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CYPEREAE. Cttpews. 



9 



ribus compressis acutis 16 — 24-floris ; squamis ovato- 

 ellipticis breviter mucronatis carina trinerviis viridibus 

 lateribus stramineis vel pallide ferrugineis ; achenio oblique 

 oblongo lateribus compresso apiculato temiissime puncticu- 

 lato-scabro castaneo vel fuscescente, squama dimidio bre- 

 viore. 1\ Terrae austr. fere totius orbis. 



66. C. PAKICULATUS. Rottb. (ex Valil. En. 2. 333.) 

 Pallide virens; culino acute trigono (pedali et ultra) inferne 

 folioso; foliis iufimis distichis confertis patentissimis (2 — 3- 

 pollicaribus) rigidiusculislineari-attenuatis margine scabris; 

 involucri 5— 6-phylli foliolis 3 — 4 longioribus umbella 

 composita sub-7-radiata; umbellulis corymboso fasciculatis, 

 ramulis alternis ; spiculis lineari-lanceolatis sub-13-floris 

 acutis; squamis lanceolatis acutiusculis lateribus membra - 

 naceis substriatis albidis vel flavescentibus. Praecedentis 

 var. Kunth. Ind. occ. 



67. C. OLIDUS. Vahl. (1. c.) Involucre- 3-phyllo lon- 

 giore umbella composita triradiata ; radiis elongatis ; um- 

 bellulis corymboso-fasciculatis ; spiculis lineari-lanceolatis 

 elongatis sub-30-floris arcuatis ; caeterum praecedenti similis 

 et sec. Kunthium. C.polystacbyii Rottb. var. Am. austr. 



68. C. UMBRATICOLA. Kunth. (Cyper. 13.) Um- 

 bellae decompositae radiis corymbosis plerisque abbreviatis 

 confertis, involucro triphyllo laevissimo brevioribus; spiculis 

 glomerato-capitatis lanceolato-oblongis plurifloris pallido- 

 lusco-variis (quam in C. polystachyo multo latioribus mol- 

 lioribus dorso haud sulcatis) ; squamis obtusis laevibus ; 

 achenio compresso-lenticulari laevi. Pycreus umbrosus 

 Nees Linn. X. 130. Afr. austr. 



69. C. MUKDTII. Nees. (1. c. sub : Pycreus.) Radice 

 repente crassa; culmis caespitosis (vix '/j-pedalibus); um- 

 bella simplici 3 — 4-radiata cum media sessili involucrum 

 3 — 4-phyllum subaequante ; spiculis 3 — 5 in apicibus ra- 

 diorum alternatim approximatis oblongo-lanceolatis 12 — 

 16-floris ; squamis ovatis obtusis la*evibus dense brunneo- 

 irronatis margine involutis ; achenio obovato laevi. 1|. 

 Afr. austr. 



.70. C. OLIVACEUS. Vahl, (En. 2. 332. ex Kunth 1. c. 

 14.) Culmo gracili triangulari sulcato glabro ; umbella 

 sub-9-radiata ; radiis inaequalibus filiformibus , apice 7 — 

 18-stachyis, 2 — 3 brevissimis, longioribus hinc inde ramu- 

 losis ; involucri 6-phylli umbellam subaequantis foliolis 

 planis margine scabris; spiculis spicatim dispositis patentis- 

 Mmis linearibus compressis sub-20-floris olivaceis ; squamis 

 ovato-ellipticis carinatis mucronatis carina 3-nerviis viridi- 

 bus ferrugineo lineolatis , lateribus olivaceo-ferrugineis ; 

 staminibus 2 ; achenio oblique oblongo lateribus compresso 

 apicato punctulato-scabriusculo humectato atro sicco cine- 

 rascente nitore margaritaceo, squama vix dimidio breviore. 

 Pr. b. sp. 



71. C. INTACTUS. Vahl, (1. c.) Culmo gracili trian- 

 gulari glabro basi foliato ; foliis culmo brevioribus carinato- 

 planis rigidulis margine scabris; umbella 7-radiata, radiis 

 inaequalibus apice 7 — 13-stachyis , longioribus ramulosis ; 

 involucro 6-phyllo umbellam parum superan^e; spiculis 

 spicatim dispositis patentissimis linearibus compressis 10 — 

 H-floris; squamis late-ovatis, carinatis, obtusis muticis 

 dorso ferrugineo-lineolatis , carina trinerviis et viridibus 

 lateribus fuscescenti-stramineis ; staminibus 3. Prioris var. ? 

 Senegambia. 



7l b - CFILICINUS. Vahl. (I. c.) Culmis triangulari- 

 bus glabris basi foliatis ; foliis angustis carinato-planis 

 margine scabris; umbella 5 — 6-radiata, radiis valde inae- 

 qualibus , longioribus apice trifklis polystachyis ; involucro 

 sub-5-phyllo longissimo ; spiculis spicato-approximatis pa- 

 tentissimis lineari-lanceolatis compressis sub-13-floris ; 

 squamis carinatis mucronulatis dorso sub-5-nerviis , carina 

 Viridi, lateribus lateo-fuscescentibus ; staminibus 2; achenio 

 oblongo subapicato lateribus compresso subtilissime punctu- 

 lato nigro-castaneo squama 2 — 3-plo breviore. Am. sptr. 

 Steudel, Glumacoao. II. 



Vix eadem species ac sequens uti Torreyo Ann. N.York. III. 281. 

 videtur, cum specicm Vahlianam adhuc inter dubias recenset. 



