81 
which ranged from fully rounded to truncate and to deeply 
notched. The unnotched lobes were either flat, smooth, or 
very cr led. hes 
characters of size and shape, many forms could be described, 
any one of which would idelade plants of widely different types 
Consent Cais was observed in the general habit of 
growth; some plants were more erect than others; some were 
Ti 
n” 
iatines a greater proportion of the lavender colors than was 
seen at the Serpentine Barrens. 
It ai at once occur to the reader that much of the variation 
n 
as is also a named frondosa which is of rather vigorous 
the Mendelian concepti unit character: very generally 
valid and that hybridization could not increase variability of the 
offspring with respect to a single character nt fo) e 
rents. Mutation was considered as a change in the organiza- 
