14 



scurity or uncertainty of their fructification did not 

 allow of being included in either of the preceding. 



The first eleven classes depend entirely upon the 

 number of the Stamina ; as Class I. one Stamen ; 

 Class II. two Stamina 5 Class III. three Stamina, &c. 



Class XII. depends upon the number, with the 

 additional circumstance of their growing out of the 

 Calyx. 



Class XIII. depends on the number, and their 

 growing out of the Receptaculum. 



Class XIV. and XV. depend on the relation of the 

 Stamina among themselves. The first of these has 

 four Stamina, two of which are long and two short ; 

 and the second has six Stamina, of which four are 

 long and two short. 



Class XVI. XVII. XVIII. depend upon the Sta- 

 mina being more or less united, as in class sixteen all 

 the Stamina are united together in one sheath ; in class 

 seventeen the Stamina are divided into two quantities ; 

 and in class eighteen, into more than two. 



Class XIX. has the upper part of the Stamina, 

 usually the Antherae, united into a tube, and the lower 

 part or filaments separate. 



Class XX. has the Stamina situated on the Pistil- 

 lum. These seven classes are illustrated by plates 

 prefixed to each class respectively. 



Class XXI. comprehends those plants where the 

 Stamina grow in separate flowers from those that pro- 

 duce the seed, yet both sorts of flowers growing at the 

 same time on the same plant, as in the Cucumber. 



