New York AGRICULTURAL EXPERIMENT STATION. 563 
proved to be utterly self-sterile. The stamens of one of this class, 
Oneida, have not been observed. Of the remaining thirty-nine 
varieties, nine have long stamens and thirty have short stamens. 
Eleven specimen vines, representing as many native species, 
were under observation. Three had long stamens and were self- 
fertile. Of the eight kinds which had short stamens three were 
self-sterile and the rest. were self-fertile, one kind producing clus- 
ters which, though loose, were sufficiently well developed to be 
classed as marketable. So far as known all cultivated grapes which 
can develop marketable clusters when self-fertilized have long 
stamens; nevertheless the fact that a variety has long stamens can- 
not be accepted as a sure indication that it is self-fertile. On the 
other hand the fact that a cultivated variety has short stamens may 
be taken as pretty sure evidence that it is self-sterile, either com- 
pletely or to such a degree that it cannot of itself produce marketa-. 
ble clusters of fruit. 
