80 Reduplication Series in Siveet Peas 



The four families consisted of hooded plants only and were not of the 

 pure E. H. strain. One small family however was raised from a cross 

 between a blue round and a red long in the E. H. strain. The F.^ 

 ('11, 43) consisted of 8 blue long, 3 blue round, and 5 red long and 

 there is little doubt that if larger numbers were available the series 

 would resemble that just dealt with. 



(2) The relation between B and E in families homozygous 



for L or I. 



(a) Nature of mating BE x be. 



25 families have been raised from plants of this type of mating 

 and as is shewn in Table III the distribution of the four classes 

 among the 2712 plants accords well with the view that the gametic 

 series is 127BE : IBe : IbE : 127be. All the plants were homozygous 

 in L. 



(yS) Nature of mating Be x bE. 



Many of the families in which this form of mating occurred were 

 also heterozygous in pollen, and these will be found recorded in 

 Table VI. The result however was the same throughout. No red 

 hooded plant was ever found, and the other three classes occur approxi- 

 mately in the ratio 2 blue erect : 1 blue hood : 1 red erect. The total 

 numbers (including those in Table VI) are 



Blue erect Blue hood Red erect 



2969 1379 1441 



This result points to the Be and bE types of gamete being con- 

 siderably more numerous than the other two, and it is not incompatible 

 with the view that the series is IBE : 127Be : 127bE : Ibe. But as 

 only one hooded red is to be looked for in 65,536 plants it is not pro- 

 posed to investigate this particular case any further. 



(3) The relation between E and L in plants homozygous 

 for B or b. 



(a) Nature of mating EL x el. 



At present there are no records of such a cross though a number of 

 such families are expected in 1914. 



(y8) Nature of mating El x eL. 



Four such families were raised in 1908 and as is shewn in Table IV 



