400 SEMI-CENTENNIAL OF TORREY BOTANICAL CLUB 
with the behavior reported above for general performance of 
terminal and laterals. However, minor differences were present, so 
the performances of no two plants were identical in detail. This 
may be shown by data for one other plant as given in TABLE 25. 
Here the laterals came into bloom much sooner and a few terminals 
appeared very late in the season. 
We may now consider the relative performance of different 
branches of a plant. 
For the plant reported in TABLE 24, the first head to bloom was 
situated on the lateral branch that was sixth in rank from the top. 
On the following day a head opened on each of branches no. 4, 5, 
and 7; on the next day heads opened on 1, 2, 3, 8, and 9; on the 
following day heads bloomed on the main terminal branch and 
on 10-16. No data were collected on the 4th and 5th, but on the 
6th, or eight days after first bloom, all the main and all the lateral 
branches of the plant had produced at least one flower head. 
In general the performance of each branch is quite like that 
of the plant asa whole. Terminals come into bloom first, laterals 
continue to bloom later than terminals, the average flower number 
per head decreases as the season advances. A comparison of the 
performance of different branches, however, shows that the averages 
of the first flower heads on most branches are not decidedly dif- 
ferent, which means that the rate of decrease in average number 
per head for a plant as a whole is usually less during the first part 
of the season while the different branches are coming into bloom 
than it is later when all branches have come into flower and most 
of the first terminals have bloomed. 
Individual differences for the various branches in the relative 
time of blooming are in evidence and constitute a factor contri- 
buting to the rate of decrease as determined. For the plant re- 
ported in TABLE 25 eleven days elapsed before all the main branches 
werein bloom. Some irregularity was also seen in that the seventh 
and ninth branches started bloom with higher values per head 
(19) than were realized in the first heads to bloom on branches 
I, 2,4, 5, and 6. Such a performance influences Ше actual curve 
of average flower number and rate of change for the plant as a 
whole, giving for the first few days an actual increase in the average. 
The relative average performance of each branch and the 
