‘ 
THE EASTER LILY IN NORTHERN CLIMATES. 5 
the varieties Multiflorum and Harrisii. The progenies with which 
work has been done recently have as their basis selfed plants, 1. e., 
those produced from the pollen of a plant used on its own stigma 
instead of on the stigma of another plant of the same or a different 
variety. Subsequently, cross-pollinations of plants in the same lots 
have been practiced for the most part. 
Commonly, but not always, the set of seed in selfed plants is small 
as compared with that obtained when two plants of the same variety 
or of different varieties have been crossed. 
Fic, 2.—A crop of Waster lily seed being produced in a greenhouse. 
LONGEVITY OF THE SEED. 
There is but little information as to the length of time that the 
seed of the Easter lily will remain viable after it is harvested. Ex- 
perience has shown that if planted as soon as it is gathered it takes 
about twice as long to germinate as when held and planted 6 months 
later. Perfect germination has occurred when the seed was 18 
months old. This shows that perfect results may be expected from 
seed held over to the second year. Whether seed can be safely held 
longer is not known. All the seed worked with in these investiga- 
tions was stored in paper sacks in the packing shed of an ordinary 
greenhouse. 
