8 



one chews the pulp. The fruits produced in 1920 ranged from 

 7 to 18 thirty-seconds of an inch in diameter. They are of good size 

 for seedless sorts, but smaller than the fruits of the Concord, and 

 as shown in Plate III the bunches are well filled. 



A typical flower from one of these plants is shown in Fig. 6. The 

 stamens are unusually long, the anthers are well developed, and at 

 least 95 per cent of the pollen germinated in each of two tests on the 

 three strengths of sugar-agar media used. 



These plants bearing seedless grapes arc strongly male, but their 

 seedlessness is, it seems to me, due to what wc may properly call a 

 weak grade of femaleness. 



Figure 7 shows a flower of a plant bearing near-seedless or partially 

 seedless fruits. The stamens are erect and well developed tho 

 only of medium length. In tests for germination about 50 per cent 

 of the pollen produced tubes. As is the case in Fig. 6, pistils of good 

 size are present and from the appearance of the flower alone the plant 

 would be considered as a perfect hermaphrodite. However, of the 

 fruits examined, 27 were entirely seedless and ranged from 9 to 13 

 thirty-seconds of an inch in diameter; 8 fruits contained one soft 

 seed each and ranged from 12 to 16 thirty-seconds of an inch in 

 diameter; 52 fruits contained one well-developed seed each and 

 were from 12 to 18 thirty-seconds of an inch in diameter; while only 

 5 fruits contained as many as two seeds each and these were 14, 15, 

 16, 17, and 18 thirty-seconds of an inch in diameter, respectively. 

 The fruits are hence low in number of seeds, many are seedless, 

 and none of the 1920 crop had more than two seeds. The fruits were 

 of good quality and the bunches were uniformly well filled. 

 (See Plate IV.) 



This plant is a seedling from Triumph crossed with Delaware 

 both of which are seeded grapes. A sister seedling bore fruits 

 ranging from 15 to 19 thirty-seconds of an inch in diameter but none 

 were seedless, altho no fruit contained more than two seeds. 



A seedling derived from the cross Triumph x Dutchess has pro- 

 duced fruits ranging from 10 to 20 thirty-seconds of an inch in 

 diameter. Many of the smaller fruits are seedless and of those 

 examined none had more than two seeds. 



All of these plants bearing seedless or near-seedless fruits have 

 flowers with erect stamens with filaments of medium or long lengths 

 and pistils of medium size. Descriptive records of the Station for 



