'112 TWENtY-FIR^'i' RErORl\ 



S. In exceptional cases the hybiicls discussed in {(>) may at maturity 

 have type-like foliage rather than Kabbit-Ear foliage, although the pods resem- 

 ble pods of the latter. (Confirmatiou of Batesou and Pellew, 1915.) 



9. The hybrid rogues in succeeding generations behave genetically the 

 same as do rogues which arise dc novo from type plants. There is apparently 

 no segregation during sporogenesis of the factors which diffenentiate the type 

 from the rogue plants. (Confirmation of Bateson and Pellew, 1915.) 



10. In the same cross in which we do not have Rabbit-Ear characters 

 segregating in a Mendelian manner we may have other characters such as 

 shape of pod, color and surface of seeds, etc., segregating according to expec- 

 tancy. (Bateson and Pellew, 1915.) 



11. Although not definitely proved, there is some evidence that rogues 

 when crossed with typical plants of varieties that do not produce Rabbit-Ear 

 rogues show a segregation in regard to width of stipule in the F^ and follow- 

 ing generations. 



12. Intermediates having a large propoi'tion of rogues in their offspring 

 as compared with the number of type plants, produce more of the rogues from 

 the upper part of the plant than from the lower part of the parent plant. 

 There is no regularity in the distribution of the rogue offspring from different 

 parts of intermediate plants which throw a small percentage of rogue plants. 

 (Bateson and Pellew, 1915.) 



13. Rogues are not produced from either kind of intermediate plants witli 

 such regularity that a definite ratio of rogue to type plants can be demon- 

 strated. (Confirmation of Bateson and Pellew, 1915.) 



14. The rogues are not comparable in appearance, so far as the present 

 author knows, to any existing form of poa. They are certaiidy not comparable 

 to any the author has seen growing, although about 250 American and f(>reign 

 varieties of poas have been under observation at one time or another. 



15. No difference has been foTuul in the number of (•hromos<inios in the 

 type and rogue i)lants, the number being 14 in both. (Confirmation of Bateson 

 and Pellew, 191.5.) 



IG. When any intervarietal cross is made between typo an<l rogue plants 

 belonging to any varieties tliat throw rogues, the results are the same, in regard 

 to the rogue characters, as if (lie rogues were crossed with type plants of the 

 variety within which the rogue arises. (Confirmation of Bateson and Pel- 

 lew, 1915.) 



17. Rabbit-Ear rogues wossed with Ral>bit-Ear rogues give oidy rogues 

 in the Fj and succeeding generations. (Confirmation of Bateson and Pel- 

 lew, 1915.) 



The author wishes to acknowledge his indebterlness to Professor Bartlett 

 for generous aid and valuable criticism. 



University of Michigan. 



