CYPEREAE. Cyperus. 



55 



linearibus obtusis spicato-capitatis ; capitulis pedunculatis 

 reflexis. Mexico. 



626. C. SORDIDUS. Presl. (1. c.) Culmo obtuse tri- 

 gono ; glaucescente erecto (1 Yo-pedali) ; vaginis infimis 

 ovato-lanceolatis acutis aphyllis margine membranaceis ; 

 foliis angustis glaucis margine serrulato-scabris culmum 

 aequantibus; involucro 4-pbyllo longissimo; foliolis culmeis 

 conformibus usque 15-decies longioribus ; umbella 5 — 7- 

 radiata; spiculis oblongo-lanceolatis 12-floris in capitulum 

 ovato-oblongum dense conglomeratis; squamis ovatis acutis 

 multinerviis , achenio oblongo triquetro, utrinque acuto 

 nigricante minutissime punctulato. 1|. California. 



627. C. TENUICULUS. Kunth. {Presl. 1. c. sub : 

 tenellus.) Radice longe flbrosa , caespitifera ; cuhno tri- 

 quetro (3 — 6-poIlicari), basi monophyllo ; foliis culmeis 

 angustissimis culmo brevioribus, fasciculorum ejus longitu- 

 dine , omnibus molUbus glaberrimis ; involucro triphyllo 

 umbella sub-4-radiata longiore ; radiis subtristachyis ; spi- 

 culis linearibus l6-floris ; glumis rotundato-ovatis obtusis- 

 simis mucronulatis 3-nerviis dorso fuscescentibus, lateribus 

 albidis, fructiferis apice distantibus; achenio oblongo com- 

 pressiusculo apiculato nigricate punctulato. (•) California. 



628. C. SPICIGERUS. Vahl. (En. 2. 300.) Culmo 

 aphyllo (lYs-pedali) tereti; involucri 6-phyIli foliolo unico 

 ovato acuminuto , reliquis subulatis multoties brevioribus 

 umbella simpHci 9-radiata; spiculis numerosis confertis 

 in spicam fere pollicarem, subulatis 4-floris parvis ; squamis 

 angustis margine membranaceis fusco-virescentibus. (Ob- 

 scura delenda species Kunth.) Brasil. 



629. C. PES AVIUM. Bertol. (Misc. bot. VIII. t.3. f. 1.) 

 Culmo tereti striato inferne vaginato subaphyllo ; umbella 

 decomposita inaequaliter multiradiata ochreata; involucro 

 diphyllo ; spiculis exiquis 8-floris digitato-subquaternis ; 

 squamis oblongis obtusis retusis , lateralibus sanguineo- 

 rubellis. Alabama. 



630. C. GLAREOSUS. Liebm. (Mexic. Halvgras. p. 16.) 

 Radice fibrosa ; culmis caespitosis trigonis glabris striatis 

 2 — 4-poIIicaribus basi foliatis; foliis 1 — 2 culmum sub- 

 aequantibus setaceo linearibus complicatis sursum margine 

 scabris ; vaginis subpollicaribus ore obliquis umbella com- 

 posita vel decomposita 6 — 16-radiata, radiis inaequalibus, 

 longioribus 1 — 2-polIicaribus, uno intermedio sessili, apice 

 6 — 12-stachyis vel nonnunquam umbellulam 3 — 5-radiatam 

 gerentibus, radiis patentissimis Vs — '/3" longis intermediis 

 2 — 3 sessilibus, apice 5 — 8-stachyis; ochreis oblique trun- 

 catis, ochreolis in laminam setaceam abeuntibus; involucro 

 6 — 10-phyIIo , foliolis inaequalibus , longioribus umbella 

 duplo longioribus 3 — 6" longis, setaceis canahculatis mar- 

 gine scabris; involucellis 1 — 3-phyIIis setaceis umbellula 

 brevioribus ; spiculis fasciculato congestis diver^entibus 

 linearibus compressis Vz" longis 10 — 20-floris; squamis 

 carinato concavis elongatis emarginatis trinerviis , nervis 

 infra apicem in mucronem leviter recurvum sub lente bi- 

 fidum quartam squamae partem longum abeuntibus, carina 

 viridi, lateribus basin versus obscure aurantiacis, margine et 

 apice flavescentibus ; caryopsi obovato-oblonga apiculata 

 trigona tuberculato-punctulata pallide fusca vel flavescente, 

 squama triplo breviore ; rhacheola flexuosa compressa an- 

 guste hyalino-alata. Mexico. 



631. C.FALCICULOSUS. Liehm.{\.c.) Radice fibrosa; 

 culmis caespitosis 2 — 3-poIIicaribus compresso-triquetris 

 glabris striatis basi monophyllis; foliis culmo subaequalibus 

 vel brevioribus anguste linearibus planis carinatis glabris ; 

 umbella capitata 1 — 3-radiata, radiis inaequalibus Y2 — 1- 

 pollicaribus , intermedio sessili, apice polystachyis sub- 

 sphaericis (magnitudine baccae Rubes nigri) ; involucro 

 2 — 3-phyllo umbellam superante , foliolis inaequalibus 

 (Y2 — 2-poIIicaribus) linearibus planis glabris ; ochreis bre- 

 vibus truncatis; spicuhs 16 — 25 fasciculate-capitatis an- 

 guste linearibus compressis 3'" longis squarrosis 12 — 18- 



floris ; squamis elongato-lanceolatis acuminato-mucronatis 

 subuncinatis carinatis 7-nerviis , mucrone longitudine fere 

 squamae , carina fusca , lateribus flavo fuscis margine pal- 

 lidioribus ; caryopsi elonp-ato-obovata trigona apiculato- 

 tuberculato-punctulata fusca squama (excepto mucrone) 

 parum breviore ; rhacheola recta. Vera Crux. 



