10 



CYPEREAE. Cypems. 



subdistautibus alternis (supremis fasciculatis) lineari-lanceo- 

 latis 10 — 12-floris; squamis oblongo-lanceolatis acutis laxe 

 imbricatis submembranaceis pallide flavescentibus ; stami- 

 nibus 2 ; achenio oblongo-obovato obtuso ; rhachi angusta 

 margine squamulis confluentibus persistentibus undulata. 

 % Alabama. 



79. C. LOUISIANAE. Steud. Radice fibrosa subcaespi- 

 tifera ; cuhno gracili 3-angulari (3 — 5-pollicari) ; follis 

 linearibus planis carinatis angustis (vix V" latis) culmo 

 brevioribus ; involucri 3-phylli foholis omnibus longioribus 

 umbella composita ; radiis iuaequahbus 5 — 9, longioribus 

 vix ultra pollicaribus , spiculis in apice radiorum aiternis 

 vel suboppositis patentibus (semipollicaribus) lineari-lanceo- 

 latis 10 — 20-floris ; squamis laxiuscule imbricatis oblongo- 

 ovatis obtusiusculis apice minutissime apiculatis flavido 

 viridibus (sub lente valida pulcherrime aureo flavidis splen- 

 dentibus), parvis {^U'" longis) ; achenio oblonge subcylin- 

 drico tenuissime puncticulato nitidulo squama 7.3 breviore ; 

 rhachi angusta squamuloso-alata, squamuhs ipsis linearibus 

 flosculos subexcedentibus. (•) Louisiana. 



80. C. PUNCTICULATUS. Vahl. (En. 2. 348.) Culmo 

 triangulari procero (3-pedali, basi digiti minimi crassitie) ; 

 foliis rigidis carinato-planis margine ca;inaque scabris ; 

 umbella decomposita sub-8-radiata ampla diffusa, radiis 

 brachiato 3 — 5-fidis, radiolis polystachyis, spiculis spicatim 

 dispositis patentissimis subdistichis late linearibus 20 — 26- 

 floris , involucro 3-phyllo longissimo ; squamis subrotundo- 

 ellipticis sub apice rotundato emarginato breviter mucro- 

 natis carinatis , dorso 5-nerviis inter nervos ferrugineis, 

 carina viridi, lateribus hinc sanguineo-ferrugineis inde pal- 

 lide stramineis margine subundulatis ; staminibus 2 ; ache- 

 nio oblique subobcordato apicato lateribus compresso pun- 

 ctulato-scabro laete castaneo nitido squama dimidio breviore. 

 C. inundatus Roxh. C. Baccha Nees testo ipso. 1]. 

 Ind. or. 



81. C. ALBOMARGINATUS. Mart. Schrad. (Neesmm. 

 Cyper. Bras. p. 9. sub : Pycreus.) Radice fibrosa ; culmo 

 triquetro glabro (1 — 1 Vs-pedali), basi foliato ; foliis planis 

 linearibus acuminatis , culmum subaequantibus , superne 

 margino scabris ; umbella 7 — 9 radiata , radiis partialibus 

 2 — 3 brevibus ; involucro subhexaphyllo , foliolo extimo 

 umbella triplo, secundo duplo longiore, reliquis brevioribus; 

 spiculis plurimis lineari-Ianceolatis 11 — 13-floris ; squamis 

 obovatis obtusis 5-nerviis sub apice mucronulatis , carina 

 viridi , lateribus latescenti brunneis margine subdiaphano 

 albo tenuiore cinctis; achenio obovato compresso punctato- 

 scabro, nigro. Ij. Bahia. 



82. C. SABULOSUS. Mart. Schrad. (Nees 1. c. sub : 

 Pycreus.) Radice fibrosa ; culmis caespitosis triquetris 

 glabris (7^ — 1-pedalibus) , infra medium foliatis ; foliis 

 linearibus carinatis margine scabris culmum superantibus ; 

 umbella 8 — 10-radiata , radiis partialibus 5 — 9 ; involucri 

 foholis (numero radiorum) 3 — 4 umbella2 — 3-plo longiori- 

 bus, reliquis sensim minoribus; spiculis (25 — 30) lanceolato- 

 linearibus 15 — l7-floris ; squamis oblongo-obovatis 5- 

 nerviis , carina viridi , lateribus lutoscenti-brunneis versus 

 apicem albido-marginatis ; achenio obovato compresso 

 punctato-scabro nitido fusco. Brasil. 



83. C. TREMULUS. Poir. (Enc. 7. 264.) Culmis tri- 

 angularibus glabris (3 — 4-pedalibus) ; foliis planis latius- 

 culis margine asperis ; umbella supradecomposita ampla 

 sub-12-radiata, radiis valde inaequalibus, umbellulis 6 — 8- 

 radiatis, radiolis polystachyis ; involucro 6 — 8-phyIIo longis- 

 simo plano margine aspero ; involucellis 3 — 4-phyllis um- 

 bellulas aequantibus; spiculis bracteola setuliformi sufl\iltis 

 lanceolatis acutis compressis 7 — 13-floris ; squamis remo- 

 tiusculis obovatis emarginatis muticis carinatis 5-nerviis 

 fuscescenti-stramineis superne ad marginem hyalino albidis 

 et subundulatis ; staminibus 2 — 3 ; achenio obovato-oblongo 



lateribus compresso mucronato puuctulato laete castaneo 

 nitidulo squama 7^ breviore. Madagasc. Maurit. 



