Eversporting Varieties. 25 
know it has not as yet arisen anywhere else. It consti- 
tutes an eversporting variety like a number of other 
double composites which are analogous to it; and arose 
in my experimental garden, not from the original species, 
but from a variety known in the trade as C. s. grandi- 
flonun, which forms a first step towards it in respect of 
the number of its tongue florets, and is therefore to be 
regarded as a half race. 1 
Let us now briefly summarize the foregoing dis- 
cussion : 
1. There exist both in the cultivated state and in 
nature a series of forms which are either not constant 
or highly variable, a state of affairs which is probably 
due to the interaction of two antagonistic characters. 
2. Of these two characters one is to be regarded as 
normal, that is to say, as belonging to the parent species ; 
the other as the abnormal. 
3. Where the former preponderates, teratological half 
races with their half curves are the result. 
4. If the two maintain an equilibrium, there are 
formed what I have called middle races, intermediate 
races, or eversporting varieties, of which many examples 
are to be found amongst garden varieties and "heritable" 
teratological races. 
5. The high degree of fluctuating variability of the 
eversporting variety, its occasional discovery in nature 
and in cultivation, and the possibility which it affords 
of the working up of striking novelties by means of iso- 
lation and selection, afford an explanation of the major- 
1 The numerous apices of the curves describing variation in the 
number of rays in composites, which have received no explanation 
so far, tend however to make the application of this conception diffi- 
cult 
See also the origin of Dahlia variabilis fistulosa in my cultures 
( ii, p. 100. 
