XXX 



TABLE OF LINN^AN ARTIFICIAL CLASSES AND ORDERS. 

 Div. i. Plants with conspicuous flowers. PHANEROGAMIA. 



A. Stamens and Pistils in the same flower. 



* Stamens free and equal. 



CL. 1. MONANDRIA, with 1 stamen. 6. HEXANDRIA, 6 stamens. 



2. DIANDBIA, 2 stamens. 7. HEPTANDRIA, 7 stamens. 



3. TRIANDRIA, 3 stamens. 8. OCTANDRIA, 8 stamens. 



4. TETRANDRIA, 4 stamens. 9. ENNEANDRIA, 9 stamens. 



5. PENTANDRJA, 5 stamens. 10. DECANDRIA, 10 stamens. 

 *11. DOUECANDRIA, 11 to 19 stamens. 



12. ICOSANDRIA, 20 or more stamens, perigynous or inserted on the calyx. 



13. POLYANDRIA, 20 or more stamens, bypogynous or inserted on the re- 



ceptacle. 



ORDERS. In the first 13 classes the orders depend solely on the number of 

 pistils, and they are named Monogynial. DiqyniaZ. TrigyninS. Tetragy 

 nia 4. Pentagynia'5. Hexagynia 6. Heptagynia 7. Octqgynia 8. Enneagyn- 

 ia 9. Decagynia 10. Polygynia more than 10. 



** Stamens free, unequal. 



14. DIDVNAMIA, 4 stamens, 2 longer than the others. 



Two orders. 1. Gymnospermia, the .seeds naked. 2. Angiospermia, the 

 seeds inclosed ia pericarp. 



15. TETRADYNAMIA, 6 stamens, 4 longer than the others. 



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

 long pod or eilique. 



** Filaments united. 



16. MOXADELPHIA, filaments forming 1 set. . 



17. DIADELPUIA, filaments forming 2 sets. 



*18. POLYADELPHIA, filaments forming more thnn 2 sets. 

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

 the first 13 classes. 



*** Anthers united. 



10. SfYNGENESiA, 5 stamens, the anthers united (compound flower?.) 

 Five orders. 1. Polygamia sEqualis, florets all perfect. 2. P. Superflua, 

 disk florets perfect, rays putiliferous. 3. P. Frustr&nea, disk perfect, rays 

 neutral. 4. P. Necessaria, disk with stamons, rajs with a pistil. 5. /'. Segre~ 

 gata, with a perianth to each floret 



* Anthers united to the pistil. 



20. GYNANDRIA. 



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



B. Stamens and Pistils in different flowers. ' 



21. MONOECIA, stamens and pistils on the same individual. 



22. DIOECIA, stamens and pistils on different individuals. 



Orders named according <o the number of stamens, except where there is a 

 union of the filaments ; then named Monadelj>hia, &f. 



*23. POLYGAMIA, perfect and unisexual flowers either on the same or dif- 

 ferent individuals. 



Three orders. Monoecia. Dioecia. Trioecia. 



Div. ii. Plants with inconspicuous flowers. CRYWOGAMIA. 

 24. CRYPTOGAMIA, neither stamens nor pUtils. 



Six orders, vii. 1. Filices. 2. tlusci. 3. Alg<?. 4. Fungi. 5. Hepaticce. 

 6. Lichenes. 



* The classes marked thus, * viz. Dodecaodria, Polyadelphia, and Polyga- 

 mia, are generally discarded by the American botanists. They comprize, at 

 least in our country, but few genera, and their characters are extremely va- 

 riable. They are, however, retained by Muhlenberg and Bigelow, and very 

 generally by the European authors. 



