A CALENDAR OF SEED DISPERSAL 133 
Optional Study 5. A Calendar of Seed Dispersal 
This study is intended to follow the class work of Study 8 
(The November seed-crop, page 69), and to continue through 
the second half of the fall term. A dozen or more of the 
species of plants found at that time holding a full crop of seeds 
should be observed at least once a week during the remainder 
of the term. Thus, nature’s method of conserving the sup- 
ply, and of distributing it according to the needs of her popu- 
lation, may be seen. No great amount of time will be 
required if plants near to one’s daily route to and from work 
be chosen. A specimen of each kind of seeds, inclosed in a 
small envelope and labelled, may be handed in with the 
record of this study, if desired, for greater certainty of 
determinations. The observations may conveniently be 
recorded in a table prepared with the following column 
headings: 
Name (consult an instructor if you do not know the plant). 
Kind of plant (tall herb, low herb, vine, trailer, etc.). 
Seed cluster (illustrate by a simple diagram). 
manner (seeds lost singly, in pairs, in clusters, 
Seed etc.) 
dispersal | agency (wind, water, animals, plant auto- 
matism, etc.) 
seeds first out. 
Date of maximum dispersal 
final dispersal. 
Remarks 
An additional optional study may be allowed to any 
student who desires to acquaint himself further with the 
local trees, by repeating Study 9 as an individual exercise 
with an entirely new list of tree species. 
