56 



CYPEREAE. Cyperus, 



minoribus vacuis; caryopsi elliptica trigona apiculata gra- 

 nulata fusca dorso convexa, lateribus subplanis vel leviter 

 concavis, sqnama l j t breviore; rhacheola flexuosa alterna- 

 tim bialata, alis hyalinis conniventibus caryopsin ample- 

 ctentibus. Oaxaca. 



636. C. SERTULARINUS. Liebm. (1. c. 25.) Rhizo- 

 mato crasso stolonifero; culmo 2'/3— 3-pedali, basi foliato 

 (digitum minimum , sursum pennam anserinam crasso) tri- 

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

 plicato-nervosis, supra glabris subtus ad nervos carinain et 

 margines scabris ; vaginis purpurascentibus glabris, umbella 

 decomposita 10-radiata, radiis inaequalibus, interioribus 

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

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

 nali 2, lateralibus 1 — l 1 /," longis polystachyis ; involucro 

 10-phyllo, foliolis umbellam superantibus ; involucellis 3 — 

 5-phyllis reflexis umbellula brevioribus; spiculis numerosis- 

 simis in spicam elongatam cylindrieam dense congestis di- 

 vergentibus demum divaricatis facile deciduis '/» -pollicari- 

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

 bractea acuta suffultis ; squamis imbricatis subsquarrosis 

 carinato-navicularibus oblongis, infra apieem brevissime 

 mucronatis, obsolete nervosis, carina fusco-viridi, lateribus 

 fuscis margine hyalinis ; caryopsi squama duplo breviore 

 elliptica apiculata trigona dorso convexa lateribus planis, 

 castaneo nitida subtilissime granulata; rhaclii universali 

 tuberculata, ihacheolis hyalino alatis. Nicaragua. 



637. C. AMPHEKES. (Steud.) Rhizomate 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 truhcatis ; umbella simplici 8 — 10-Tadiata, radiis ex- 

 terioribus 1V 2 — o" longis, intermediis sessilibus apice poly- 

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

 8-polIicari); spiculis iu spicam pollicarem laxe congestis 

 pateutissimis demum divaricatis compressis ancipitibus li- 

 nearibus 5 — 6'" longis 3-tloris, basi bractea setacea parva 

 suffultis; squamis oblongis compressis, infra apieem brevis- 

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

 gineis ; caryopsi lineari- elliptica trigona apiculata fusca 

 subtilissime punctulata squama '/i breviore, rhacheola fle- 

 xuosa hyalino alata. C. anceps Liebm. 1. c. non Steud. 

 Cuba. 



638. C. I5REVIRADIATUS. Liebm. (1. c. 26.) Culmo 

 basi tuberascente (2— 2',', -pedali), trigono giabro striato 

 basi foliato : foliis plerumque culmo brevioribus linearibus 

 planis carinats nervosis (2—2 */»'" latis) margine carina 

 nervisque subtus scabris; vaginis OTe membranaceo truncato 

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

 usque 1 Vi-pollicaribus aj ice poly- (24— 28-) stachyis ; in- 

 volucro longissimo 8— 9-phyllo, foliis patulis usque peda- 

 libus; spiculis iu spicas relatis truncatas 8— 10'" longas, 

 1" ct ultra latas congestis divergentibus, demum reflexis 

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

 setacea suffultis ; squamis remotiusculis subsquarrosis com- 

 presso-navicularibus clliptico-cblongis obtusis, infra apieem 

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

 lateribus pallide fuscis ferrugineo-lineolatis, caryopsi elon- 

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

 planis, fl vo-fusca granulato-a>perata squama % breviore, 

 rhacheola flexuosa hyalino alata. Mexico 



639. C. ALPINUS. Liebm. (1. c. 27.) Rhizomate re- 

 pente stolonifero; culmis caespitosis compresso-triquetris 

 glabris stnatis (subpedalibus) , basi foliatis; foliis culmum 

 smbaequantibus vel superantibus planis ensiformibus ; um- 

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

 medios sessiles 2—4" longis apice poly-(15~28-)stachyi S ; 

