134 



is feeble; elsewhere it is restricted to watersides. It prefers 

 a not too dark habitat and occurs mainly on river- and ravine- 

 sides, on forest-borders and especially in young secondary 

 forests; in dark primeval forests it is lacking. 



From a note of Dr. V a I e t o n it appears that numerous 

 rather young specimens of this tree were found, but it is not 

 clear on which side of the island. 



18. Ficus hirta Vahl. 



Hrect shrub, found in Java only in the western half between 

 15 and 600 m. above sea-level, as well in regions where the 

 east-monsoon is rather strong as where it is feeble. It occurs 

 in sunny or slightly shadowed localities in grassy wilds, in 

 jungles, in alang-fields and young Secondary forests. 



Zwarte Hoek. 



Urticaceae. 



19. Pipturus indinus Wedd. 



Small dioecious tree, spread throughout Java from the 

 plains up to 1200m. above sea-level, especially in regions 

 where the east-monsoon is feeble. Where the east-monsoon 

 is strong the tree is restricted to watersides or to localities 

 with a high watertable. It prefers a not too dark habitat, it 

 is found in grassy wilds and in jungles, in secondary forests, 

 on forest-borders and ravine-sides, in light parts of primeval 

 forests. The reproduction is effected exclusively by fruits 

 which, included in the thickened fleshy tops of the axes of 

 the inflorescence, form with them white spurious berries. 



Lauraceae. 



20. Cassytha fi/iformis L. See p. 91, No. 7. 



Leguminosae. 



21. Dcrris heteropliylla (Wilkl) Backer ( = D. uliginosa Bth). 



Creeping or twining shrub of the borders and the lighter 

 parts of the mangrove, mainly occurring in swampy locali- 

 ties and along or near river-mouths, often in numerous speci- 

 mens. On sandy beaches the plant is much more rare. The 

 reproduction is effected by the indehiscent pods, which are 

 provided with a thick light rind, hence possess floating power. 



On the eastern side. 



