Cyperus. TKIANDRIA MONOGYNU. fH 



largest about a foot, or fifteen inches long, all are smooth. — Invo- 

 lucels three-leaved, length of the umbellets. — Flowers remote, scales 

 Qbluse. — Seed three-sided. 



40. C. tegetum. R. 



Leafless, culms from three to six feet high, angles rounded, umbel 

 decompound. Involucre as long, and longer than the umbel ; invo- 

 lucels chaffy. Spikelets linear-lanced, alternate. Seed clavate, three- 

 sided. 



Hind, and Bena-. Madoor-kat^. 



Is common in ditches, borders of lakes. Sec. in the vicinity of Cal- 

 cutta during the rains. 



Hoot creeping under ground, perennial. — Culms naked, gene- 

 rally from three to six feet high, obsoletely three-sided, smooth. — 

 Leaves no other than two or three sheaths embracing the base of the 

 culms. — Umbel decompound; umbellets sub-sessile, and on pe- 

 duncles of various lengths, sub-erect. — Involucre about four-leav- 

 ed, one or two of them longer than the umbel. — Involucels minute, 

 — Spikelets alternate, linear-lanceolate, many-flowered. — Seeds elip- 

 tically triangular. 



Obs. Those elegant, useful, durable, large mats so common on 

 the floors of rooms in and about Calcutta, are made of the culm of 

 this plant. When green they are split into three or four pieces> 

 which in drying contract so much as to bring the margins in 

 contact, or to overlap each other ; in this state they are wove. 



41. C. alopecuroidus. Rottb. gram. 38. t, S. f. 2. Fahl. Enum. 

 PL 2. 368. ': ' 



Culms from four to five feet high. Umbel decompound ; involucre 

 three-leaved, spikes nodding, spikelets alternate, many-flowered. 

 Wara-pulla. Rheed. mal. 12. p. 77. t. 42. 

 Cyperus glo?7ieratus. Liiin. Sp. PI. ed. fVilld. 12. 277. 

 T^his is also a large species, and a native of the same places. 

 Root fibrous. — Culms erect, from four to five feet high, except 



Aa a 



