HEX ANDRI A.— POLYGYNIA. 147 



259. SCHEUCHZERIA, Cal. 6-parted. Cor. 0. Anth. 



linear. Stig. sessile, lateral. Caps, inflated, 

 distinct, mostly 2-seeded. 



260. TR1GLOCHIN. Perian. 6-leaved, deciduous ; 



leaflets concave ; 3 of the leaflets inferior and 

 more calycine. Starn. 3 — 6, very short; anth. 

 » turned outward. Stig. nearly sessile, adnate. 

 Caps. 3—6, united above by a com. receptacle 

 and axis, generally separating at the base, 1- 

 seeded, not opening. 

 JG1. GYROMIA. Cal. 0. Cor. 6-parted, revolute. Fil. 

 and anth. distinct. Styles ; stig. 3, filiform 

 and divaricate, united at the base. Berry 3- 

 celled ; cells 5 — 6-seeded. Seeds compressed, 

 3-sided. 



262. TRILLIUM. Cal. 3-leaved. Cor. 3-petalled. 



Stig. sessile. Berry superior, 3-celled ; cells 

 many-seeded. 



263. RUMEX. Perian. 6-leaved. Nut triquetrous, 



covered by the 3 interior valviform leaves of 

 the perianth. Stig many-cleft. 



TETRAGYNIA. 



2G4. SAURURUS. Flowers in an ament or crowded 

 spike ; «cales 1 flowered. Cor. 0. Anth. ad- 

 nate to the filaments. Caps, each 1, or rarely 

 2-seeded. 



POLYGYNIA. 



ALISMA. Cal. 3-leaved. Pet. 3. Caps, nume- 

 rous, 1-seeded, not opening. 



TRADESCANTIA. Spider-wort. Commelinea. 



1. T. virginica : erect; leaves lanceolate, elongated, 

 smooth, flowers in a crowded umbel, sessile, 

 pubescent. 

 HAB. Shady woods. May. 11. Stem 1 ft. high 

 \tap, ranalic. ; umb. crowd. ; fl. blur. 



