GENERA AND SPECIES. 
Minute plants, about 2 in., densely tufted ; spikelets 
solitary, on stalks shorter than the leaves; no 
bristles. 
Leaves firm, channelled; fertile flower 1; 
obovate, rugose 
Leaves flat, streaked; fertile eee 2s me weptd. 
smooth, raised on a thin disk 
nut 
Fimbristylis. 
Nut longitudinally and transversely striate ; 
ciliate, stamens usually 3 
Nut almost smooth, minutely striate; style ealaciee! 
Small tufted annual, stems filiform ; leaves linear, 
hairy; stamen | 
Tall, glabrous; stems rigid; asia" narrow-linear ; 
stamens 3 
Nut granular; leaf-sheaths onieae: ah ‘hie pee styl 
glabrous; stamens usually 1 . 
Nut tuberculate, 3-angled; style pithcins aeons 3 
a 
Heleocharis. 
Stems round, hollow, partitioned, up to 5 ft. ; 
dark-coloured with a hyaline border 
Stems solid, somewhat darf; bracts keeled. 
Stems rather slender, round. 
Sheathing scales with a small erect point; 
nut biconvex; stigmas 2 
No point to the scales ; nut triangular; yh 
mas 3 
Stems filiform; hypogynous peter rowhe ae tri 
angular striate se Ss , a: 
bracts 
Seirpus. 
Spikelets 3 to 6, sessile in a lateral cluster; stems and 
leaves triangular; bracts 2-lobed at the summit; 
stigmas 3 
Spikelets many-flowered, in a ter nal ‘edad or cyme. 
Stems triangular ; leaves broad- linear, keeled, but 
otherwise “flat ; ‘involucral bracts leafy, the lowest 
long and erect 
Stems round, or somewhat ohipiieaneel dew ds the 
summit ; leafless except sheathing scales; invo- 
lucral bracts short, erect, rigid ; stigmas 2. 
Hypogynous bristles 6, filiform, with reflexed 
hairs ; 
Hypogynous AeA 4 to 6," sAptienel, plumose 
with lax hairs 
183 
Tepperi 
discifer 
communis 
velata 
ferruginea 
barbata 
Neilsoni 
sphacelata 
acuta 
multicaulis 
acicularis 
pungens 
maritimus 
lacustris 
litoralis 
