228 
In the third and last chapter, | will try to give a con- 
clusion, based on a mutual comparison of these different 
seeds and ovules. 
The material I used. Ï received partially from the Bota- 
nical Gardens of Lisbon, Rome and Buitenzorg, for which 
Ï desire to express my gratitude to the directors of those 
institutes. À thankful use Ï was enabled to make from a 
collection of dried seeds, present in the Botanical Labo- 
ratorium in Groningen. 
Finely several specimens Î could collect in the Hortus 
Botanicus of the fast mentioned University. 
