406 SEMI-CENTENNIAL OF TORREY BOTANICAL CLUB 
ferent plants. Such data for the main and for the successive 
fifteen branches of seven plants are presented in TABLE 30. For 
each plant the date of first blooming of any branch is considered 
as zero and all later blooming calculated from this. Observations 
are not complete for all branches, as indicated by the dashes. 
TABLE 3o 
RELATIVE DAY OF FIRST BLOOM FOR MAIN STEM AND I5 BRANCHES NUMBERED FROM 
P DOWN, FOR SEVEN PLANTS 
Plants тата | 3 | 4 | | uic b 7 
| Average 
B hes, starting fi 
FORI P ce DU Day of first bloom 
Main 
Lal 
оло © © © ҥн NURA Белал С HO 
№ 
© 
т 
2 
3 
4 
5 
6 
7 
8 
9 
IO 
II 
I2 
13 
14 
осыосонынм | нннносе 
| ллиьикьвооннн | н 
bpa Гюкфь | Ышы Тео | 
ФъъБъроононничо + 
Ut So eo womans o оо 
1 Звоонноннокшо 
15 
None lower observed | 
While the number of plants observed is not large, it is suf- 
ficient to show variations in the type of development and illus- 
trates the fact that there is considerable variation in the position 
of the branch that first comes into bloom and likewise in the rela- 
tive time in which branches similarly placed come into bloom. 
While it is generally one of the uppermost branches that blooms 
first, the general development of a plant with respect to size, 
number of branches, etc., may be such that, as seen in plant no. 7 
of TABLE 30, the roth, 11th and 12th branches from the top may 
bloom first. Тһе largest variability for branches of any one posi- 
tion is eleven days, seen in the first from the top, and the least 
is two days, exhibited by branches r3 and 14. 
In spite of these irregularities, it appears that for the average 
relative date of bloom for the different branches of individual 
plants there is little individual variability and that one may secure 
