874 CYPERAGE^ Cyperus. 



nerviam pallide brunneis, rachide alata, stylo trifido, nucula oblonga 

 obtusa triquetra gluma duplo breviore %. C. venustus K'^ Agr. p. 

 68 (non R. Br. qui C. exaltatum Retz sistit). — C. subulatus Bock 

 Linn. 36, p. 291 non Steud — C. xanthocomus Link Hort. 1, 316. — 

 C. ornithopodioides Delile (teste ipso Delile etcl. Aschers. ex herb. 

 Delile.) — C. Wiestii Steud. Glura. p. 35 (ex cl. Ascherson benigna 

 communicatione). 



Hab. iu paludosis et ad aquas iEgypti inferioris, Alexandriae (Duparq ! 

 Letourn!), Rosettee (Ehrenb. exs. sub C. alopecuroide) , Damiatce (Sieb !), 

 prope Kahiram (Schw !(. 



Ar. Geogr. Africa tropica, Senegalia, India, Nova Hollandia, America tro- 

 pica. 



26. G. articulatus (L. Sp. 66) perennis, rhizomate stolonifero, 

 culmis crassis elalis teretibus septis transversis interstinctis basi 

 vaginis laxiusculis obsitis aphyllis, umbella composila multiradiata 

 radiis inaequalibus, involucro ad squamas breves oblongas acutas 

 reducto. spiculis ad radiorum apicem fasciculatis anguste linearibus 

 elongatis multifloris, glumis imbricalis tandem apice patulis navicula- 

 ribus oblongo-lanceolatis obtusis dorso virentibus 3-5-nerviis lateri- 

 bus stiamineis vel fuscescentibus, staminibus ternis persistentibus, 

 stylo longo trifido, rachide flexuosa alata, nucula oblonga trigona 

 basi attenuata apice mucronata %. C. Niloticus Forsk. Descr. 13, 



Hab. in paludibus, Egyptus inferior ad Alexandriam (Gaill! Duparq ! 

 Letourij !) ad Ismailia (Letourn !). 



Ar. Geogr. Senegalia. Africa txopica, India, Nova Hollandia, America sub- 

 tropica et tropica. 



27. C. diphyllus (Retz Observ. 5, p. M) perennis, rhizomate 

 stolonifero, culmis crassis elatis teretibus eequalibus nec septatis basi 

 vaginis in limbum lineari-lanceolatum brevissimum abeuntibus obsi- 

 tis, umbellae compositse radiis 7-9 inaequalibus, involucri phyllisbinis 

 umbella brevioribus vel brevissimis, spiculis ad radiorum apicem 

 brevissime spicatis anguste linearibus elongatis multifloris, glumis 

 imbricatis oblongis obtusis navicularibus dorso virentibus trinerviis 

 lateribus pallide brunneis, staminibus ternis, stylo trifido, rachide 

 flexuosa alala, nucula.. . %. C. Kmnigii Vahl Enum. 2, 302. 



Hab. in paludosis Babyloniae ad ripas Tigridis (Noe 117 !). 



Valde affinis C. articulato et probabiliter ex cl. Kunth et Bentham 

 hujus varietas culmis non trnnsverse septatis, foliis et involucro paulo magis 

 evolutis. 



Ar. Geogr. India, Nova Hollandia. 



28. C. Papyrus (L. Sp. 70) rhizomate crasso repente, culmis 

 crassissimis valde elatis basi vaginis imbricatis aphyllis vel in lira- 

 bum late et breviter lanceolatum abeuntibus obsitis superne trique- 

 tris, umbella nutante amplissima sequaliter multiradiala patente 



