43 CLASS VII. ORDER I. 



mu9, (zigadene) leaves lance-linear, narrow, long. 

 % b 



Trillium Calyx 3-leaved, inferior, spread- 

 ing : corol 3-petalled : berry 3-celled, many-seeded. 

 11. 12 — cernuujn^ (wake-robin) flowers peduncled, 



pendant, p-w rho7nboideu7n, flowers peduncled, 



erect or erectish ; Var. erectumy alburn^ and grandi' 

 Jlorum p. or w. 



Triglochin. Calyx 3-leaved, inferior; corol 

 3-petalled, resembling the calyx : stigmas some- 

 times 6: capsules dehiscent at the base. 5. 13— 

 7naritimum^ (arrow-grass) capsule 6-celled, grooved. 



RuMEx. Calyx 3-leaved : petals 3, converging ; 

 stigma many-cleft: seed 1, naked, three-sided. 12. 

 28 — crhfia:. (dock) valves ovate entire, all bearing 

 grains. %. — ohtusifolia y valves toothed, mostly bear- 

 in;^ grains. 1^. — aguatica, valves ovate entire, 

 grains obiiolete. Ij . — britanica^ valves entire, all 

 bcaiing grains, leaves obsoletely sheathed. 21/.— 

 aceCoscUa^ (sorrel) leaves hastate. II., 



Order XIII. Polyandria. 



Alisma. Calyx 3-1eavcd : petals 3 : capsules 

 nunertjus, 1 -seeded. 5. 13 — .y^/a7z^</^0j (watcr«plan- 

 taiiO Icuves heart-ovate. 71. w. 



CLASS VIL IlEPTAXDRIA. 

 Order I. INIoxogynia. 



Trien'talis. Calyx 7-lcaved : corol T-parted, 

 ccjual, flat : berry juiceless : number of stamens 

 variable. 20. 34 — europca^ (chick-wintergreen) 

 leaves lanceolate, clustered at the top. X • w. 



JEscuLUs. Calyx hiflited, 4 or 5-toothed : co- 

 rd 4 or S-petalled, inserted on the calyx, unequal, 

 pubescent : capsule 3-celled : seeds large, chest- 

 nut-form. 23. 65 — hipfiocaiitanum^ ( horsc-chCBt- 

 nut) leaves 7-frinj^ed, corol 5-petaUed. \ . c» 



