1919] 



Frost: Mutation in MatthioJa 



113 



Table 19 



1911, field; plants transplanted from greenhouse. Time from sowing to 



emergence of earliest corolla. Singles. 



* This parent-lot value does not applv to lot 26, which consists of progeny of 

 WG9-C10 itself. 



Table 20 

 Same as table 19, for doubles flowering by August 1. 



" Only 48 more doubles altogether flowered by November 3, and 25 of these 

 were in the even-numbered lots 20 to 28. 



