166 



Polyporaceae. 



6. Po/ystictus hydnoides Berk. 



Found on a tree-trunk washed ashore. 



7. Pycnosporus sanguineus Mum'// (Polystictus sanguineus Fries). 



A fungus of decaying wood, very common in Java *). Found 

 on a tree-trunk washed ashore. 



Polypodiaceae. 



8. Pteris vittata L, (In E r n s t's paper named Pt. longifolia L.) 



See p. 56, No. 5. 



In 1906 I saw this species on Verlaten Eiland but not on 

 Krakatao. 



9. Acrostichum aureum L- See p. 55, No. 4. 



In 1906 not seen by me, neither on Krakatao nor on Ver- 

 laten Eiland. 



Leguminosae. 



10. Caesaipinia crista L. (In E r n s t's paper named C. Bondu- 

 cella Flem.) See p. 155, footnote 2, 



Anacardiaceae. 



//. Sponclias mangifera Wilid, 



Tree, spread from West- to East-Java from the plains 

 up to an altitude of dt 600 m., especially growing in regions 

 where the east-monsoon is rather strong, on periodically dry 

 soils, often in teak-forests and along the inner borders of the 

 mangrove; it does not need a fertile soil. The reproduction 

 is effected by the rather large juicy drupes. The woody 

 kernel of these is provided with 5 much prominent longitu- 

 dinal ridges, the interstices between which are filled up 

 with a fibrous tissue; hence the kernels possess floating 

 power. The fruits are eaten by animals, i.a. bats. 

 In 1906 not found by me on Krakatao but I collected one young 

 specimen on the beach of Verlaten Eiland for which island the 

 species is not recorded by Ernst, 



1 ) A description and a fine coloured plate by Dr. C. van Overeem(~i~ 1927) 

 were published in De Tropische Natuur XIII (1924), p. 83. 



