[Vor. 11 
422 ANNALS OF THE MISSOURI BOTANICAL GARDEN 
form very smooth distributions. In all, a conspicuous skewness, 
a tendency to tail off in the direction of the larger number of 
fruits, is а characteristic feature. 
The physical constants for number of fruits per inflorescence 
are shown for all the series in table v. 
The first question concerning the statistical constants of both 
flowers and fruits which requires consideration is that of the dif- 
ference between the means of the series for the different years in 
the same habitat and for the different habitats. Тһе comparisons 
may be based upon the combination series in so far as these are 
TABLE V 
STATISTICAL CONSTANTS FOR NUMBER OF FRUITS PER INFLORESCENCE 
Series N iss Standard Coefficient of 
deviation variation 
Meramec Highlands 1906 
САТА ыл ee SE 300| 6.7233 2-.1134 | 2.9109 -.0802 | 43.2958 21.3980 
Meramee Highlands 1907 
ҰЗ ғалыс 300) 5.79002-.1073 | 2.7554--.0759 | 47.5900--1.5798 
Meramec Highlands 1907 
EPOD ЮЗ deli is .| 305| 6.0623--.1297 |3.3593--.0917 | 55.4123 3-1.9226 
Meramec Highlands 1907 
ШУРУ S ыры 605| 5.9273--.0843 13.0777 2-.0596 | 51.9247 1.2490 
erson Barracks 1906 
Ны 5-2 250) 4.4800--.1076 | 2.5222-Һ-.0761 | 56.2995 +2.1704 
Jefferson Barracks 1906 
Ig олуу уз A 1000| 5.36102-.1143 | 2.6162-+.0808 | 48.8012--0.8941 
efferson mes 1906 
rdi Dial. 1250} 5.1848 -.0500 | 2.6215-.0353 | 50.5611 +0.8378 
rson Barracks 1907 * 
jai lt pA р 250) 5.5680--.1156 | 2.7095+.0817 | 48.6619-Ь1.781 
Jefferson Barracks 1907 
1) Sae DA RECS 1020| 6.4059 2-.0701 |3.3237 4-.0496 | 51.8852--0.9608 
Jefferson Barracks 1907 е 
ОПУ)". т... 70 624000611 [3.2208-.0492151744208579 
ТАВІЕ УІ 
COMPARISON OF THE p eie CONSTANTS FOR THE 2 DIFFERENT 
YEARS FOR PLANTS GROWING IN THE SAME HABITAT — — 
Difference Standard Coefficient of 
1906 less 1907 жезге deviation variation 
Meramec a eens 
EUER 22. +2.0029+..4074 | —0.2097 +.2882 | —2. m4 n7 
па a +0.7960--.1413 | —0.1668-+.0999 | —8.6289=18/2_ 
Jefferson Barracks 
қал... —3.04102-.2186 | —1.86762-.1545 —3.55634-0.6807 
Уны e SS —1.05612-.0790 | —0.60782-.0558 | —1.18312E 9-97" 
