i 



Subgen. I. Eucyperus. 251 



Buckley n. 5!), sandige Ufer des Indian River (A. H. Curtiss n. 3045!), Lake County 

 bei Eustis (G. V. Nash n. 1253!), Westküste des Sees Okeechobee (J. K. Small n. 82191), 

 bis Südflorida, Franklin County bei Carrabelle (H. N. Moldenke n. 1132!); Alabama, 

 Mobile Bay; Mississippi, Hörn Island (Tracy n. 7696!); Louisiana, New Orleans (I ngells). 



202. C. dentatus Torrey, Fl. Unit. Stat. L (1824) 61 et in Ann. Lyc. N. York IIL 

 (1836) 271; Kunth, 1. c. 34; Steudel, 1. c. 21; Boeck. 1. c. 578; G. B. Clarke in Journ. Linn. 

 Soc. XXL (1884) 124; Britton in Bull. Torr. Bot. Club XIII. (18H6) 209; Chapnian, Fl. 

 South. Unit. Stat. ed. 3. (1897) 536; Britton et Brown, Illustr. Fl. I. (1913) 303, fig. 738; 

 Fernald in Rhodora XX. (1918) t. CXXV, fig. 6. — C. parriflorus Muehlenberg, Gram. 

 (1817) 19; non aliorum. — C. micranthus Roem. et Schult. Mant. IL (1824) 121. — 

 C. Watsonianus Boeck. in Flora XLII. (1859) 435 (ex specim. in Herb. Boeck.). — 

 Rhizoma abbreviatum stolones longos tenues vaginis lanceolatis brunneis laxe vestitos 

 emittens. Culmus 8 — 24 cm altus rigidus triangularis interdum subconipressus laevis basi 

 paullo incrassatus inferne plurifoüatus. Folia culmum subaequantia rigida 2 — 3 mm 

 lata complicato-plana longe acuminata, vaginae brunneae. Bracteae 3 — 4 rigidae anthelam 

 superantes oblique patentes. Anthela composita rarius simplex vel semidecomposita 

 4 — 7-radiata, radii (irmuii sulcati inaequaliter (ad 6 cm usque) longi oblique patentes. 

 Spiculae 3 — 5-nim digitatae, saepe viviparae, oblongae vel lanceolato-oblongae 6—12 mm 

 longae 2'^mm latae subacutae compressae 6 — 14-norae. Rhachilla rigida anguste alata. 

 Squamae majusculae den.se imbricatae apice patulae membranaceae ovatae obtusae e 

 dorso late viridi carinato rugoso obsolete 3 — 7-nervoso in mucronem conspicuum sub- 

 excurvum desinentes bisulcatae lateribus sanguineae nitidulae saepe depallescentes. 

 Stamina 3. antherae lineares rubrae apice albo-cristatae. Nux y^ — ' J, squamae aequans 

 late obovata triquetra basi breviter et late stipitata apice perobtusa alba demum 

 rufescens, cellulae epidermales valde prominentes. Stylus longus tenuis, Stigmata 3 

 longa tenuia exserta. 



Atlantisches Nordamerika: Sandige sumpfige Plätze besonders in der Nähe 

 der Meeresküste von Maine bis SüdcaroJina, westlich bis Penn.sylvania und Westvirginia 

 (Heuser!, Fr. Tweedy!, A. Gray n. 71 p. p.!, Bart le 1 1 in PI. exsicc. Grayan. n. 131 !). 



var. ß. Ctenostachys Fernald in Rhodora VIII. (1906) 126. — Spiculae ad 25 mm 

 longae angustiores 16 — 40-norae. Squamarum mucrones vix prominentes. 



Massachusetts: West Pond, Plymouth (W. Boott); Middleborough Pond (W. 

 Boott); Barnstable (Fernald und Long n. 18003!). New Jersey: Pine Barrens 

 (A.Gray n. 71 p.p.!); Sümpfe bei Atsion (C. F. Parker). 



Nota. C. Weatherbianus Fern;iki in Rhodora XX. (1918) 190, t. CXXV, fig. 1—5 a ci. Fernald 

 pro prole hybrida bigenerea, nenipe Cyperua dentatus Torr, x Rhynchosjwra capilellata Vahl suinptu.s 

 mihi dubius esse apparet, parentibus indicatis in .systemate Cyperacearuni admodum distantibus. 

 Sed speciniina originalia non vidi. 



Crescit in M assac Ii use t ts: Sandy shore of Simnions Pond ((1. A. Wea t h c rby , Fernald 

 und Long n. 16287). 



203. C. commixtus Kükenth. in Fedde, Repert. XXIX. (1931) 195. — C. sphaero- 

 apermus C. B. Clarke in Thiselton-Dyer, Fl. trop. Afr. VIII. (1902) 336 pro minima parte. — 

 Rhizoma abbreviatum lignosum. Culmus gracilis sed firmus 20 — 30 cm altus triangularis 

 laevis vel leviter scabriusculus inferne foliatus basi incra.ssatus. Folia culmo breviora 

 iY> — 2mm lata complicato-plana longe attenuata rigidula, vaginae pallidae integrae. 

 Bracteae 2 — 3, ima culmum quasi continuans anthelam superans. Anthela simplex laxa 

 5 — 6-radiata, radii setacei patentes ad 2 cm longi. Spiculae 2 — 6-nim digitatae raro singulae 

 oblongo-lanceolatae subacutae 5—8 mm longae 2 mm latae compressae 16 — 24-florae. 

 Rhacliilla recta exalata. Squamae membranaceae dense imbricatae apice demum patulae 

 ovato-lanceolatae carinato-naviculares e carina viridi trinervi acuminato-mucronatae 

 lateribus purpureae marginibus late albo-hyalinae. Stamina 3, antherae longae lineares 

 rubro-apiculatae. Nux Vs squamae aequans elliptico-ovata triquetra stramineo-virens 

 apiculata. Stylus longus profunde trifldus. 



