NOGENESIS IN THALICTRUM PURPURAS- 
CENS. 
IONS FROM THE HULL BOTANICAL LABORATORY. 
XXXV. 
JAMES BERTKAM OVERTON. 
(WITH PLATES XII-XIII) 
: INTRODUCTORY. 
‘ll known experiments of Loeb in inducing by artifi- 
the segmentation of the unfertilized eggs of some 
animals, and the formation of embryos, suggested 
riments with the eggs of plants. Experiments ob 
have been made upon lower plants, but the eggs of 
ants do not lend themselves readily to experiment. — ne 
as concluded to make the attempt with some — 
t seemed best to select a dioecious plant, an and one Ae 
biting parthenogenesis. The clue was fu nished © 
y David F. Day at the Buffalo meeting of he 
tion for the Advancement of Science in 189 
: ng Sh T Pendlieri was sent host eon Gu 
> May it flowered and proved to be pistillate. About the 
illate Caria This seems to = a clear iobt 
- does not get a similar habit. 
