Cyperaceae. 23 



Folia spongiosa; spiculae 3 4 mm. latae 



33. C. iacunosus Griseb. 

 ** Spiculae rhachilla conspicue alata; perennes. 

 Aphyllae, culmis pseudoseptatis. 



Culmus apice 3 4 mm. in diam., subteres 



35. C. articidaius Linn. 

 Culmus apice l 1 /^ mm. in diam., trigonus 



36. C. nodosus Willd. 

 Foliigerae. 



Stolones tenuissimi, mox emarcidi 34. C. esculentus Linn. 



Stolones in rhizomata lignea indurati 37. G. rotundus Linn. 

 *** Spiculae rhachilla conspicue alata; plantae elatae, in primo anno flo- 

 rentes. 

 Foliigerae. 



Rhachillae alae persistentes . . 38. (7. radiatus Yahl. 



Rhachillae alae mox solutae . . 39. C. digitatus Roxb. 

 Aphyllae. 



Bracteae umbellularum perlongae . 40. G. giganteus Yahl. 



Bracteae umbellulis breviores . . 41. C. comosus Poir. 



15. Cyperus nudicaulis Poir. glaber, natans, aphyllus, rhizomate 

 horizontali 3 mm. crasso; culmis approximatis, 3 8 dm. longis, mono- 

 cephalis; vagina summa truncata aut a cauda 1 4 mm. longa coronata; 

 bracteis 2 1, inferiore quasi culmum continuante, 5 15 mm. longa; 

 spiculis 1 12, digitatis, usque 24 mm. longis 5 mm. latis, 20 70- 

 floris, multum compressis, rhachilla persistente; glumis densissime im- 

 bricatis, acute carinatis, pallidis aut pallicle bruneis, elliptico-lanceolatis 

 apiculatis; staminibus 3, magnis; nuce cum 2 / 3 parte glumae aequi- 

 longa, ovoideo-lanceolata, basi subereo-incrassata; stylo longo lineari, 

 ramis 3 brevissimis. 



Cyperus nudicaulis Poir. in Lam. Encyc. VII (1806) p. 240; 

 Kunth Enum. II p. 48. 



Cyperus pectinatus Vahl Enum. II (1806) p. 298; Kunth Eniim. 

 II p. 107. 



Atomostylis cyperiformis Steud.f Cyp. (1855) p. 315. 



Anosporum nudicaule Boeck.! in Linnaea XXXVI (1869 70) 

 p. 411. 



Hab. in Martinique: Duss n. 479. 



Distrib. in Africa trop. cum Madagascar. 



16. Cyperus kumilis Kunth, glaber, annuus, culmis caespitosis, 

 5 12 cm. longis, monocephalis; foliis culmos saepissime superantibus, 

 2 3 mm. latis; capite saepius polystachyo, bracteis 3 usque ad 5 8cm. 

 longis; spiculis usque ad 1 cm. longis iy 2 mm. latis, 40-floris, lineari- 

 bus aut lineari-oblongis, viridibus aut pallidis, compressis; glumis navi- 

 cularibus, ovatis, acutis, 3-nerviis; stamine 1 (viso); nuce cum y 2 3 / 5 



