Antirrhinum Ma jus Striatum. 135 
type. I have not yet observed this to happen by means 
of bud-variation. 
6. Antirrhinum ma/its lutciim does not arise from 
these striped and red races. 
7. If we compare the forms which we have been 
considering, 1 with the half races and middle races which 
we distinguished in 3, p. 18, we find that between the 
two constant elementary species (the systematic species, 
A. iiiajus and the systematic variety, A. majns luteum) 
there exist two intermediate forms which are perfectly 
distinct from these two, but not from one another. We 
can distinguish, 
o. The eversporting variety, A. ma jus luteum striatum, 
with striped flowers and a high degree of fluctuating 
variability, from which a faintly striped and a broadly 
striped race can be raised by selection. These three races 
however merge continuously into one another. 
b. The atavistic type in this race is uniformly red, but 
with incomplete inheritance and gives rise, when self- 
fertilized, in each generation to about 25% striped indi- 
viduals besides the red ones. 
In contrast with the previously described cases, the 
transition from the atavistic type to the eversporting 
variety and the reverse process here occur every year 
but always with a slight gap. The red type arises from 
the striped race by seeds and by buds, but the striped 
race has, hitherto, arisen from the atavistic type only by 
1 The mode of inheritance in the coarsely striped individuals will 
have to be more closely investigated ; so also must sectorial varia- 
tion. Moreover the experiment should be repeated with other striped 
varieties, and the spotted forms investigated to see if they behave in 
the same way. But it is most important that pure cultures of the 
various types should be made by breeding for several generations. 
For this purpose the tall varieties should be chosen preferably, since 
they promise a much better harvest than the half-dwarf ones which 
I employed in my experiment. 
