14* 8CI2RXA Berg, Xongl* Ao»d. Svens! « - l« 2 : I « I? , 
Annuall or perennial®, ■. it! leaf,.- calms* spikelvit.:. small, 
clustered, spicate or paniculate; flowers monoecious, the 
staminate and pistillate in the same or separate clusters? 
pistillate spikelets 1-flowered, the stamina to many- .'lowered, 
the scries spirally imbricate; perianth none; style 3-oleft, 
deciduous; achene globose or ovoid, obtuse^hard and bonelike, 
usually subtended at base by a disk. --About 200 species, 
widely distributed in temperate and tropical regions. 
