48 



In my earlier investigations I lost much time in trying to 

 find on the trees of the Buitenzorg gardens what could not 

 be found. 



Gnetum Gnemon L. *) is cultivated largely in the kampongs 

 (native villages) around Buitenzorg but even there the female 

 trees are so evidently in the majority to the male ones , that 

 although a native collector of the Gardens (Pa-Idan) who is 

 well trained in such matters has brought me large quantities 

 of material, collected at most different times, one bottle with 

 material collected in the kampong Tji patat has furnished 

 nearly all the stages hereafter to be described, while all the 

 other bottles contained too small a percentage of fertilised 

 flowers to be of much use in embryological research. 



Without the valuable help of Dr. Th. Valeton, who con- 

 stantly superintended the collecting and who always most 

 readily responded to all demands (and frequent they were !) for 

 more material, as the investigation proceeded, this contribu- 

 tion could not have been written. 



I therefore beg Dr. Valeton to accept my sincerest thanks 

 for his invaluable help and wish to state that any points of 

 interest this contribution may contain a large share is due to 

 his untiring efforts in procuring the material. 



Tirtasari, the l^t Sept. 1898. 



1) The malayan name is »maniojo", the soundanese one »tangkil", 



