DEVELOPMENT AND LIFE OF THE CORM 27 
were noted March 26. Thus the total period of germination 
covered nearly ten weeks. The total number of germinations 
was 86.6 per cent. of the number of seeds planted, and 20 per cent. 
of germinations were blind. 
These cultures were put outside until March 13 with the 
pots buried level with the surface of the soil. They were removed 
on March 13 to the greenhouse with an average temperature of 
70° F. The first leaves appeared April 3, and the last ones 
April 23, showing a germination period of twenty days. The 
number of germinations was 87 per cent. of that of the seeds 
planted, and of the germinations 19 per cent. were blind. 
C. These cultures were left in the greenhouse lobby at an 
average temperature of 50° F. until March 12, when they were 
placed in the greenhouse beside cultures A and B. The first 
leaves had appeared March 6, and the last ones appeared April 
23, thus giving a germination period of seven weeks, and a total 
germination of 82 per cent., 8.1 per cent. of which were blind. 
At this time it is desired to call attention to but three evident 
facts indicated by these germination tests, namely: that there is a 
considerable variation in the length of the quiescent period required 
by different seeds of this plant; that this period may be lengthened 
and the total germination period of a group shortened by repressing 
early germinating seeds through low temperature; and that the 
exposure of seeds to frost or freezing does not materially increase 
the total germination percentage or the percentage of blind 
germinations. 
Cultures have been made by using corms one, two, and three 
years old and subjected to conditions similar to those described for 
cultures from seeds. In general, the temperature differences pro- 
duced no effect other than to lengthen the dormant period when at 
or below 50° F. Corms have not been induced to begin growth 
before the first week in March, and but few before the last of 
March, with some notable exceptions now to be given. 
A group of one year corms was planted in the usual way on 
June 24, kept moist and left in a room with a temperature range 
from 55° to 80°. On July 11 a part of these corms had pushed 
normal trifoliate leaves above the soil. These grew until the 
middle of September. The corms were removed on October 31, 
