380 BOTANICAL GAZETTE [MAY 
first few weeks after being planted out in the boxes. Most, if not 
all, of these must have been ochracea, and the percentage of 20 for 
this mutant, found in August during the period of flowering, must 
have been far too small. For this reason it is put in parentheses, 
and the next year I tried to get a more reliable counting. 
The seedlings of five self-fertilized plants of 1914 were planted 
out in boxes as carefully as possible, and before any essential loss 
a ‘ 
A pf pan ae 
GE, : 
Pj, Pie 
bs 
Ne FY 
% 
Fic. 1 Fic. 2 
Fics. 1, 2.—Fig. 1, Oenothera grandiflora Ait. from Castleberry, Alabama; and 
to right, O. grandiflora mut. ochracea, August 1915; fig. 2, O. grandiflora mut. lorea, 
August 1915. 
was noted. They were kept in the greenhouse and counted out at 
the end of April. At that time some few were dead and decayed; 
others were dead but could still be judged. Since I had observed 
the boxes almost daily, it had been ascertained that it was always 
the pale ones which died, whereas the green seedlings grew without 
trouble. Thus I was confident that the dead had been ochracea, as 
well as the surviving pale ones. The number of the decayed was 