 involucro 6-7-phyllo umbellam superante, foliolis late li- 

 neanbus {2^'") planis carinatis nervosis; spiculis in spicas 



compositas oblongo-cylindricas */s — 1-pollicares dense con- 

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

 gis 4-floris, basi bractea lineari suffultis; squamis oblongis 

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

 brevissime mucronulatis, carina viridi-fusca, lateribus fuscis 

 aurantiaco punctulatis vel lineolatis , marginibus subhyali- 

 nis; caryopsi elliptico-oblonga trigona apiculata minutissime 

 granulata fusca squama V* — 1 l\ breviore; stylo profundis- 

 sime trifido; rhacheola flexuosa alternatim bialata. Mexico. 



640. C. CAMPHORATUS. Liebm. (1. c. 28.) Rhizo- 

 mate bulboso-tuberoso rotundato-ovato vaginis fissis fuscis 

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

 basi foliato; foliis culmo brevioribus conduplicatis carinatis 

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

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

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

 involucro 5 — 6-phyllo foliolis umbellam partim aequantibus, 

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

 ciliari suffultis patulis linearibus compressiusculis 6 — 8'" 

 longis laxi-sub-10-floris; squamis patulis remotiusculis ob- 

 longis naviculari-compressis obtusis, infra apieem obsolete 

 mucronulatis 9-nerviis fuscis, margine membranaceis ; ca- 

 ryopsi trigona apiculata castanea minutissime granulata, 

 dorso convexo lateribus planis, squama duplo breviore; 

 rhacheola hyalino alata. Mexico. 



641. C.ASPERRIMUS. Liebm. (1. c. p. 30.) Rhizo- 

 mate repente stolonifero ; culmo foliisque undique pilis bre- 

 vibus fragilibus hyalinis scabridis; culmo triquetro striato 

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

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

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

 bus dense spicatis polystachyis; spicis compositis '/j-pc-M' 

 caribus, intermedia majore oblongo-cylindrica, lateralibus 

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

 2-pollicaribus) ; spiculis patentissimis vel divaricatis elon- 

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

 fultis; squamis patulis late-ovatis carinato-navicularibus 

 obtusis infra apieem 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 subtilissime 

 punctulato - nitida , pallide helvola squama V.? breviore; 

 rhacheola flexuosa angustissime alata. Variat: inflore- 

 scentia subcapitata e spicis compositis 3—4 capituliformi- 

 bus congesta,, Tadium unum alterumfe 1— 2-pollicarem 

 apice capitato-polystachyum emittente. Mexico. 



642. C. D1PSACEUS. Liebm. (1. c. 31.) Rhizomate 

 stolonifero; culmo trigono glabro striato (27 3 — 3-pedali) 

 basi foliato ; foliis culmo brevioribus anguste linearibus 

 complicatis carinatis sursum carina margineque scabris; 

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

 sphaericis (magnitudiue Cerasi) polystachyis conferta, aut 

 umbella 5-radiata, radiis 2 intermediis sessilibus subcon r 

 fluentibus subsphaerico-capitatis, 3 exterioribus divaricatis 

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

 volucro 5— 6-phyllo, foliolis deflexis inaequilongis usque 

 6 — 8-pollicaribus; spiculis densissime confertis, inferioribus 

 bractea setacea scabra spiculam superante suffultis , com- 

 pressiusculis 5 — 6-floris patentissimis demum deflexis; 

 squamis patulis late ovatis obtusis carinato-navicularibus 

 infra apieem longe mucronatis, mucrone denticulato paruui 

 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 Xees (cfr. supra p. 45. §. 16) pertinentes. 



641. C. MACROCEPHALUS. Liebm. (I.e. p. 33.) Rhi- 

 zomate crasso repente stolonifero; culmo triquetro glabro 



