132 



Gramineae. 



8. Saccharum spontaneum L. See pp. 1 00 seq. 



Numerous at Zwarte Hoek. In the letter mentioned above 

 Valeton speaks of ,,endless glagah". But he may have 

 got that impression as well on the eastern side. 



9. Ischaemum muticum L, See p. 89. 



Zwarte Hoek. 



10. Spinifex littoreus Merr. See p. 89. 



Cyperaceae. 



//. Cyperus pcnnoliiK Lamk. See p. 47, No. 5; p. 90. 

 Zwarte Hoek. 



12. Remirea maritime Aubl. 



A few data about this herb 1 ) were already given on p. 47. 

 The spikelets are united into a kind of head at the top of the culm. 

 The small fruits when falling off remain enclosed within a few glumes, 

 of which especially the topmost one consists of a thick corky floating 

 tissue. The plant is spread from West- to East-Java; it is one of 

 the first immigrants establishing on young beach-walls. 



On the east-side of the island. 



Orchidaceae. 



13. Spathoglottis plicata Bl. See p. 107. 



Casuarinaceae. 



14. Casuan'na equisetifolia Forst. See p. 91, No, 6. 



Zwarte Hoek. 



Ulmaceae. 



15. Trema orientate Bl. (inclusive of Tr. amboinense Bl.). 



Fast growing tree, sometimes bearing nitrogen-tubercles 

 on its roots, spread throughout Java from the plains up to 

 an altitude of 2400 m. It thrives as well in jungles and 

 secondary forests as in primeval woods, as well on poor 

 soils as on rich ones and is especially in the mountainous 

 regions one of the first species appearing in fields and 



') A reproduction of a drawing is printed in De Tropische Natuur VIII (1919), 

 p. 9, fig. 15. 



