27S 
TRIANDRIA. MONOGYNIA. 
4-12, longts. Involucrum triphylhim, phyllnm maximum 
longitudine umbellae, reliqua breviora, omnia gracilia, iti 
acumen acutissimum attenuata. Valvae memljranaceae. Sta- 
mina 3. Stylus trifidus. (Roxb.) 
184. Cyperus torosus. 
C. involucro subtriphyllo umbella longiore, spicis coryra- 
bosis patentibus, spiculis teretiuscuiis. 
C- torosos Vahl Eiium. 3. p. 339. Roetn.etSch. syst. veg- 
2. p. 195. Sprcng. syst. veg. 1. p. 221 
C. strigosus Rntlb. progr. 22. gratn. p. 40. t. 11. f. 3. 
Habitat in ludia orientali. 
Culmus acute angulatus. Involucrum 2-4 phyllnm, 
margine carinaque scabrum, partiale nullum. Oriireae trun- 
catae. Umbella simplex, 5-6 radiata, radius longior pollica- 
ris, partialis 3-5 radiata, radii brevissimi. Spiculae 4-Sj 
iinguiculares, circiter 20 florae. Valvae ovatae, obtusae, con- 
vexae, dorso striatae, totae spadiceae. (Vahl.) 
185. Cyperus -pustulatus. 
C. involucro umbella longiore, spiculis lineari - oblongis 
confertissimis convexis obtusis, valvis margines pha celatis. 
C. pustulatus Vabl Enuin. 2. p. 341. Roem. et Scii, syst 
veg. 2. p. 196. Spieng. syst. veg. 1, p. 222. 
Habitat in Guinea. 
Culmus pedalis, acute trigonus. Folia culmo alliora, li- 
nearia, angusta, laxa. Involucrum universale tTiphylltun, 
phylla margine laevia, duo umbella longiora , unicum semi- 
pedale; partiale vel nullum vel phyllnm 1-2 setaceum um- 
beihila breviu.s. Oclireae oblique truncatae, purpurascentes. 
Umbella composita, patentuisciila, 4-5 radiata: radius lon- 
gior subtvipollicaris; partialis 2 -3 radiata , radii breves pa- 
tentes. Spiculae 4-8, vix 2 lin. longae, 10-12 florae, con- 
vexiusculae, obtusae. Valvae concavae, striatae, virides, mar- 
gine macula atropurpurea. (Vahl.) 
* 186. Cyperus sphacelatus. 
C, involucro subtetraphyllo, spiculis lineari - lar.ceojatis 
complanalis acutis, valvis margine spbacelatis. 
C. sphacelatus Rottb. gram, p. 26. V-^alil Enum. 2. p.34l. 
Roem. et Sch. syst. veg. 2. p. 196. Sureng. syst. veg. 
1. p.222. 
Habitat in Guinea. 
Culmus sesquipedalis Vel brevior, acute angulatus, inferne 
2- 3 foliatus, interdum flavescens. Folia culmo breviora, li- 
nearia, superne margine scabra, pallide viridia. Involucrum 
3- 6phyUum, 2-3 umbella longiora, structura foliorum ; par- 
tiale vel nullum, vel phylla 2 setacea umbellula breviora. 
Ochreae aristatae. Umbella subcomposita 3-7 radiata; radii 
filiformes, longior 4 pollicaris; partiales brevissimi 3-4 sta- 
