STRUCTURE OF FLOWERS. 93 



bundles of petals arising from the place whence there 

 ought to proceed but a single petal or stamen ; this is 

 what is very well seen, for example, in certain double 

 Primroses ; but this peculiar case of multiplication leads 

 us to examine this subject in a general manner. 



Section X. 

 Of the Multiplication of the Floral Organs. 



The organs which compose the flower may be in- 

 creased, as to their number, in two ways : — 



1st. The usual number of verticils may be increased 

 by new verticils, like one of them, which are developed 

 in a regular but supernumerary manner. 



2d. The number of pieces of one verticil may be 

 increased by the unusual development of organs re- 

 sembling those of which it is composed. 



These two phenomena have been indifferently called 

 by the names of Doubling or Multiplication; but I prefer 

 the latter term, which appears to me less hypothetical 

 than the other. 



§ 1. — The Multiplication of the Hows of Verticils. 



The multiplication of the rows of one verticil is a 

 fact which is accidentally observed in several plants, and 

 which may affect all the organs. Thus, — 



1st. As concerns the Bracts, there is cultivated in 

 gardens a variety of the Pink, which some call Dianthus 



