130 JOURNAL OF THE ROYAL HORtlCULTURAL SOCIETY. 



The tubers of these hybrids Lire white and smooth, with some 

 lenticels, and of good shape (fig. 63, a). One plant [No. 3] had seventy- 

 six tubers, and its stolons were nuich shorter than those of S. Goiu- 

 inersonii. Although most of the hybrids were growing in the open 

 garden until cut down by frost in November — they stood 5° or 6° P. 

 in October without harm — not tbe faintest trace of disease due to 



Phytophthora infestans was upon a single leaf of any of them, while 

 the haulms of every other sort of Potato growing in the neighbourhood 



small and close and scarcely visible, with long pedicels, while those on another 

 branch were pointed at the tip, with fairly large and visible spots and short 

 pedicels. Probably the round berries were formed before the plant was injured 

 and the others after. Unfortunately the plant, which was lifted from the open 

 ground and potted when full grown and in flower, formed no tubers in the 

 pot. The seeds, however, have been kept separate. 



