26 C. B. Clarke: 



Cyperus Gardneri Nees in Mart. Fl. Bras. II pars 1 (1842) p. 34; 

 cf. Boeck in Linnaea XXXVI (1869 70) p. 410 in nota. 



Cyyerus corticatus C. Wright in Sauv. Cub. (1871) n. 2570 p. 171. 

 Hab. in Cuba: C. Wright. 

 Distrib. Pernambuco. 



21. Cypcrus virens Mich. glaber, robustior, rhizomate brevi, 

 obliquo; cuhnis 3 8 dm. loDgis; foliis cum 3 / 4 parte culmi aequi- 

 longis, 6 9 mm. latis, plus minus spongiosis, saepe conspicue trans- 

 versim lineolatis; umbella polystachya, saepius composita umbellulis 

 bracteatis; bracteis umbellam superantibus cum foliis aequilongis; spi- 

 culis 8 20-nim fasciculatis, usque ad 12 mm. longis, 3 4 mm. latis, 

 viridibus; glumis navicularibus, ovali-oblongis, obtusis, 3-nerviis, ob 

 cellulas laxas lucidis; stamine 1, laterali; nuce ellipsoidea, trigona, apice 

 lanceolata, cum y 2 3 / 5 P ai "te glumae aequilonga; stylo cum y 2 parte 

 nucis vix aequilongo, ramis 3 breviter extrusis. 



Cyperus virens Mich. Fl. Bor. Amer. I (1803) p. 28; Kunth 

 Enum. II p. 40; Boeck.f in Linnaea XXXV (186768) p. 553. 



Cyperus veyetus A. Rich. in Sagra Fl, Cub. III p. 285? 



Cyperus snrinamensis Griseb.f Pl. Cub. p. 237; Sauv.f Cub. 

 n. 2578 p. 172. 



Hab. in Cuba: C. Wright n. 3357. 



Distrib. in America a Virginia usque ad Argentinam. 



Var. /?. Brittoni C. B. Ckrke, evolutus, foliis vix spongiosis; um- 

 bellae radiis 12 usque ad 8 cm. longis; spiculis usque ad 14 mm. longis. 

 Cyperus virens Britton! in Bull. Torrey ClubXIII (1886) p. 208. 

 Cyperus vegetus Pursh Fl. Amer. Sept. I (1814) p. 51; non Willd. 

 Hab. in Guadeloupe: l'Herminier n. 44. 

 Distrib. Florida. 



22. Cyperus suriuamensis Rottb. glaber, culmis 2 6 dm. longis, 

 gracilioribus; foliis 2 3 mm. latis, non transversim lineolatis; spiculis 



10 50-nim capitatis, admodum compressis, delicatulis, usque adllmm. 

 longis 2 3 mm. latis 30 40-floris, flavescentibus nitidis vel fusces- 

 centibus; glumis minute apiculatis; stamine 1; nuce cum x j. 2 parte glu- 

 mae aequilonga, ellipsoidea, trigona, apice pyramidali, ceteroquin fere 

 ut C. vircns. 



Cyperus surinamensis Bottb. Descr. et Ic. (1773) p. 35 t. 6 fig. 5; 

 h/nifh Fnum, II p. 43, syn. C. polycephalo Schrank excl; Griseb.f 

 Kar. p. 118, et Flor. p. 564; Boeckf in linnaea XXXV (1867 68) 

 p. 15 S; Duss Fl. (1S97) p. 537. 



Oyperus formosus Vahl Enum. I / (IS06) p. 327; Kunth Enum. 



11 p. 11. 



