TABLE OF LINN^EAN ARTIFICIAL CLASSES AND ORDERS 



A. Stamens and pistils in the same flower. 



* Stamens free and equal. 



Cl. 1. Monandria, with 1 stamen. 6. Hexandria, with 6 stamens. 



2. Diandria, 2 stamens. 7. Heptandria, 7 stamens. 



3. Triandria, 3 stamens. 8. Octandria, 8 stamens. 



4. Tetrandria, 4 stamens. 9. Enneandria, 9 stamens. 



5. Pentandria, 5 stamens. 10. Decandria, 10 stamens. 



11. Icosandria, 20 or more stamens, perigynous or inserted on the 



calyx. 



12. Polyandria, 20 or more stamens, hypogynous or inserted on the 



receptacle. 

 Orders. — In the first 12 classes the orders depend solely on the num- 

 ber of pistils, and they are named — Monogynia, 1 pistil. Digynia 2. Tri- 

 gynia 3. Tetragynia 4. Pentagynia 5. Hexagynia 6. Heptagynia 7. 

 Octagynia 8. Enneagynia 9. Decagynia 10. Polygynia more thau 10. 



** Stamens free, unequal. 



13. Didtnamia, 4 stamens, 2 longer than the others. 



Two orders. 1. Gymnosperma, the seeds naked. 2. Angiosperma, 

 the seeds inclosed in a pericarp. 



14. Tetradynamia, 6 stamens, 4 longer than the others. 



Two orders. 1. Siliculosa, fruit a silicle or pouch. 2. Siliquosa, 

 fruit a long pod or silique. 



*** Filaments united. 



15. Monadelphia, filaments forming 1 set. 



16. Diadelphia, filaments forming 2 sets. 



Orders depend upon the number of stamens, and have the same 

 names as the first 12 classes. 



**#* Anthers united. 



17. Syngenesia, 5 stamens, the anthers united (compound flowers). 

 Five orders. 1. Polygamia JEqualis, florets all perfect. 2. P. Su- 



perflua, disk florets perfect, rays pistil liferoua. 3. P. Frustranea, disk 

 perfect, rays neutral. 4. P. Necessaria, disk with stamens, rays with 

 a pistiL 5. P. Segregata, with a perianth to each floret. 



***** Anthers united to the pistil. 



18. Gynandria. 



Orders named according to the number of stamens, as Monandria, &,c. 



B. Stamens and Pistils in different flowers. 



19. Moncecia, stamens and pistils on the same individuals. 



20. Dicecia, stamens and pistils on different individuals. 



Orders named according to the number of stamens, except where 

 there is a union of tha filaments ; then named Monadelphia. 



