156 CLASS XV. 



and the calyx ; partition extending beyond the valves of the silique, 

 2nsiform; seeds in a single series. (mustard.) 



RAPHA'NUS. Calyx closed, silique, terete, not opening by valves, 1 

 or 2-celled; glands between the short stamens and pistil, and between 

 the long stamens and the calyx. (radish.) 



Exotic. 



BRAS'SICA. Calyx erect, converging ; partition extending beyond 

 ihe valves of the silique ; seed globose ; glands between the short sta- 

 mens and pistil, and between the long stamens and calyx. (cabbage, 

 turnip.) 



CLASS xv. MONADELPHIA. Stamens united by filaments in one 



set. 



Order 3. Triandria. Three stamens. 



SISIRYN' / CHIUM. Spatha 2-leaved ; perianth 0; corolla superior, 

 cleft or 6-petaled, tubular ; style 1 ; stigma 3-cleft ; capsule 3-celled.- 

 (blue-eyed grass.) 



Order 5. Pentandria. 



Exotic. 



ERO'DIUM. Calyx 5-leaved ; corolla 5-petaled ; nectariferous scales 

 5, alternating with the filaments; arils 5, 1-seeded, awned, beaked at 

 the base of the receptacle; awn spiral, bearded within. (stork's 

 bill.) 



Order 7. Heptandria. Seven stamens. 



Exotic. 



PELARGO'NIUM. Calyx 5-parted, upper division broader, ending in 

 a capillary nectariferous tube ; corolla 5-petaled, irregular ; the two 

 upper petals usually broader, with coloured veins; filaments 10, 3 of 

 them usually without anthers; arils 5, each 1-seeded, awned ; some of 

 the awns spiral. (stork geranium.) 



i 

 Order 10. Decandria. Ten stamens. 



GERA'NIUM. Calyx 5-leaved ; corolla 5-petaled, regular ; nectarife- 

 rous glands 5, adhering to the base of the 5 alternating long filaments; 

 arils 5, 1-seeded, awned, beaked at the elongated top of the receptacle ; 

 awn naked or smooth within, straight. 14. 73. (cranebill, false 

 crow-foot, herb-robert.) 



Order 12. Polyandria. Many stamens. 



ALTHJE'A. Calyx double, outer one 6 or 9-cleft ; capsules many, ai 

 ranged circularly, 1-seeded. (hollyhock.) 



MAI/'VA. Calyx double, outer one 3-leaved, inner one 5-cleft ; cap- 

 sules manv, arranged circularly, 1-celled, 1-seeded. (mallows. * 



