THE GRAPE 365 



V. vulpina or cordifolia in fact, I have worked 

 more or less with nearly or quite all the North 

 American species and many of the hybrids pro- 

 duced by Mr. Munson and others. 



Seeds of the tuberous grape of Mexico have 

 been sent me several times. It seems to require 

 a thoroughly well-drained soil and a very warm 

 climate. 



The first two lots of seeds received were fail- 

 ures on account of being placed in irrigated soil 

 which was not suitable to them. 



Some of the third lot of seeds were placed in 

 sandy, well-drained soil, and made large vigor- 

 ous vines the first season. They somewhat re- 

 semble the Muscat of Alexandria in foliage and 

 growth and have rather large, sweet potatolike 

 roots. However, our winter climate did not suit 

 them and these also died, so I have made no fur- 

 ther attempt at raising them. 



These Mexican tuberous grapes are said to 

 produce a fine fruit in large clusters, much re- 

 sembling the Muscat of Alexandria. 



VARIATIONS IN SEEDLINGS OF A BUD SPORT 



My constant effort to take advantage of any 

 disturbance in the heredity of a species or vari- 

 ety is justified strikingly in working with the 

 grape. 



