CLASSES, THEIR STAMENS AND PISTILS. 



This cut shows the difference in the length of the 4 sta- 

 mens, 2 short, and 2 long, and is class Didynamia. 



This is the class Tetradynamia, 6 stamens, 4 long and 2 

 short. 



Class Monaddphia, stamens united by their filaments in 

 one set. 



This is class Diadelphia, (stamens with their filaments 

 united in two sets.) 



This class Syngmesia, (5 anthers united in a compound 

 flower.) 



MM 



jfa *P 



The last cut represents class 

 Gynandria, stamens growing out 

 the pistil ; the two next, class 

 Mon&cia, stamens and pistils on 

 separate corollas on the same 

 plant; and the two first, class Di- 

 (zcia, stamens and pistils in separate corollas on different plants. 



This cut represents 

 the cryptogamous 

 plants, (stamens and 

 pistils invisible.) 



Classes. 



The 1st class, M'jnandria, is composed of those plants the flowers 

 of which have one stamen. 2d, Diandria, those with two stamens. 3d, 

 Triandria, with three. 4th, Tetrandria, with/owr. 5th, Pentandria, 

 with jive. 6th, Hexandria, with sir. 7th, Heptandria, with seven. 

 8th, Octandria, with eight. 9th, Enneandria, with nine. 10th, De.c- 

 andria, with ten. llth, Icosandria, over ten, (on. the calyx.) 12th, 

 Polyandria, over ten, (on the receptacle.) 13th, Didynamia, four, 

 (2 long and 2 short, flowers labiate.) 14th, Tetradynamia, six, (four 

 long and 2 short; flowers labiate.) 15th, Monadelphia, (Stamens 



