1921] 



HARRIS PHASEOLUS 



157 



each. The results are shown in table I for green weight, table II 

 for dry weight, and in table III for the percentage of dry matter in 

 the primordial leaves. The data show that in the case of both 

 green and dry weight tissue production is invariably higher in the 



TABLE II 



VlEAN DRY WEIGHT PER PLANT AND PER LEAF IN SEEDLINGS OF A TETRACOTYLEDONOUS 

 RACE AND IN NORMAL PLANTS OF THE ANCESTRAL RACE 



