Studies on the Variability and Heritability of Pigmentation in Oenothera. 349 
Table 7. 
O. rubrinervis, 2.6. September 28, 1907. 34 buds. 
o I 2 3 4 en ee 
x (4—5) 
x.4 | | x 
(2—3) | 
| | ies: x 
| ace | x 
| | | 3 
Bag | | 
x | x (4—5) 
xX. 4 (4—5) 
(4—)5 
x.4 (4—5)-8 
x | 
| x(3—4) | 
x(4—5) | | 
(2—3) . (3—4) | 
x | x | 
x(3—4).8| | | 
x | | | 
lon | 
(2—3) . (3—4) 
RE | 
(23). (3—4)- 8 | 
I | 
| x(3—4) 
(2—3) . (3—4) : 8 | 
| Ze (o)eur — u (C5) ama | I 
| 10 14 2.5 | 6.5 I 
10 14 10 
the Marine Biological Laboratory, Wood’s Hole, Mass. (six plants). 
This type produced no red on the rosette or stem leaves, and agreed 
with O. Lamarckiana in every particular except that, when they came 
into flower the buds showed the typical red color pattern of O. rubri- 
nervis. In nearly every case they belonged to type 5 (see plate VI) 
while a few were in 2 or 3 or 0, as is also usually the case with 
O. rubrinervis. The facts suggested that this might be a combination 
type, O. Lamarckiana rubrinervis but by growing the self-fertilized 
offspring of one individual in 1909, at the Missouri Botanical Garden, 
the fifty-four plants obtained, when in bloom, showed the whole range 
.of sepal color pattern conditions, some individuals having their mode 
