672 CYPERACEAE. 



GYPERUS. 



38. C. EREYIRADIATUS Liebm. 1. c. 26. f — Culmo basi tuberascente 2— 2'/ 3 -pedali tri- 

 gono glabro striato , basi foliato; foliis plerumque culmo brevioribus linearibus planis 

 carinatis nervosis 2— 2y 2 "' latis, margine, carina utrinque, nervis sublus scabris, vagi- 

 nis ore membranaceo truncato flaccis; umbella 8— 9-radiata, radiis 2 — 4 exteriorihus 

 erecto-patulis lV a — 1— y 2 -pollicaribus, reliquis sessilibus apice poly- (28— 24-)stachyis; 

 involucro longissimo 8— 9-phyllo, phyllis usque pedalibus patulis planis carinalis ner- 

 vosis, margine, carina nervis scabris : ocbreis brevibus compressis, ore oblique trun- 

 catis ; spiculis in spicas velut truncatas 8—10'" longas, pollicem et insuper lntas con- 

 gestis divergentibus, demum reflexis gracilibus comprcssis 8'" longis 8— 9-floris, basi 

 bractea setacea suffultis; squamis remotiusculis parum squarrosis compresso-navicu- 

 laribus elliptico - oblongis obtusis, infra apicem obtuse mucronulatis obsolele 7 — 9- 

 ncrviis, carina viridi, lateribus pallide fuscis ferrugineo-lineolatis, uliima squama ta- 

 bescente neutra, infima minore vacua; slaminibus 2, antheris oblongis fuscis, filamen-' 

 tis byalinis; caryopsi elongata 1'" longa trigona apiculala , dorso convexa , lateribus 

 duabus plauis, flavo-fusca granulato -asperata, squama l / 3 breviore , stylo ad medium 

 trifido ; rhacheola flexuosa hyalino - alata. — Habitat in Mexico (Potrero de Conso- 

 quitla). 



39.. C. ALPINUS Liebm. 1. c. p. 27. f — Rhizomate repente stolonifero; culmis caespitosis 

 subpedalibus compresso - triquetris glabris striatis, basi foliatis ; foliis culmum sub- 

 aequantibus longioribusve planis linearibus nervosis , carina marginibusque scabris; 

 foliis novellis brcvibus planis ensiformibus ; umbella 5— 8-radiaia. radiis inaequalibns 

 patulis, inlermediis sessilibus, exterioribus 2—4 poll. longis apice poly- (15 — 28-) sta- 

 chyis ; involucro 6 — 7 - phyllo umbellam superante , phyllis lale linearibus 2%"' latis 

 planis carinatis nervosis, marginibus, carina utrinque, nervis supra scabris; ochreis 

 truncatis; spiculis in spicas compositas oblongo - cylindricas 'A — 1 - pollicares dense 

 congestis, patentissimis snbulatis compressiusculis 3— i'" longis 4-floris, basi bractea 

 subulata suffultis ; squamis oblongis obtusis carinato - navicularibus 11 — 13 - nerviis, 

 infra apiccm brevissime mucronulatis, carina viridi-fusca, lateribus fuscis aurantiaco- 

 punctulntis lineolalisvc , marginibus subhyalinis; squamis infimis 2 minoribus vacuis; 

 slaminibus 3, Hlamentis persisleniibus planis membronaceis; anlheris oblongis, polline 

 tetraedro; caryopsi elliplico - oblonga irigona apiculata minutissime granulata fusca, 

 squnma l /»— 'A brcviore ; stylo profundissime trifido exserto; rhachcola llcxuosa alter- 

 nnlim bialata, nlis hyalino-viridibus squnmae adnalis et cum illa solubilibus. — Habilal 

 in monlibus aliissimis (Cordilleris) Mexicanis (Puebla). 



40. C. CAMPHORATUS Liebm. 1. c. p. 28; f — Rhizomate bulbo - tuberoso rotundato- 

 ovalo. magnitudine nncis Avellanae, vaginis fissis fuscis tunicato; culmo V-f^—ri- rarius 

 2-pedali triquetro glabro striato , basi foliato; foliis 3 — 4 culmo brevioribus condupli- 

 catis cnrinalis, margine et carina scabris coriaceis; umbclla sub-fi-radiata, radiis inae- 

 qualibus, longioribus l l />— 2- rarius 3— 4-pollicaribus, inlcrmediis sessilibus, apice fas- 

 ciculato-spiculatis poly- (30—45-) stachyis; ochreis compressis apicatis; involucro 5 — 6- 

 phyllo, phyllis rnferioribus umbcllam 2 — 3-plo superantibus, superioribus aequanlibus; 

 spiculis basi bractea setacea ciliata '/,-pollicaii sulfultis palulis linearibus compressius- 

 culis 6—8'" longis laxifloris sub-10- floris; squamis patulis remotiusculis oblongis na- 

 viculari-compressis oblusis, infra apicem obsolcte mucronulalis 9-nerviis fuscis, mar- 

 ginibus mcmbranaceis, squamis inferioribus minoribus vacuis; staminibus 3, Blamentis 

 longissimis membranaceis; caryopsi elongata trigona apiculala castanea minulissime 

 granulata, dorso convexo, lateribus duobus planis, squama duplo breviore; stylo caryop- 

 sin aequante, sligmatibus 3 longissimis ; rbacheola alternatim compressa hyalino-alata. 

 — In Mexico (Potrero de Consoquilla). 



41. C. TRICEPS N. abE. Linnaea XIX. 697. — Liebm. 1. c. 29. f - Rbizoma repens slolo- 

 niferum; culmus tenuis 2'A-pedalis triqueter, angulis scaberrimus (vix relrorsum sca- 

 berrimus) striatus basi foliatus ; folia culmo breviora angusie linearia carinala , pagina 



