

 bractea acuta sutfultis ; squamis imbricatis subsquarrosis 

 carinato-navicularibus oblongis , infra apicem brevissime 

 mucronatis, obsolete nervosis, carina fusco-viridi , lateribus 

 fuscis margine hyalinis ; caryopsi squama duplo breviore 

 elhptica apiculata trigona dorso convexa lateribus planis, 

 castaneo nitida subtilissime granulata ; rhachi universali 

 tuberculata, ihacheolis hyalino alatis. Nicaragua. 



637. C. AMPHEKES. {Steud.) Ehizomate obliquo 

 tuberascente crasso fibris longis validis instructo ; culmo 

 pedali triquetro striato glabro basi foliato ; foliis culmum 

 aequantibus rigidiusculis carinatis margiue sursum scabris; 

 vaginis 2 — 3" longis basi rubescentibus , ore membranaceo 

 laxo truncatis ; umbella simplici 8 — 10-radiata, radiis ex- 

 terioribus iVa^ — 5"longis, intermediis sessilibus apice poly- 

 (22 — 28-) stachyis; involucro 5 — 7-phyllo longissimo (6 — 

 8-pollicari) ; spiculis in spicam poUicarem laxe congestis 

 patentissimis demum divaricatis compressis ancipitibus U- 

 nearibus 5 — 6"' longis 5-fioris, basi bractea setacea parva 

 suffultis; squamis oblongis compressis, infra apicem brevis- 

 sime mucronatis 7 — 9-nerviis, carina viridi, lateribus ferru- 

 gineis ; caryopsi lineari-elliptica trigona apiculata fusca 

 subtilissime punctulata squama V3 breviore, rhacheola fle- 

 xuosa hyalino alata. C. anceps Liehm. I. c. non Steud. 

 Cuba. 



638. C. BREVIRADIATUS. Lielm. (1. c. 26.) Culmo 

 basi tuberascente (2 — ^V^-pedali), trigono glabro striato 

 basi foliato ; foliis plerumque culmo brevioribus linearibus 



< planis carinat s nervosis (2 — 2V2'" latis) margine carina 

 nervisque subtus scabris; vaginis ore membranaceo truncato 

 flavis, umbella 8 — 9-radiata, radiis inaequalibus sessilibus 

 usque 1 Vs-pollicaribus apice poly- (24 — 28-) stachyis ; in- 

 volucro longissimo 8 — 9-phyIIo, fohis patulis usque peda- 

 Ubus ; spiculis in spicas relatis truncatas 8 — 10"' longas, 

 1" et ultra latas congestis divergentibus , demum reflexis 

 gracilibus conipressis 8"' longis 8 — 9-floris , basi bractea 

 setacea suffultis ; squamis remotiusculis subsquarrosis com- 

 presso-uavicularibus elliptico-oblongis obtusis, infra apicem 

 obtuse mucronulatis obsolete 7 — 9-nerviis , carina viridi, 

 lateribus paUide fuscis ferrugineo-lineolatis , caryopsi elon- 

 gata (1"' longa) trigona apiculata dorso convexa, lateribus 

 planis , fl vo-fusca granulato-asperata squama Vs breviore, 

 rhacheola flexuosa hyalino alata. Mexico. 



639. C. ALPINUS. Liehm. (I. c. 27.) Rhizomate re- 

 pente stolonifero ; culmis caespitosis compresso-triquetris 

 glabris striatis (subpedalibus) , basi foliatis ; foUis culmum 

 subaequantibus vel superantibus planis ensiformibus ; um- 

 bella 3 — 8-radiata, radiis inaequalibus patulis praeter inter- 

 medios sessiles 2 — 4" longis apice poIy-(15 — 28-)stachyis; 

 involucro 6 — 7-phyIIo umbeUam superante, foliolis late li- 

 nearibus (2^^"') planis carinatis nervosis; spicuiis in spicas 



compositas oblongo-cylindricas V2 — l-poUicares dense con- 

 gestis, patentissimis subalatis compressiusculis 3 — 4'" lon- 

 gis 4-floris, basi bractea Uueari suftultis; squamis oblongis 

 obtusis carinato-navicularibus 11 — 13-nerviis, infra apicem 

 brevissime mucronulatis, carina viridi-fusca, lateribus fuscis 

 aurantiaco punctulatis vel lineolatis, marginibus subhyali- 

 nis; caryopsi elliptico-oblonga trigona apiculataminutissime 

 granulata fusca squama V* — V3 breviore; stylo profundis- 

 sime trifido; rhacheola flexuosa alternatim bialata. Mexico. 