72. C. NUTTALLII. Torr. (Ann. N. York. III. 252. et 

 Fl. of N. York II. t. 135.) Dense caespitosus; culmis 

 acute triangularibus (4 — 12-pollicaribus) , basi foliatis; 

 foliis culmum subaequantibus angusto-linearibus ; umbellis 

 distincte radiatis, radiis brevibus vel subsessilibus; involucri 

 tetraphylli foliolis binis longissimis , binis abbreviatis ; 

 spiculis alternis quandoque compositis rhachi approximatis 

 compressis acutis (fere 1" lonrns, 1 '/«'" latis) ; squamis 

 laxe imbricatis oblongo-lanceolatis acutis demum subcarti- 

 lagineis , apice minutissime 3-denticulatis , carina viridi, 

 lateribus flavescenti-brunneis ; staminibus 2 ; achenio ob- 

 longo-obovato apice obtuso truncato (sub lente valida) 

 punetis minutis ruguloso. C. caespitosus Torr. Cat. pi. N. 

 York. p. 89. non Foir. C. Torreyanus. Sehult. Mant. 2. 

 p. 101. 1J. Am. septr. 



73. C. HOLOSERICEUS. Hort. Hafn. (ex Kunth. 1. c. 

 15.) Culmo triangulari basi foliato glabro; foliis culmo 

 longioribus planis margine scabris; umbella sub-10-radrata; 

 radiis inaequalibus apice ramosis polystachyis ; involucro 

 hexaphyllo longissimo ; spiculis spicatim dispositis patenti- 

 bus lineari-lanceolatis compressis 10 — 11-floris; squamis 

 carinatis obovatis apice rotundatis obsolete mucronulatis, 

 carina 3-nerviis et viridibus ; lateribus albo-hyalinis vel 

 fuscescentibus ; staminibus 2 ; achenio oblique obovato- 

 oblorgo lateribus compresso subapicato subtilissime punctu- 

 lato ferrugineo squama dimidio breviore. 1[ Georgia. 



74. C. FLAVICOMUS. Michx. (ex Torr. Ann. N. York. 

 III. 253.) Culmo triangulari (1— 3-pedali) ; involucro 3— 

 5-phyllo longissimo glaucescente ; umbella pluriradiata 

 quandoque composita; radiis inaequalibus (2 — 3" usque 

 iongis); basil — 2 bracteis setaceis munitis ; spiculis lan- 

 ceolato-linearibus 12— 30-floris patentibus ('/:— 3 / 4 -polli- 

 caribus) demum reflexis ; squamis oblongis obtusissimis, 

 margine late scarioso, lateribus pallide flavescenti-brunneis, 

 carina viridi 3-nerviis apice subemarginatis; staminibus 3; 

 achenio obovato abrupte brevi-mucronulato , puncticulato 

 fusco-brunneo vel nigro. ®? Carolin. Georgia. 



75. C. ELEIOTIASUS. Sehult. (Mant. 2. 101. sec. Torr. 

 1. c. 254.) Culmo triangulari (6-pollicari) ; foliis angustis- 

 simis subsetaceis culmo brevioribus; involucro diphyllo, 

 foliolo altero longissimo , altero spiculis vix longiore ; spi- 

 culis ovato-oblongis fasciculatis terminalibus sessilibus 

 multi- (12— 24-) floris; squamis subobtusis carina viridi, 

 marginibus membranaceis. C. fasciculatus Lam, Am. sptr. 



76. C. MICRODONTUS. Torr. (1. c. 255.) Culmis 

 caespitosis triangularibus (2— 4-pollicaribus) foliis planis 

 (l 1 /*"' latis) ; umbellae radiis brevibus (vix l /«-polJ»« ari | m8 ) 

 confertis sessilibus ; spiculis numerosis lanceolato-lineanbus 

 (semipollicaribus) multi- (12— 16-) floris ; squamis deciduis 

 ovatis subacutis submembranaceis patulis sed dense imbri- 

 catis obscure striatis carina angusta viridi, lateribus pallide 

 flavescenti-brunneis ; staminibus 2 ; caryopsi oblongo-ob- 

 ovata obtusa ; rhachi squamulis interioribus persistentibus 

 denticulata. @ Carolina septr. 



77. C. TEXENSIS. Torr (1. c. 430. sub : microdontus ,9. 

 texensis.) Culmis caespitosis filiformibus gracilibus obtuse 

 triangularibus ; foliis angustissimis culmo brevioribus ; um- 

 bellae simplicis radiis (1—2-pollicaribus) 3- 4-nis: apice 

 sub-30-spiculiferis ; involucro 3-phyllo longiss.mo ; spiculis 

 linearibus ( 3 / t " longis) rhachi undique insertis subfascicu- 

 latis, cfompressis angustis acutis; squamis adpressis lanceo- 

 latis mucronatis ferrugineis carina viridi , staminibus 2 ; 

 achenio fusco-purpureo-brunneo , utrinque convexo ; rhachi 

 squamulis interioribus denticulata. (V) Texas. 



78. C. GATESII. Torr. (1. c. 255.) Culmo gracili ob- 

 tuse triangulari (pedali); foliis angustis; umbella plun- 

 ((j_8-)radiata; involucro subtriphyllo ; radiis valde inae- 

 qualibus longioribus 4—5 ultra 2-pollicaribus ; spiculis 



