XVI 



LINN^AN 



The Orders of the first thirteen Classes are founded on the number 

 or tSt^les in each flower : 



MoKOGraiA, 1 St7/le; DiGTNiA, 2; Trigynia, 3; Tetra- 



GYNIA, 4; PentAGYNIA. 5; HexAGYNIA, 6; HePTA- 

 GYNIA, 7; OCTAGYNIA. 8; DeCAGYNIA, 10: PoLY- 



GYNiA, many Styles, 

 The Orders of the 14th Class are two; 



1. Gymnospermia, Seeds 4, apparently naked. 



2. Angiospermia, Seeds in a distinct seed-vessel. 



The Orders of the 15th Class are two: 



L 



1. SiLicuLOSA, Seeds in a short Pod or Pouch. 



2. SiLiQuosA, Seeds in a long Pod, 



In the 16th, 17th, and 18th Classes, the Orders are founded on the 

 number of Stamens in each set: 



Triandria, 3; Pentandria, 5; Decanbria, 10, &c. ,in 

 each set. 



The Orders of the 19th Class are three, and ar^ founded on the struc- 

 ture of the flower, which is compound : 



1. JEqtjalis . . 



2. superflua . 



3. Frttstranea . 



All the Jlorets perfect. 



f Florets of the disk perfect; of the 



\ rai/, with Pistil only. 



fl^lorets of the disk perfect; of the my, 



\ with neither Stamen nor Pistil. 



The Orders of the 20th Class are founded on the number of the 



Stamens : 



MONANDRIA, 1 ; DiANDRIA, 2, &C. 



The Orders of the 21st and 22d Classes are founded on the number 

 union, and situation of the Stamens : 



MoNANDRIA, DiANDKIA, &C. MoKADELPHIA, &C. 



■ The Orders of the 23rd Class are three, and are: 



MoNfficiA, perfect flowers, accompanied with others that 

 are barren (without pistil), or fertile (without stamens), o 



difft 



different 



The Orders of the 24th Class are Natural Orders or Families: 



1. Pilices'; 2. Musci; 3. Hepatic^; 4. Lichenes; 

 5. Charace^; 6. Alg-e; 7. FuNGi. 



1 In the following pages considered a subclass; mcludmgPolypodiacec^, Osmmi- 

 daccce, Ophioglossacece, LycopodiacetE, Marsileaceece, and Equisetacece, 





