Cyperus. triandria monogynia. 205 



sessile and from eight to ten peduncled, composed of erect, 

 linear, short-pedicelled, compound spikes, of simple, sessile, 

 lanceolate, from six to ten-flowered spikelets which surround 

 every part of the compound spikes. Involucre three-leaved, 

 with some smaller within these three, margins and keel as in 

 the leaves. Involucels small, one-third the length of the 

 umbellets. Scales membrane-bordered, acute. Filaments 

 three, membranaceous. Anthers ending in a thread. Seeds 

 three-sided. 



36. C. umbellatus. Void. enum. pi. 2. 362. 



Culms from four to six feet, blunt-angled. Umbel de- 

 compound ; spikes all sub-sessile, linear, spreading; spikelets 

 numerous, alternate, from three to four-flowered. Seed 

 elliptic, three-sided. 



Teling. Pedda shako. 



A large species, growing in standing fresh water. 



Root fibrous. Culms erect, from four to six feet high, 

 pretty smooth, naked, except at the base, obsoletely three- 

 sided, angles rounded, sides hollowed. Leaves mostly radi- 

 cal, sheathing, the longest of them about as long as the culm. 

 Umbel decompound, spreading, about six inches each way. 

 Umbellets, two or three sub-sessile, and from five to ten on 

 pretty long peduncles of unequal lengths ; they are compos- 

 ed of small partial, short-pedicelled umbellets of three to six 

 linear compound spikes, composed of numerous, small, ses- 

 sile, from three to four-flowered, simple spikelets. Involucel 

 from three to four-leaved, of the length of the umbellets. 

 Involucre from three to six-leaved, unequal ; the longest from 

 two to three feet, the shortest as many inches. Seeds three- 

 sided, smooth. 



37. C. digitatus. R. 



Culms from one to six feet high. Umbel decompound, fas- 

 tigiate. Involucre and involucels many-leaved ; spikes digi- 



