Neo-Mendelism 51 



Before leaving the general topic of blending inherit- 

 ance a statement should be made concerning "particu- 

 late inheritance," which means that in certain crosses 

 something happens causing unblended fragments of 

 both parental characters to appear in the hybrid progeny, 

 resulting in that patchwork of parental characters called 

 a "mosaic." This is not true blending inheritance, but 

 has been named by Galton "particulate inheritance." 

 A common illustration is that of a variegated Amaran- 

 thus, whose leaves show an irregular mosaic of white and 

 green. This is produced by crossing pure white and 

 pure green strains of Amaranthus. 



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2. BuRBANK, Luther, Another mode of species forming. Ann. 

 Report Amer. Breeders Assoc. 5:40-43. 1909. 



3. CoRRENS, C, Die neuen Vererbungsgesetze. Berlin. 191 2. 



4. Coulter, Castle, Davenport, East, and Tower, Heredity 

 and Eugenics. Chicago. 191 2. 



S- East, E. M., The r61e of hybridization in plant breeding. Pop. 

 Sci. Monthly 77:342-355- figs. 12. 1910- 



6. Emerson, R. A., and East, E. M., Inheritance of quantitative 

 characters in maize. Bull. Agric. Exper. Sta. Nebr. no. 2. 

 pp. 120. figs. 21. 1913. 



7. Jeffrey, E. C, Spore conditions in hybrids and the mutation 

 hypothesis of De Vries. Bot. Gaz. 58:322-336. pis. 22-25. 

 1914. 



