Variegated Leaves. 
289 
stance, the highest numbers (not to mention the numer- 
ous smaller ones) that I found amongst the seedlings of 
individual seed-parents were as folows : 
Antirrhinum majits 
Clarkia pulchella 
Papaver Rhoeas 
Polygonum Fagopyrum 
Scrophularia nodosa 
Tri folium incarnatum 
Ch rysa n th em u m segetu in 
Linaria vulgaris 
Trifolium pratense 
Oenothera Lamarckiana 
YELLOW OR WHITE SEEDLINGS 
5-6 % 
9-13 " 
15-30 " 
8-12 " 
10-15 " 
4-6 " 
13 " 
25 " 
13 " 
20 " 
In many other species I have, as yet, found not more 
than one or two per cent of yellow seedlings from the 
seeds of individual parents. Therefore I presume that 
this extreme variation is 
brought about, besides by 
the heritable potentiality, 
by causes similar to those 
in operation amongst the 
variants in the small 
seeds of Trifolium incar- 
natum (p. 239). 
In some cases, as for 
instance Pol\gonuui Fa- 
go py nun and Tri folium 
incarnatum it struck me 
that the higher numbers 
O.I. 3 6 9 12 15 18 21 24 
Fig. 55. Papaver rupifragum. Pro- 
portion of yellow seedlings among 
the seeds of 54 green plants. These 
plants themselves were the off- 
spring of a single green parent 
plant. The two first ordinates 
are slightly reduced. The figures 
3, 6, 9, etc., signify 2-4, 5-7, 8-10% 
yellow seedlings and so forth. 
were more frequent than 
some of the lower ones. 
This was especially the 
case in Papai'cr rupifragum, amongst the offspring of a 
single parent plant. This plant was selected as being a 
