The Bulletin 
17 
TABLE No. 2 
Sex Ratios Among Progeny When Hermaphrodite Flowers With Reflexed Stamens are 
Crossed With Staminate Flowers 
/ • h 
Female Parent 
Male Parent 
Number of 
Vines 
Staminate 
Number of 
Vines Her^ 
maphrodite 
With Reflexed 
Stamens 
Number of 
Vines Her¬ 
maphrodite 
With Upright 
Stamens 
Scuppernong_ __ 
Light Male, No. 1. 
11 
8 
0 
Scuppernong . _ _ _ 
Dark Male, No. l._ . 
329 
307 
. 0 
Scuppernong._ _ _. _ 
Light Male, No. 2. ._ 
507 
494 
0 
James_ __ _ 
Light Male, No. 2 ... 
59 
64 
0 
Thomas-.._ _ __ 
Light Male, No. 2 ... 
30 
33 
0 
James. _ _ . 
Light Male, No. 2_ 
169 
182 
0 
James _ . . __... _ 
Light Male, No. 1_ 
42 
36 
0 
James .. . . . _ 
Light Male, No. 2_ 
48 
39 
0 
Flowers . . . _ _ . 
Light Male, No. 2.. . 
103 
82 
0 
Thomas. _ _ _ 
Light Male, No. 2_ 
51 
38 
0 
Scuppernong.. _ . _- __ _ 
Dark Male, No. 3.. __ 
20 
25 
0 
James... _ _ _ . ._ _ 
Dark Male, No. 3._ .. 
9 
6 
0 
James. . 
Dark Male, No. 3.. 
21 
18 
0 
Thomas. . . . ... _ ... 
Dark Male, No. 3__ __ 
22 
17 
0 
Latham _ 
Light Male, No. 2_ 
3 
2 
0 
Thomas... _. . . __ .. .. 
Dark Male, No. 3._ . 
18 
10 
0 
Thomas _ . _ 
Light Male, No. 2_ 
15 
14 
0 
Memory ... 
Light Male, No. 2_ 
5 
6 
0 
Mish_ 
Light Male, No. 2.. _ 
2 
2 
0 
Mish_ 
Dark Male, No. 3__ _ 
1 
1 
0 
James_ _ _ __ . 
Light Male, No. 2. _ 
1 
0 
0 
James . _ .. 
Light Male, No. 2 .. 
0 
1 
0 
Scuppernong _ _ ... _ 
Light Male, No. 2_ 
4 
2 
0 
Scuppernong.. . _ _ 
Light Male, No. 2.. 
4 
2 
0 
Seedling... ._ 
Light Male_ 
35 
23 
0 
Totals_ _ . . __ 
1,509 
1,420 
0 
From the abcwe table we learn two things: (1) That whenever her¬ 
maphrodite flowers with reflexed stamens are crossed with staminate 
flowers, only two tpes of flowers are observed in the progeny, namely, 
staminate flowers and hermaphrodite flowers with reflexed stamens 
(Plate I, Fig. 1, and Plate 2, Figs. 1-3). Hot one seedling out of 2,929, 
representing the progeny of such a cross, has produced hermaphrodite 
flowers with upright stamens.* (2) That the ratio of the staminate 
flowers to the hermaphrodite flowers with the reflexed stamens is as 
1509 :1420 or 105 :1. 
The second point under consideration is a study of the progeny result¬ 
ing from hermaphrodite flowers with reflexed stamens when crossed with 
hermaphrodite flowers with upright stamens. 
In 1911 five branches of a Scuppernong vine were bagged and later 
cross-pollinated with pollen from Hope as the male parent. In the 
*Husmann and Hearing (4) report the finding of two fruit-bearing seedlings with upright 
stamens among the progeny of vines which bear the reflexed stamens when crossed with 
staminate vines. 
