151 



J. L. Budd and N. E. Hansen state that "The tallest hybrids 

 showed the most marked modification in foliage. One hun- 

 dred and thirty-two of the plants showed marked variations, 

 many of them showing no rugosity of leaf, while others are 

 intermediate in foliage. Those following most nearly crenate, 

 while those of the hybrids showing no rugosity of leaf are 

 serrate. The rugosa leaflets vary in number from five to 

 nine, the usual number being seven, and a few of the points 

 of growth only five.- In some of the hybrids the usual 

 number is five, with an occasional leaf bearing seven, and 

 the leaflets average larger in size, Several of the hybrids 

 have ver}' small leaflets, and are dwarf in habit." 



The Rosa rugosa evidently exerted a prepotent in- 

 fluence and this has also been observed in other hybrid 

 roses, where the rugosa ovules were fertilized with other 

 pollen. The rugosity of the leaf is certainly marked in 

 many cases. 



We have on the college grounds a hybrid between 

 the Oldenburg apple \P. Malus) and P. Torringo-, 

 in which the character of leaf and flower are somewhat in- 

 termediate. The flowers of the hybrid are very much 

 smaller than those of the Oldenburg, but larger than those 

 of Torringo. The leaves are larger than those of Torringo, 

 but not so large as those of the Oldenburg. The fruit is 

 somewhat larger than that of P. Toringo with the peculiar 

 blush of the Oldenburg. 



Miss Sirrine, who made a mscroscopical examination of 

 the hybrid and the parents, found that the offspring had 

 many of the internal character of the parents, which sub- 

 stantiates the work of Macfarlane and others. 



Another interesting hybrid is the Soulard crab. This 

 was at first supposed to be a good species, but it has the 



