114 
Atavism. 
a way that those on one side of a spike are uniform and 
those on the other striped. 1 Flowers which are inserted 
at the boundaries of the two regions exhibit on one side 
the color of one sector and on the other half, the stripes 
of the other. A diagram of such a branch is shown in 
Fig. 18 in which the flowers Nos. 1, 4, 6, 9, and 11 are 
dark blue, Nos. 2, 5, 7, 10, 12, and 13 pale red with scat- 
Fig. 18. Delphinium Consolida stria- 
turn plenum. Diagram of a branch 
of which the left half was blue, 
and of which the right bore flowers 
with fine blue stripes on a pale red 
background. 1899. 
Fig. 19. A sectorial flower 
of the same variety. The 
whole right half was dark 
blue ; the left, pale red 
with scattered blue stripes. 
tered blue stripes, and Nos. 3 and 8 half blue and half 
striped. I obtained this branch in my culture of 1899; 
similar cases are not at all rare. Branches with nothing 
but blue flowers also occur, but the seeds obtained from 
the self-fertilization of such flowers gave rise in my gar- 
den to the striped variety and not to a pure blue progeny. 
1 Exactly the same phenomenon is seen in the seedcoats of Pi sum. 
The minute purple spotting characteristic of some green-skinned 
varieties sometimes takes the form of a deep uniform purple. These 
uniformly purple seeds produce the ordinary form with small purple 
spots and no more full purples than are usually produced. (Trans- 
lator's Note.") 
