646 REPORT OF THE HoRTICOLTURIST OF THE 
very imperfect. Prof. Munson holds® that in all species of Vitis 
wild vines having flowers with short, recurved stamens are 
incapable of setting fruit of themselves. 
While it would not be well to accept results of observations on 
but one hundred and sixteen varieties in one locality as conclu- 
sive for all varieties and localities, yet the observations are on a 
sufficiently, extensive scale to be valuable in indicating what re- 
sults may be expected from wider observations. ‘They indicate 
: that 
1. Only cultivated varieties of grapes having long stamens 
may be expected to fruit satisfactorily by themselves. 
2. Not all varieties with long stamens are able to fruit satis- 
factorily by themselves. 
3. Varieties having short or recurved stamens and other self- 
sterile sorts if grown at all ought to be intermingled with other 
vines that blossom at the same period. | 
4. Most of the varieties incapable of setting fruit of them- 
selves are hybrids. | 
5. Many hybrids are capable of setting fruit satisfactorily of 
themselves. 
6. The failure of grapes to set fruit of themselves, as far as 
may be determined from these investigations, is not for lack of 
pollination. Observations have been made on fifty-three of the 
fifty-four varieties which were noted as setting fruit of themselves 
unsatisfactorily, or not at all, and in every instance self-pollination 
occurred before the blossoms opened. 
7. Blossoms which are not incited to develop fruit by the action — 
of their own pollen may fruit satisfactorily when supplied with 
pollen of some other variety. This is shown not only by experi- 
ments where the blossoms of such varieties were hand pollinated 
with pollen from some other variety, but also by abundant evi- 
dence of their fruiting in mixed vineyards where they are exposed 
to the access of pollen from other varieties. Thus Barry, Eaton, 
Eldorado, Lindley, Brighton, Black Eagle, Gertner, Herbert, 
Merrimack, Salem and Wilder proved in these experiments utterly 
incapable of perfecting fruit when supplied only with their own 
8 Beach, 8. A.— Notes on Self-pollination of the Grape. Annual Report N. Y. Agri. Expt. - 
Station, Geneva, N. Y., 1892, p. 604, 
