1924 
HARRIS—THE INFLORESCENCE OF MANFREDA VIRGINICA 433 
seeds matured, and relatively high frequencies on the lower 
numbers of seeds per locule, whereas that taken at Meramec High- 
lands shows a relatively low mode on 0 seeds matured with а 
shift of the mode to а much higher seed number than in the 
Jefferson Barracks series. 
To carry these comparisons somewhat further, and to prepare 
for more detailed consideration of the nature of these frequency 
distributions, we may consider the simpler statistical constants 
in table хіп for number of seeds per locule and in table xtv for 
TABLE XIV 
STATISTICAL CONSTANTS FOR NUMBER OF SEEDS PER FRUIT 
1 Coefficient of 
Беліне x Мел deviation variation 
boe Highlands 
ы 1906 em er д 2017| 41.3123+.2748| 18.3094--.1944| 44.31954 .5548 
ace ands 
72: 1907 (ТУ). lu qe 1729| 38.3820--.2947| 18.19312-.2085| 47.3991-- .6539 
efferson Barracks 
J 1 BD. ui 1120| 30.9027--.4063| 20.14172-.2872| 65.1777 2-1.2631 
efferson Barracks 
OD is bod 32.8426-+.3165 | 17.4688--.2240| 53.1893+ .8545 
Dl between 
two Азап (1906 — 
Мегате h- 
lan e зан ..| — | + 2.9294-+.4029 | +0.1163 2-.2851| — 3.0796-- .8575 
JeffersonBarracks| — | — 1.9399 2.5150 | +2.6729+.3642| 4- 11.9884 2-1.5250 
Differences between 
two x ts 
. H. —J. B. 
ЕЖЕН; — 10.4096 .4905 | —1.8323 4-.3468 | —20.8582 +1.3796 
ЗЕ sn — I + 5.5403 +.4825 ee ae — 5.7902+1.0760 
number of seeds per fruit. The differences between the constants 
for the 2 years in the same habitat and between the constants for 
the 2 habitats in the same year also appear in these tables. 
The means and standard deviations will be used in calculating 
the coefficients of correlation set forth in the following paragraphs. 
The conspicuous feature of the tables is the large size of the coef- 
ficients of variation. It is unnecessary in this place to bring 
together the many coefficients of variation for number of seeds per 
locule or per fruit which have been published in the literature, or 
to do more than to say that they are generally large. 
