VOLUME LXXIII NUMBER 5 
THE 
BOTANICAL GAZETTE 
May 1922 
CYTOLOGY OF CHLOROPHYLL TYPES OF MAIZE 
L. F. RANDOLPH 
(WITH PLATES XI-XVI) 
Introduction 
During recent years there have been discovered a number of 
instances of chlorophyll inheritance which are characterized by 
features due to unusual modes of chlorophyll distribution and 
behavior. These phenomena are obviously of interest both to the 
geneticist and the cytologist; to the geneticist because some of 
them almost certainly represent distinct categories of inheritance, 
and to the cytologist because of the manner in which they involve 
the origin and behavior of cell organs other than the nucleus, 
which latter has been generally held to be mainly responsible for 
the transmission and development of inherited characters. Much 
attention has been devoted to this subject by geneticists, whereas 
the cytological aspects of the problem have not as yet received as 
much attention. It has been felt that a more adequate knowledge 
of the behavior of the visible constituents of the cell is of prime 
importance in the attempt to find a solution of the problem. The 
present study was undertaken for the purpose of determining 
whether or not there are in the cells of certain chlorophyll types 
of maize any visible structural differences which can be shown to 
be responsible for, or correlated with, the\kipwn genetic behavior 
of these plants. 
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