Production of Double Flowers 489 



a known origin, however. Without any doubt 

 many of them have been found in a wild state 

 and were introduced into culture. On the other 

 hand double flowers are exceedingly rare in the 

 wild state, and even a slight indication of a ten- 

 dency towards doubling, the stray petaloid 

 stamens are only rarely observed growing wild. 

 In cultivation, however, double flowers are of 

 frequent occurrence; hence the conclusion that 

 they have been produced in gardens and nur- 

 series more frequently than perhaps any other 

 type of variety. 



In the beginning of my experimental work I 

 cherished the hope of being able to produce a 

 white variety. My experiments, however, have 

 not been successful, and so I have given them 

 up temporarily. Much better chances for a 

 new double variety seemed to exist, and my en- 

 deavors in this direction have finally been 

 crowned with success. 



For this reason I propose to deal now with 

 the production of double flowers, to inquire 

 what is on record about them in horticultural 

 literature, and to give a full description of the 

 origin thereof in an instance which it was my 

 good fortune to observe in my garden. 



Of course the historical part is only a hasty 

 survey of the question and will only give such 

 evidence as may enable us to get an idea of the 



