1913.] PUBLIC DOCUMENT — No. 31. 189 



In Tables 3 and 4 arc given onr resnlts of crossing pink with 

 wliite-llovvered varieties, tlie division into two tables being 

 siinj)lv for convenience in arrangement. A striking thing 

 shown in this table is the excess of white-flowered i)lants in 

 the crosses involving Golden-eyed Wax. This occnrs in all 

 cases except in the F2 generation of the cross with Prolific Black 

 Wax. It is seen also in crosses with light pink-flowered sorts, 

 especially with Giant Stringless in Table 1, also in crosses with 

 Bine Pod Bntter in Table 5. The total nnmber of hybrid plants 

 from crosses of Golden-eyed Wax with pigmented flowered varia- 

 tions is 1,053, of which 407 are white-flowered, while the ex- 

 pectation of one-fonrth of the total nnmber is 2G2. This is a 

 proportion of 1.59 :f instead of 3:1. This departnre from ex- 

 pectation is probably dne to a correlation between blossom color 

 and seed-coat colors or color patterns. Another thing that calls 

 for explanation is the occnrrence of light pink flowers in 

 the second generations in Table 4. These appear in a ma- 

 jority of the crosses bnt not in all of them. There can be little 

 reason to donbt that nearly all, at least, of these classifications 

 of blossom color are correct, for onr policy has been not to record 

 a departnre from expectation in any case of donbt, bnt only 

 where the nnexpected character is reasonably typical. As pre- 

 vionsly explained, these two color types are quite distinct. It 

 may be observed that White Marrow gives peculiar resnlts here 

 as in crosses already discussed. It is probable that the appear- 

 ance of the light pink blossoms in these crosses is connected 

 with the pigmentation of the seed-coat, and may be explained 

 by a study of the seed-coat color. Wliite Marrow evidently 

 carries several factors modifying pigmentation both of seed- 

 coat and blossom. 



