no 



rent ways: either a whole leaf is traDsformed, or only its apex, 

 or in the third place parts of a leaf springing from the surface 

 take the shape of pitchers as e. g. in monstrous cabbage leaves. 



In the present case we have to do with n*^ 2, a differentiat- 

 ion of the apex. In fig. 13a, which shows the upper surface, 

 it is the margins of the apex which turn towards each other 

 so as to constitute the very beginning of a pitcher. There is 

 a striking resemblance with Trifolium repens ') in this and all 

 subsequent stages. In b and c, representing the leaves viewed 

 from the bach, the development has gone further and the mid- 

 rib of the leaf is distinctly seen to disengage itself from the 

 foliole. 



That the outer side of the cup shows the colour of the 

 back of the leaflet and its innerside has the colour of the 

 upper surface confirms, if necessary, our conception. 



There is one difference with Trifolium : in Aegle the trans- 

 formed apex is always very small compared with the leaflet 

 from which it has been taken, whereas in Trifolium the foliole 

 after losing its cupshaped apex grows smaller and smaller 

 finally to disappear altogether. 



ANACARDIACEAE. 



Mangifera indica L. Mangga dramajoe. 



Coll. Dr. J. J. S. „at the door." 



Habitat tropical Asia. 



A seed having germinated within the fruit. (Fig. 14). 



From this seed taken out of a perfectly fresh fruit the radicle 

 has already broken out and in ascending from the base, has 

 grown out beyond the top. Also the plimmle has disengaged 

 itself and is to be seen close to the radicle. Besides plumule 

 and radicle there is an additional root, also ascending and then 

 sharply curving back. This root is not in any connection with 

 the axis but springs from one of the cotyledons. Miqu el already 

 said in his characteristics of Mangifera: radicula infera ad- 

 scendens, hand raro accessoriis aucta. 



i) Bot. Jaarboek Dodonaea IV Jrg. 1892, p. 13. 



