94 BOTANICAL GAZETTE [FEBRUARY 
was called on this account mut. subulata. There were also 7 plants 
(nos. 13-16, 19, 20, and 22) which developed very dows and 
were retained in the expectation that they might prove to be 
dwarfs, although there was no character but size to distinguish 
ES Spee g 
Fic. 6.—F;, progeny of Oenothera pratincola, Lexington C, pan 2; the only muta- 
tion shown is Lexington C-11, mut. nummularia; the other plants are typical. 
them from typical sister plants. The solitary plant of mut. 
subulata died, but the type has since been found to be one of the 
most frequent mutations of O. pratincola. ‘The type represented by 
nos. 7 and 12 was designated as mut. pusilla. Its rosettes were 
about 4cm. in diameter at maturity. The stem leaves were 
