BOTANY. 32 



LINNEAN CLASSES. 



j. Jlonandria, one stamen in the flower, 



2. Diandria-t 2 stamens. 



3. Triandria, 3 stamens. 



4. Tetrandria, 4 stamens. 



5. Pentandria, 5 stamens. 



6. Hexandricit 6 stamens. 

 7- Heptandria, 7 stamens, 

 a. Octandria, 8 s am ens. 

 9. Bnneandria, 9 stamens. 



10. Decandria 9 10 stamens. 



11. Dodecandria, 12 to 19 stamens. 



12. Icotandria, about 20, or mot-*;, -stand ing an the calyx. 



13. Potyandrid, always 20 or more, on the "receptacle. 



14. Didynamia f 4 stamens, 2 of them uniformly the long- 

 est. 



15. Tetradynamia, 6 stamens, 4 of them uniformly the 

 longest. 



16. JWonadelphia, stamens united by their filaments in one 

 set, anthers remaining separate. 



17. Diad-elphia 9 stamens united by their filaments in two 

 sets, (sometimes in one set,) (lowers papilionaceous. 



18. Syngenesia, stamens 5, united by their anthers in one 

 set, flowers compound. 



19. Gynandria stamens stand on tl*e germ, style, or 

 stigma, separate from the base of the calyx and corol. 



20. M&ncecia, stamens and pistils in separate flowers, on 

 the same plant. 



21. Dicecia, stamens and pistils on separate plants. 



2. Cryptogamia, stamens arid pistils so obscure that the 

 plants can only be classed by natural families* 



