VI. EXPERIMENTAL OBSERVATION OF THE 

 ORIGIN OF VARIETIES. 



§ i8. THE ORIGIN OF CHRYSANTHEMUM SEGETUM. 



PLENUM. 

 (See Plate II.) 



The double corn marigold constitutes a new variety 

 which has recently arisen in my cultures. It has never 

 occurred before. Chrysanthcuium scgctiun is, of course, 

 a favorite annual garden plant, and so is a variety of it 

 called C. scgctum grandiflonnn. A form called C. scgc- 

 titrin Gloria is announced amongst this year's novelties } 

 its flowers are said to attain a diameter of 10 centimeters, 

 but it is not double. If a double form ever had appeared, 

 it would without any doubt have been put on the market 

 as a noteworthy improvement, even as the double vari- 

 eties of Chrysantlicinum inodonun and other composites 

 are so widely grown. 



My ''conquest," as the breeders of hyacinths in Haar- 

 lem call their novelties, is the counterpart of the well- 

 known CJirysanthcniuni inodoruin plciiissiinwn. It is 

 inferior to it in the matter of color, inasmuch as white 

 flowers are always in greater favor than }'ellow ones. 

 The doubling of the heads of composites is never so 

 perfect that tubular florets are completely absent from 

 all inflorescences. Nevertheless it frequenth' looks as if 

 this were so (Fig. 28) ; but if we look a little closer we 



^ Seed-catalogue of Haage and Schmidt in Erfurt, tqoo. 



