266 



Further work on pollen formation in Ihis family is contemplated^ 

 material of quile a number of species, belonging to the main sub- 

 families, having been collected. 



Araceae, 



To the already known instances of successiv biparlition, two> 

 new ones are added: 



Microcasia pygmaea Becc. and 



Pothos spec. 



These new examples of bipartition are from sections of the family 

 in question from where we had no records before. 



Cyclanthaceae. 



No previous record of the pollen formation in this family seems, 

 as far as I know, to have been published. Hitherto I have been 

 able to investigate 



Carludovica macropoda Kurz. 



In view of the systematic position of this family it is certainly 

 of interest that a quite tj^pical successiv bipartition occurs in Car- 

 ludovica. 