84. C. TORTUOSUS. Koeni^. {Roxb. Fl. ind. 1. 201.) 



Radice subtuberosa fibris filiformibus ; culmis erectis nudis 

 obtuse triangularibus (6 — 8-poIlicaribus) ; foliis radicalibus, 

 culmo brevioribus ; umbellis compositis longitudine involucri 

 triphylli, radiis 4 — 8 inaequalibus ; spiculis magnis lineari- 

 bus incurvis multifloris castaneis ; acheneis obovatis vel 

 olfcordatis compressis laevibus. Ind. or. 



Ad hanc speciem refert cbrms. Nees ia litt. C. rotundum Lin. Fl. 

 Zeyl. p. 3f!. sub : C. Linneanus Nees. Folio ad basin brevi convoluto 

 subulato ; umbella simplici , involucro diphyllo paulo breviore ; spi- 

 culis alternatim subcapitatis pluribus linearibus multitloris , squama- 

 rum obtusarum lateribus enerviis ; stylo bifido ; achenio obovato 

 compresso minute tuberculato fusco. Differt a C. hexastachyo Bottb. 

 spiculis in sing-ulo radio pluribus 5 — 14 mag-is confertis angustioribus 

 et caryopsi obovato-compressa. Nees. Ind. or. 



85. C. PATENS. Vahl. (En. 2. 334.) Culmis erectis 

 triquetris (1 ^2 — 4-poIlicaribus) setaceis basi foliatis; foliis 

 liueari-subulatis carinatis culmum aequantibus ; umbella 

 subcomposita sub-4-radiata , radiis capillaribus ; involucro 

 sub-3-phyllo , unico foliolo umbellam superante ; fpiculis 

 4 — 8-Iinearibus remotiusculis patentissimis multi- (36-) 

 floris ; squamis oblongis obtusis brevi mucronatis enerviis 

 dorso carinatis latere albidis vel ferrugineis ; acheniis ob- 

 longo-subrotundis compressis nigris. (•) Guinea. 



86. C. COMMUTATUS. Steud. (mpt. 1842.) Radice 

 fibrosa caespitifera; culmis erectis teneris (2 — 4-polIicari- 

 bus) foliatis ; foliis planis linearibus' vix carinatis (1 — 2- 

 pollicaribus) acuminatis similibus involuci subtetraphylli 

 foliolis umbella longioribus et cum his apicem versus remo- 

 tiuscule minutim serrulato-scabris ; umbellae 5 — 8-radiatae 

 radiis inaequalibus uno alterove sessili, apice polystachyis ; 

 spiculis subdistiche approximatis multi- (10 — 24-) floris ; 

 flosculis subimbricatis demum distinctis patulis (vix semi- 

 linealibus) ; squamis oblongo ovatis subtruncatis ad latera 

 albo-ferrugineo variis , carina viridi in mucronulum brevis- 

 simum rectum excurrente ; achenio minutissimo ovato albo 

 (sublente validissima) puncticulato-asperulo. C. squarrcsus 

 Hochst. hrh. Kotsch. nub. it. nr. 53. (Certe non est planta 

 a Rotthoellio t. VI. f. 3. illustrata , quae forsau Linnaei 

 homonyma nec C. patens Vahl. videtur uti autor se ipsum 

 serius corrigit in schedulis scriptis.) (•) Nubia. 



87. C. TRUNCATULUS. Steud. (Flora 1842. 581. 

 Hrbr. un. it. abyss. nr. 821.) Radice fibrosa tenui; culmis 

 caespitosis triquetris tenerrimis (1 — -2-uncialibus) striatis 

 glabris ; foliis angustis linearibus culmum aequantibus vel 

 brevioribus ; involucri diphylli foliolis 2 utroque vel altero 

 umbellam superante; umbellae simplicis radiis inaequalibus 

 3 — 5 apice sub-5-stachyis; quandoque subramosis; spiculis 

 16— 20-floris; flosculis minutis vix linealibus remotiuscuhs 

 distinctis patentibus; squamis lineari oblongis apice trunca- 

 tulis obtusis (sub lente vahdissima) crenulatis , margine 

 hyalino albescentibus , nervo medio viridi in mucronulum 

 brevissimum uncinatum excurrente ; achenio a latere com- 

 presso ovato albido tenuissime puncticulato. (•) Abyssin. 



88. C. OBSTINATUS. Steud. Radice fibrosa tenui 

 caespitifera ; culmis densis compresso triquetris striatis 

 glabris (2 — 3-poIIicaribus) ; foliis anguste linearibus apice 

 spinuloso-scabris culmum subaequantibus ; involucri sub- 

 triphylli foliolis urabellam superantibus vel aequantibus' 

 foliis conformibus ; umbellae subsimplicis vel compositae 

 radiis inaequalibus in minoribus subnullis (ut umbellam 

 simplicem aemulent) in majoribus distinctis (usque pollica- 

 ribus) 3 — 6 apice subconferto-poly- (usque 15-) stachyis ; 

 spiculis elongatis linearibus 30 — 70-floris ; floscuhs confer- 

 tiusculis distinctis patulis ; squamis ovatis truncato-obtusis 

 margine livido-membranaceis , dorso brunneis distincte 3- 

 basi saepe 5-nerviis , nervo medio in mucronem vix recur- 

 vatum excurrente ; achenio ovato fusco tenuissime puncti- 

 culato. C. patens Hochst. in Hrbo. Hohenackeri sect. 2. 

 nec Lirmaei planta nec homonyma Vahlii.^ (•)? Ind. or. 



