The Inheritance of Fasciations. 
491 
stitutes a uniform group of individuals and only differs 
from constant races or true varieties by the extraordi- 
narily high degree of variability of its distinguishing 
character. 
This degree of variability relates not only to the 
degree of expansion of the axis, but also to the manner 
in which the anomaly is manifested. First we have to 
Fig. 106. 1'iola tricolor maxima, the garden pansy. A 
forked flower stalk arising from the axil of a double 
leaf (a, a) ; ^and^, the outer stipules; s , the inner un- 
split stipules of this leaf. The continuation of the main 
axis has been bent down laterally, 
distinguish between the split branches and the fasciated 
branches scnsu stricto. Split ears of the rye are some- 
times found in the fields (Fig. 104) and then preserved 
by the country folk. The axis of these ears may be 
divided once or oftener, the parts above the division 
being perfectly normal themselves. Or again the haulm 
