168 SYSTEMATIC ARRANGEMENT OF PLANTS. 

 FIFTEENTH CLASS 26 . 



Flowers with six stamens, four longer 

 and two shorter, the blossom with more 

 petals than one. If the seed-organ is a 

 short pod, they belong to the first order 27 , 

 as shepherd's purse and honesty ; and if a long round 

 pod, to the second order 28 , as turnip and mustard. 



IV. Flowers with Stamens united by their Filaments. 



SIXTEENTH CLASS 29 . 



Flowers with the filaments of all the 

 stamens united at the base into one bun- 

 dle. If there are three stamens, they 

 belong to the first order 5 ; if five stamens, 

 to the second order 8 , as heron's bill ; if 

 seven stamens, to the third order 13 , as 

 stork's bill ; if eight stamens, to the fourth order 15 ; 

 if ten stamens, to the fifth order I7 , as geranium ; if 

 eleven stamens, to the sixth order 30 ; if from twelve 

 to twenty stamens, to the seventh order 19 ; and if 

 more than twenty stamens, to the eighth order 22 , as 

 the mallow and camellia. 



(26) In Latin, Tetradynamia. (27) In Latin, Siliculosa. 



(28) In Latin, Siliquosa. (29) In Latin, Monadelphia. 



(30) In Latin, Endecandria. 



