462 



BOTANICAL GAZETTE 



[DECEMBER 



C 



1 * 



*!* 



• . v 



/ 



* ' 



• 



w • 



1 



i 



# * 



- 



• I 



ultifid* 



lied 



7 . , „„, mmmpwi normal sporenngs sketched trom living maiej 



a-e, one-celled stage; f-i, two-celled stage; j and k, three-celled stage; /, four-ce 

 stage; m, five-celled stage; nucleus not recognizable in living material; the two 

 pigment spots associated with plastids are of maternal and paternal origin; the small 

 pigment spot introduced by the male gamete, the large one by the female gamete; the 

 plastid that bears the small red pigment spot has increased in size after its introduction 

 into the female gamete. 



