239 



Dioscoreaceae. 



26 (60). Dioscorea spec. 



None of the Javanese species of this genus is a littoral 

 plant, though D. bulbifera L. sometimes though rarely may 

 be found on sandy beaches. This species is reproduced by 

 its winged seeds and by axillary bulbils which easily fall off 

 after having reached a somewhat large size. On the beach of 

 one of the coral islands near Batavia Kamerling ') found 

 a living bulbil of a species of Dioscorea washed ashore. 



A specimen of some species of Dioscorea was collected 

 in the Casuarina equisetifolia forest near the beach. 



Orchidaceae. 



27 (73). Spathoglottis plicate /)!. See p. 107 and 5 and 16. 



A/o littoral plant. As appears from the Dutch text, collected 

 ,,near the sea". 



Casuarinaceae. 



28 (7). Casuarina cquisctifo/ia L. See p. 01, No. 6 and ^ 4 



herebefore. 



On the south-eastern side. 



Urticaceae. 



29 (49). Pipturus incanus WedJ. See p. 134, No. 19 and 5 



and 15 herebefore. 



A/o littoral plant. As appears from the Dutch text, collected 

 in the wood of Casuarina equisetifolia near the sea. As 

 appears from 5 herebefore the species was found in 1919 

 not only near the sea but also at some distance from it in 

 a dry water-channel. 



Aristolochiaceae, 



30 (3). Aristo/ochia taga/a Cham. 



Twiner spread throughout Java from the plains up to an 

 altitude of 800 m. in brushwood and secondary forests, always 

 in scattered specimens though sometimes locally not rare. 

 The reproduction is effected by the winged seeds, which 

 may be easily spread by water and perhaps over some 

 small distance over land also by wind. 



l ) Natuurkundig Tijdschrift Ned -Indie LXXXI (1921), p. 31. 



