462 
Syncotylous Races. 
(Fig. 92), and also in Chenopodium album, Thrincia 
hirta, etc. 
Between syncotyly and disturbances in the normal 
arrangement of leaves in the later life of a plant, there 
Fig. 93. Cannabis sat'rca. A, a seed- 
ling which unfolded its cotyledons 
in April, but up till June had formed 
no plumule ; B, another with two 
abnormally large and thick first 
leaves, the terminal bud of which 
underwent no further growth. Both 
are from a culture, in the remain- 
ing seedlings of which the length 
of the stem had become 10-20 centi- 
meters during the same time (1894). 
Fig. 94. Fagus sylvatica. 
Syncotylous seedling with 
much elongated epicotylous 
internode and abnormal 
development of the plu- 
mule. 
is a close connection, as there was in the case of tricotyly. 
Frequently this disturbance is only a small one (Fig. 94) ; 
but in species with a decussate arrangement of the leaves 
or at anv rate of the first leaves, there often follows on 
