Cyperus, TRIANDRIA MONOGYNIA, 203 
the length of the umbel ; partial minute, setaceous. Umbel 
decompound, composed of one sessile umbellet in the centre, 
and from four to eight deed compound ones in the cir- 
cumference, supported “on fine, compressed peduncles of 
unequal lengths, Spikelets filiform, from ten to twenty- 
flowered, ‘Scales obtuse. Stamens three. Seed oblong, 
compressed. 
Obs, Its naked, exactly three-sided culms, and scarcity 
_ of short leaves readily distinguish it from all the other species — 
I have yet described,» C. tegetum has the angles rounded, 
and no Seth: : 
33. C. procerus, , Rotth. gram, 29. t. 5. f. 3. 
Culms from three to six feet high, angles sharp. Umbel 
decompound, Involucres none; spikelets alternate, linear ; 
flowers diandrous, Seeds obcordate, reer se without 
angles, “ 
Pota-pullu, Rheed, Mal. 12. p. 93. t. 50. Fe 
Is a native of moist ye Brae &e, amongst the gown. 
tains, 
Obs. i. Bengal this plant, or one een like it, (for 
it differs from it only in having three stamens, the culm, 
leaves, umbels, scales, and seeds being the same) grows on 
the banks of the Ganges and so low as frequently to be entire- 
ly under water during the high tides; yet it thrives and helps 
to bind the banks of the rivers where it grows, and is one of 
those plants that prevent their giving way so much to the 
rapidity of the stream as s they otherwise would do. 
“84. C. spinulosus. R. ; 
“Culms from three to five feet high, rigid. Umbel pai BA 
decompound ; ; spikes long and short peduncled, globular; 
spikelets ae from three to Sit: Riwaredy a and 