640. C. CAMPHORATUS. Liebm. (!. c. 28.) Rhizo- 

 mate bulboso-tuberoso rotundato-ovato vaginis fissis fuscis 

 tunicato; culmo triquetro glabro striato (1 — usque 2-pedaIi) 

 basi foliato; foliis culmo brevioribus conduplicatis carinatis 

 margine et carina scabris coriaceis, umbella sub-6-radiata, 

 radiis inaequalibus sessilibus usque 2- quin 3 — 4-polIicari- 

 bus, apice fasciculato-spiculatis poly- (30 — 45-) stachyis ; 

 involucro 5 — 6-phyIIo foliolis umbellam partim aequantibus, 

 partim 2 — 3-pIo superantibus ; spiculis basi bractea setacea 

 ciliari suffultis patulis linearibus compressiusculis 6 — 8"' 

 longis laxi-sub-lO-floris; squamis patulis remotiusculis ob- 

 longis naviculari-compressis obtusis, infra apicem obsolete 

 mucronulatis 9-nerviis fuscis, margine membranaceis ; ca- 

 ryopsi trigona apiculala castanea minutissime granulata, 

 dorso convexo lateribus planis , squama duplo breviore ; 

 rhacheola hyalino alata, Mexico. 



641. C. ASPERRIMUS. Liebm. (1. c. ^.SO.) Rhizo- 

 mate repente stolonifero; culmo folijsque undique pilis bre- 

 vibus fragilibus hyalinis scabridis; culmo triquetro striato 

 basi 5 — 6-foIiato; foliis culmum subaequantibus vel plerum- 

 que brevioribus rigidis carinatis striatis planis (1 V2'" latis) ; 

 umbella simplici 3 — 5-radiata, radiis sessilibus divergenti- 

 bus dense spicatis polystachyis; spicis compositis Vz-po^li- 

 caribus, intermedia majore oblongo-cylindrica, lateralibus 

 minoribus ; involucro 3 — 5-phyIIo, foliolis inaequalibus (usque 

 2-polIicaribus) ; spiculis patentissimis vel divaricatis elon- 

 gatis compressiusculis laxi — 5-floris, bractea subulata suf- 

 fultis ; squamis patulis late-ovatis carinato-navicularibus 

 obtusis infra apicem breviter mucronatis , mucrone apice 

 spinuloso-ciliato, 7 — 9-nerviis, carina viridi dorso ciliolata, 

 lateribus fusco castaneis, margine lato stramineo-flavescen- 

 tibus; caryopsi elongato-obovata trigona apice subtilissimie 

 puuctulato - nitida , pallide helvola squama Vs breviore ; 

 rhacheola flexuosa angustissime alata. Variat: inflore- 

 scentia subcapitata e spicis composit:s 3 — 4 capituliformi- 

 bus congesta, radium unum alterumve 1 — 2-poIIicarem 

 apice capitato-polystachyum emittente. Mexico. 



642. C. DIPSACEUS. Liebm. (I. c. 31.) Rhizomate 

 stolonifero; culmo trigono glabro striato (2^2 — 3-pedaIi) 

 basi foliato ; foUis culmo brevioribus anguste linearibus 

 complicatis carinatis sursum carina margineque scabris ; 

 inflorescentia aut capitato-congesta e capitulis 3 — 4 sub- 

 sphaericis (magnitudine Cerasi) polystachyis conferta, aut 

 umbella 5-radiata, radiis 2 intermediis sessilibus subcon- 

 fluentibus subsphaerico-capitatis, 3 exterioribus divaricatis 

 inaequalibus 1 — 2" longis apice capitato-polystachyis ; in- 

 volucro 5 — 6-phyllo , fcliolis deflexis inaequilongis usque 

 6 — 8-poIIicaribus; spiculis densissime confertis, inferioribus 

 bractea setacea scabia spiculam superante suffultis , com- 

 pressiusculis 5 — 6-floris patentissimis demum deflexis ; 

 squamis patulis late ovatis obtusis carinato-navicularibus 

 infra apicem longe mucronatis, mucrone denticulato parum 

 recurvo quartam squamae partem aequante, 9 — 11-nerviis, 

 carina viridibus lateribus castaneo fuscis , margine palli- 

 dioribus; caryopsi obovato trigona obtusa apiculata sub- 

 tilissime granulata squama vix V^ breviore nigricante nitida: 

 rhacheola flexuosa hyalino alata. Mexico. 



Species ad Diclidium Nees (cfr. supra p. 45. §. 16) pertinentes. 



641. C. MACROCEPHALUS. Liebm. (\.c. 33.) Rhi- 

 zomate crasso repente stolonifero; culmo triquetro glabro 



