256 OXLIIL CYPERACER. [ Cyperus. 
a — thick, oblong or lanceolate. Glumes 
carcely acute. Stems obtusely tri- 
a 
Spikelets- 8 to 12- flowers. (inpet. imbricate 
M MO . 93. C. fulvus. 
casia imbrica’ ‘ 4. C. carinatus, 
Spikelets of C. posue Stems stout, acutely 3- 
led. Involucral bracts 1 or 2 very lon : 
t come . 35. C. alterniftorus. 
and scab 
— usually numer rous, in loose spikes along the rays 
ofa simple or compound umbel (Ornati). 
rese e usually pale, the riach of the spike 
. 36. C. pilosus. 
Spikelets di >i a rich brown. Glumes bordered by a 
Scarious mem . 97. C. ornatus, 
Spikelets air pale been or yellowish. green, ve ry ir- 
regularly s picate. Glumes ba obtuse, loosely si : 
i . 98, 0. Iria. 
Spikelets flat, pale, densely spicate. Glumes Yoosely jn 
imbricate, the keel p duced into a short point . . 39. O. eleusinoides. 
— very narrow Hia , loosely spicate and 
preading, the aiumos very narrow and distant . 40. C. distans. 
cr. IV. Papyrus. MEL ee ps: or denies the rhachis bordered by serinus wit 
dither | persistent or at length more s det Piet as small scales. Glu 
Style 3-cleft. Nut equally RES 
—— — spicate or clustered on the rays ofa 
pound umbel. Nut not exceeding half 
th e length ofi the glume (Corymbosi 
Stems leafless or the sheaths dr a very short 
amina, 
Glumes concave, not at all or scarcely keeled, Nut 
more or less dorsally flattened we s s AL. C. tegetiformis. 
Glumes keeled. Nut any triquetrons 
Ste versely septa’ QUE 2. Ç. articulatus 
Stems continuous . . .. E 148. 0. diphyllus. 
Stems leafy at the base. 
Spikea rather flat, usually acute, shortly and 
S. er loosely spicate or s Merse . 44, C. rotundus. 
e m li 
pikal er very flat, densely clustered or Pe 45. C, stenostachyute 
spelt ts slightly flattened, 3 in very d short 
Spikes or clusters. ivulbty Fogd. 
Leaves rather broad with kel points . . 46. C. congestus. 
Spikelets very narrow, scarcely flattened, in “dense 
-— Stems obtusely triquetrous. Leaves 
narrow 
. 41. C. subulatus. 
Spikelete: clu — or shortly spicate o n the Tays ofa 
5 to 8-flowered, in little globular 
clusters. lema obtu tiet . .. 48. C. sporobolus. 
Spikelets linear, scarcely flattened, 10- to 20- flowered, 
in close clusters or heads 
Eine care 
