IN THE TROPICS. 
389 
Number. 
Character 
of F a Seed. 
F â 
Seeds born on F 2 Plant. 
Constitution 
of Parent 
f 2 . 
sm. y. 
sm. g. 
wr. y. 
wr. g. 
. 5 
sm. g. 
_ 
20 
2 
9 
Aab 
.6 
. -— 
30 
— ' 
— 
Ab 
.7 
' — 
29 
— 
13 
Aab 
.8 
wr. y. 
' — 
— 
18 
2 
aBb 
.9 
— 
— 
51 
— 
aB 
.10 
99 
— 
— 
79 
21 
aBb 
.11 
99 
' - 
— 
3! 
18 
1 ab!(d) 
034.2.1 
sm. y. 
41 
11 
10 
3 
AaBb 
. 2 
99 
7 
3 
2 
AaBb 
.3 
99 
25 
6 
5 
6 
AaBb 
.4 
99 
15 
7 
-: 
— 
ABb 
.5 
99 
12 
8 
7 
2 
AaBb 
.6 
y 9 
19 
6 
— 
— 
ABb 
.7 
sm. g. 
— 
53 
— . 
20 
Aab 
.8 
wr. y. 
— 
— 
29 
9 
aBb 
' Summing up as in the previous case, we have :— 
Mendelian constitution of Parent. 
Parent Seed. 
AaBb. 
AaB. 
Aab. 
ABb. | 
aBb. 
AB. 
Ab. ! 
aB. 
ab. 
Total. 
Sm. y. 
12 
5 1 
i 
8 
— 
2 
JWj- 
27 
Sm g. 
(1) 
— 
9 
— 1 
-S' 
3 
1 — 
lllll 
13 
Wr. y. 
(1) 
(1) 
—, 
: S" 
6 
| 
— 
3 
(1) 
12 
Wr. g. 
2 
2 
Total • • 
14 
6 
CO 
00 
6 
2 
3 
3 
54 
Four unconformable cases appear, namely :— 
(а) 1 seed sown as sm. g. gave rise to all four types. 
(б) 1 seed sown as wr. y. gave rise to all four types. 
(c) 1 seed sown as wr. y. gave rise to sm. y. and wr. y. seeds. 
(d) 1 seed sown as wr. y. gave rise to wr. g. seeds only. 
(b), (c), and ( d) may be accounted for as in the previous instance. 
Case (a) remains, and in this instance I am inclined to believe that 
the plant may have been mistaken in gathering ; and this is the more 
likely because sm. g. came next to sm. y. in my system of sowing, so 
that if germination took place very obliquely it is possible that the 
seedling may have come up on the wrong side of the partition 
dividing these groups. 
8(9)05 
( 5 ) 
