198 CYPERACEAE 
a hispidulous on the veins, 10 mm. 
wide or less, those of the fertile culm mod- 
erate ly sm mailer than those of the sterile. 
Sessile ee ee eee staminate spike and 
ap 
Leaf-blades 1-3 dm. long: per p 
mm. long, the sides 1.5 mn 
vide, essentially beak 59. C. abscondita. 
Tea? blades 1.5-3.5 dm. m perigy? nium 
4 5 mm. long, the sides 2 mm. wide, 
eak 1 mm. long. 60. C. magnifolia. 
Bine spike conspicuous, peduncled : pis- 
tillate E E bracts not at 
all spatha 
Lowest SC pcs "bistillate Spikes with a 
pistillate flower: leaf-blades not glau- 
cous, erect, 2. -5 mm. wide. 61. C. digitalis. 
Lowest scale of pede T empty or 
with a staminate flow leaf-blades 
more or less EET e ng, 4-8 
mm. wide. 62. C. laziculmis. 
Perigynium obtusely triangular, long-tapering at 
base, smooth. 
Sterile shoots reduced to tufts of leaves. 
Pistillate scales very rounded- truncate: beak 
of perigynium short, abruptly bent: culm 
Strongly narrowly wing-margined: leaves 
not semi-evergreen 63. C. albursina. 
Pistillate s scales acuminate to strongly cuspi- 
erigynium ien ascending, 
branous, 3-4.20 mm. long: leaf-blades 
beneath’ and Gia conspicuously white- 
ee culm narrowly wing-mar- 
64. C. heterosperma. 
Perigynium spreading-ascending, subcori 
aceo mm. long: Mus not 
white- striolate beneath,except at apex 
not wing-angle 65. C. laxiflora. 
Sterile shoots developing conspicuous culms: 
lea not semi-evergre 
Péricvuiom obovoid- ellipti? or fusiform, 
rather sharply angled above and with 
straight conspicuous beak. 
Perigyn ium strongly nerved, 3.5-5 mm. 
ong. 
Pistillate spikes short-oblong, few- 
flowered, the lower on long capillary 
peduncles : : culm and bract-sheaths 
inat 
spike usually long-peduncled. 66. C. stylofiera. 
p Spikes linear-oblong, 10-20- 
ak as on erect peduncles: culm 
mou 
trorsely ids late: staminate spike 
and most pen illate spikes 
eos A ous 67. C. crebriflora. 
Perigynium nerveless or nearly so, 3-4 
mm. long: pistillate spikes linear-ob- 
long, many-flowered, erect:  bract- 
AS Ee retrorsely serrulate 
ard uth. 68. C. leptonervia. 
Batis dun a Pe triangular-obovoid 
with abruptly bent short beak: 
spikes many-flowered. 
Culm not purplish-tinged at a e 
perigynium obovoid, 3-4 ng: 
staminate scales usually pc K 69. C. blanda. 
Culms strongly purplish-tinged at the 
se: M i oadly obo 
oid, 2.5- 
3 mm. long: staminate scales usually . 
reddish- bios: -tinged. 70. C. gracilescens. 
