10 



707), but obtained by the earlier collectors. Grand Cayman (Mills- 

 paugh 1296). Common in the West Indies. 



35. CYPERUS FERAX, Rich. Act. Soc. Hist. Nat. Paris' 



II : 359. 1806. 

 Prodr. Fl. Ind. 



Occ. 



1 : 106. 1792. 



Cyperus flexiiosus, Vahl, Enum. 



Tor ulinium confer turn, Hamilt. 



15. 1826. 



Tor ulinium fer ax, Urban, Symb. Ant. II: 165. 1900. 



Common in swamps and along streams at low and middle eleva- 

 tions. Hartford, near Priestman's River (Maxon 2531) ; near St. 

 Paul (Marble 699) ; Troy (Maxon 2930 ; Britton 471) ; Mona (Harris 

 8939). Widely distributed in warm and tropical parts of America. 



36. Cyperus Vahlii, (Nees) Steud. Syn. PI. Cyp. 48. 1855- 



Diclidium Vahlii, Nees in Mart. Fl. Bras. II : 53- l843" 

 Cyperus flexiiosus, Griseb. PL Cub. 238. 1866. Not 

 Vahl. 1806. 



Collected in Jamaica by Wilson as cited by Clarke ; Jamaica 



Plants No. 844. Cuba ; Haiti ; Windward Islands. 



37. Cyperus SPECIOSUS, Vahl, Enum. II : 364. 1806. 



Cyperus Micliauxianus, Schultes in R. & S. Syst. II : 



Mant. 123. 1824. 



Torulinium Miehauxianum, Clarke in Urban, Symb. Ant. 



II : 56. 1900. 

 This species of Eastern North America is cited by Clarke as col- 

 lected in Jamaica by W. Wright. 



CYPERUS ALTERTNIFOLIUS, L., a widely cultivated ornamental 

 species, native of Tropical Africa, has escaped from Castleton 

 Gardens and become established along the Wag Water River as 

 observed by Mr. William Harris. 



3. ELEOCHARIS, R. Br. Prodr 

 Spikelet cylindric, scarcely or not 

 scales coriaceous, not keeled 

 Culms terete, nodose 

 Culms angled, continuous 

 Spikelet ovoid or oblong, thicker than the 

 culm ; scales membranous, keeled. 



Style-branches 2 ; achene lenticular or 

 biconvex 



Upper sheath with a membranous hya- 

 line limb ; rootstock slender 

 Upper sheath i-toothed ; rootstock none 

 Style-branches 3 ; achene 3-angled 

 Culms continuous 



Culms setaceous or filiform 



Achene cancellate ; spikelet 1-4 — 

 flowered 



Achene smooth ; spikelet 8-10 — 

 flowered 

 Culms slender 

 Culms stout, pseudo-septate, constricted 

 under the spikelet 



Fl. Nov. Holl. I: 224. 1810. 

 at all thicker than the culm ■ 



1. E. inter stincta 



2. E. mutata 



3. E. flaccid a 



4. E. capitata 



5. E. retroflexa 



6. 



7- 



E. 

 E. 



microcarpa 

 alb id a 



8. E. geniculata 



Type species Scirpus palustris, L. 



