PROGRESS ].Y FLOWERS— POLLINAIIOX. 



29 



ncoiisly ill several places aliout the same time. Uf cource iti some cases the several 

 lilants that do this have been distributed from the same source, but this is not always 

 so. For the present -we may consider bud sports to be "reversions,'" or a backward 

 struggle towards nature's equilibrium. 



POLLIXATIOX. 



The practical art of 

 cross-fertilisation is quite 

 simple. Having carefully 

 selected both parents, you 

 have only to imitate the 

 bee or the tlies, that carry 

 the pollen of one flower to 

 the stigmas of another 

 nearly-related blossom on 

 another individual plant, 

 and there you are — success 

 or failure, you can do no 

 more for the time being. 



Take a single rose, for 

 example. In order to obtain 

 hybrids, you first of all 

 pull out all the authors of 

 the flower that is to bear 

 the seed as soon as the 

 petals expand, or even 

 before. This is to prevent 

 the flower being self-fer- 

 tilised before you apply the 



pollen of another species or variety of rose to the cluster of stigmas in the centre 

 of the flower. 



On the next page is an engraving of a sweetbriar showing the parts of the flower, 

 Fig. 20. By hybridising this species Avitli the Austrian copper rose. Lord Penzance 

 has raised a beautiful and fragrant race of hybrids within the last few years. Having 



Fig. 13. Calceolaeias : Past and PEEiExx. 

 .1, Calceolaria arachnoidic, 1823 ; I?, calceolaria, good variety of tlie year 

 1841; C, calceolaria, improved type, 1860; I\ size of Antliiirium Scliertz- 

 erianiim in I860 ; size in 1890, (J inches by 4i lo 5 inches, the result of 

 selection and cultivation. 