632. C. CYMBAEFORMIS. Liehm. (I. c. 20.) Radice 

 fibrosa ; rhizomate brevissimo ; culmo striato erecto com- 

 presso trigono glabro (6 — 7-polIicari) basi foliato ; foliis 

 culmo brevioribus anguste linearibus apicem versus margine 

 scabris ; vaginis brevibus membranaceis ore rotundato- 

 truncatis; capitulo soIitario(magnitudineCerasiavium)poly- 

 (20 — 30-)stachyo; involucro7 — 8-phylIo longissimo, foliolis 

 patulo-reflexis, inferioribus 3 — 4-ponicaribus; spiculis den- 

 sissime congestis ovatis flavo-albicantibus 14 — 16-floris; 

 squamis patulis curvatis anguste cymbaeformibus compres- 

 sis apice truncato-retusis , lateribus utrinque bisulcatis 

 flavo albicantibus ; stamine uno ; caryopsi squama Y^ bre- 

 viore oblongo trigona acuta apiculata subtilissime granu- 

 lata atro-fusca ; rhacheola compresso 4-quetra flexuosa 

 angustissime alata. Granada Pitagaya. 



633. C. FULVESCEjSS. Liehm. (I. c. 22.) Rhizomate 

 repente stolonifero; culmo triquetro glabro striato (1 — IY2- 

 pedali) basi foliato ; foliis culmo brevioribus planis rigidis 

 sursum scabris ; umbella sub-7-radiata , radiis inaequalibus 

 sessiiibus usque Y2 — 3-pollicaribus ; involucro 5-phyIIo, 

 foliohs inferioribus umbella longioribus (3 — 4" longis) 

 planis carinatis sursum margine scabris ; spiculis patentis- 

 simis 6 — 9"' longis compressiusculis 16 — 25-floris , basi 

 bractea subulata suffultis ; squamis imbricatis carinato navi- 

 cularibus compressis ovatis obtusis brevissime mucronulatis 

 7 — 9-nerviis, carina fusco virente , lateribus fulvo-ferrugi- 

 neis, margine irregulariter repando-hyalino ; caryopsi squa- 

 ma duplo breviore elongata trigona apiculata glabra fusca; 

 stigmatibus longissime exsertis; rhacheola flexuosa hyalino- 

 alata, alis involutis caryopsin amplectentibus. Mexico. 



634. C. OBESUS. Liehm. (I. c. 23.) Caespitosus; cul- 

 mis trigonis striatis basi foliatis (IV2 — 2-pedaIibus) foliis 

 culmo duplo brevioribus erectis rigidulis anguste linearibus 

 setaceo-acutatis carinatis, apicem versus margine scabris; 

 vaginis bipollicaribus rubentibus glabris , umbella 5 — 8- 

 radiata , radiis inaequalibus , exterioribus 2-pcIIicaribus 

 patentissimis vel divaricatis , reliquis sessilibus ; involucro 

 5 — 8-phylIo , foliolo infimo 6 — 9" longo 2>"' lato plano 

 carinato , intimis angustissime linearibus vel subsetaceis ; 

 spicis elongato-cylindricis pollicaribus digitura crassis, basi 

 involucello 2 — 3-phyIIo , fcliolis setaceis reflexis ; spiculis 

 numerosissimis dense congestis patentissimis vel reflexis 

 ovato-Ianceolatis ccmpressiusculis 4 — 6-floris basi bractea 

 setacea spiculabreviore suftultis; squamis oblongis carinato- 

 navicularibus obtusis infra apicem minutissime mucronatis 

 11-nerviis, carina lata viridi , lateribus pallide fusco- 

 stramineis dense ferrugineo-lineolatis , squama infima mi- 

 nore vacua ; caryopsi ovata triquetra apiculata nitida 

 castanea subtilissime granulata, lateribus planis squama 

 dupla breviore, rhacheola hyalino-alata. Mexico. 



635. C. DISCIGERUS. Liehm. (1. c. 24.) Culmo tri- 

 gono glabro striato subpedali ; foliis culmo brevioribus 

 linearibus margine et carina scabris ; umbella 7 — 11- 

 radiata, radiis inaequalibus , exterioribus 1 Y^-po'!^^^'^^^^^ 

 patulis apice poly- (35— 50-) stachyis ; ochreis brevioribus 

 apiculatis ; involucro 7 — 9-phyIlo radiis multoties longiore, 

 foliolis patulis planis nervosis scabris (7 — 9"longis); spicis 

 oblongo-cylindricis; spiculis dense congestis divaricatis vel 

 reflexis hneari-lanceolatis compressiusculis 7 — 8-floris basi 

 bractea subulata suftultis , disco depresso cylindrico insi- 

 dentibus , mox deciduis , discis rhacheos persistentibus ; 

 squamis elongato-ovatis carinato-navicularibus compressis 

 9 — 11-nerviis, nervo carinali viridi in mucronem brevis- 

 simum excurrente, lateribus flavo-fuscis, squamis 2 infimis 



