470 
Selective Elimination in Staphylea 
Standard Deviations. 
First, let us deal with absolute variabilities. The standard deviations for the 
number of ovules per locule in the three collections are given in Tables I — III, 
and are compared in Table VIII. 
TABLE VIII. 
Comparison of Standard Deviations of Number of Ovules per Locule 
in the three Series. 
B-A 
C— B 
C— A 
Number 
Shrub 
Difference 
.„ 
— Lj. 
Difference 
Diff 
Difference 
Diff 
and 
E diff. 
and 
and 
Probable Error 
Probable Error 
E diff. 
Probable Error 
E diff. 
11 
•098+ -024 
4-04 
•088+^028 
3-14 
•186f026 
7^09 
12 
•069+ -037 
1-87 
- •196+ -035 
5^61 
- ^127+ •OSS 
3^79 
13 
- •232 + -037 
6^19 
•291 + mo 
9^54 
•059 + ^042 
1-40 
H 
■159 ±-046 
3-46 
- •166+ ^043 
3 83 
- ^007 ± •038 
•17 
15 
- -156+ -032 
1-75 
•049 + ^032 
l-bQ 
- -006 + •OSS 
•20 
16 
•073+ -041 
1-18 
- ^177 + •OSS 
4^63 
- ^104+ ^037 
2-84 
17 
- •001 + -034 
r78 
•204+ ^037 
5^50 
•143+^038 
373 
18 
•197 ±-037 
5^31 
- •152+^032 
4^68 
•046 + ^035 
r32 
19 
• •057+^041 
1-50 
- ^304+ ^036 
8^45 
- ^247 + -033 
7-44 
20 
- ^110+ ^041 
2^67 
- ^205 + ^033 
6^22 
-•315+ •OS? 
8-50 
21 
- •185 + •ose 
5^18 
•051 + -025 
2^02 
- •134+^036 
3^76 
- ^092 + ^035 
2'62 
-•129+^026 
4^97 
- ^221 + -031 
7^22 
23 
- ^097 + ^042 
2-28 
•056+^039 
1-42 
- ^041 ± ^042 
•97 
21, 
•059+^045 
rsi 
- -234 + -038 
6^20 
- ^175+ •OS? 
4^71 
25 
- ^065 + ^054 
r2i 
•800+ •064 
12^51 
•734+^070 
10^55 
26 
•039 ±^047 
•81 
- ^214+ ^040 
5^31 
- • 175 + -039 
4 '49 
27 
■065 + -042 
1^53 
- -272+ ^035 
7^74 
- ^207 + •ose 
5^75 
29 
•092+ ^032 
2^86 
-•072+ •OSS 
2-20 
•020+ -031 
•66 
30 
•101 + ^030 
3 32 
- ■094± ^029 
3^24 
•007 + ^028 
•25 
31 
•050±^031 
r57 
- •OSS + -osi 
2^69 
- •OSS + -030 
Pll 
82 
•015+^032 
•47 
-•074±^027 
2^72 
- -0591 •OSI 
1-93 
33 
•008 + •ose 
•23 
- •OSI + ^034 
2-42 
- ^073 + •OSS 
2^23 
3k 
•198+^044 
4^67 
- -296 + •ose 
8-lS 
- ^097 + •OSS 
2^54 
35 
-•184+ -025 
7^23 
•021 ± ^022 
•96 
- ^163+ -026 
6 33 
37 
- ^246 + ^046 
5^37 
- ^025 + ^040 
•62 
-•271+^045 
5^98 
38 
•020+ ^026 
•78 
•240 ± •OSI 
7^74 
•260+ •OSI 
8^47 
39 
•031 + ^035 
•90 
•044 ±-028 
r56 
•075 + •ose 
2^12 
40 
- •010+^039 
•25 
- •154fOSl 
4^9 J 
-•163+^036 
4-53 
The differences are taken in the same way as for the average number of ovules 
per locule, i.e. B — A, C — B, and C — A. If selection tends to reduce variability 
the negative sign should predominate in the differences ; if selection tends to 
increase variability the differences with the positive sign should be the more 
frequent. 
To render the comparisons more critical, the probable errors of the standard 
deviations and the probable errors of their differences have been tabled. The ratio 
of the difference to its probable error is also given in the same manner as for the 
means. 
