1924] 
HARRIS—1HE INFLORESCENCE OF MANFREDA VIRGINICA 413 
9. Number of seeds per locule (s). 
The symbols in parentheses are those used to designate the 
Several characters in the formulae. 
The heavy work of counting the number of seeds per locule was 
carried out in only 1100 inflorescences or 18774 locules. Number 
of flowers and number of capsules was determined in a larger 
number of inflorescences, 3425 in all. 
For convenience of reference the series of material are desig- 
nated as follows:— 
I. Three hundred inflorescences, Meramec Highlands, 1906. 
Seeds counted. 
II. Two hundred fifty inflorescences, below Jefferson Bar- 
racks, 1906. Seeds counted. 
III. One thousand inflorescences, below Jefferson Barracks, 
1906. Flowers and fruits only counted. 
IV. Three hundred inflorescences, Meramec Highlands, 1907. 
Seeds counted. 
V. Three hundred five inflorescences, Meramec Highlands, 
1907. Flowers and fruits only counted. 
VI. Two hundred fifty inflorescences, below Jefferson Bar- 
racks, 1907. Seeds counted. 
VII. One thousand twenty inflorescences, below Jefferson 
Barracks, 1907. Flowers and fruits only counted. 
In studies involving only the number of flowers and number of 
fruits per inflorescence series II and III can be treated together; 
series IV can be combined with series V; and series VI added to 
Series VII for the purpose of securing larger and smoother dis- 
tributions. In respect to these characters series IV and V and 
series VI and VII should show only the differences due to random 
sampling, since practically all the material for each of the pairs 
was taken at one time and a subsample was drawn at random for 
the seed countings. 
The lot of material from the Jefferson Barracks locality for 1907 
is not strictly comparable with that for 1906 in one respect. The 
Plants from which the countings of the number of seeds per locule 
were made in 1906 were collected all along the bluffs from J ef- 
ferson Barracks to a point above Cliff Cave. In 1907 the material 
from which the countings of seed number were made was taken 
