254 ENGLISH WILD FLOWERS. 



12. Icosandria, twenty or more stamens placed on 



the calyx. This includes the wholesome and 

 popular rose tribe. 



13. Polyandria, twenty or more stamens inserted 



on the receptacle. Most of the plants in this 

 order are poisonous. 



Nothing can be more easy than to decide if a 

 plant belongs to any of the foregoing classes. 

 You have only to count the stamens and notice 

 the position in which they are placed. 



14. Didynamia, four stamens, two of which are 



longer, and, as the name implies, more power- 

 ful than the other two. 



15. Tetradynamia, six stamens, four of which are 



long, and two short. 



16. Mbnadelphia, the filaments of the stamen united 



in one stem, or, as the name expresses, one 

 brotherhood. 



17. Diadelphia, stamens united by their filaments 



into two bundles. 



18. Polyadelpliia, stamens united by their filaments 



into three or more sets. 



19. Syngenesia, stamens united by their anthers. 



Flowers mostly compound, as the daisy and 

 dandelion. 



20. Gynandria, the stamens are united on the 



pistil. 



21. Moncecia, the stamens and pistils on separate 



flowers in the same plant. 



