149 



3'/2/o solution of NaCI. C u p p y *) found that only half 

 of the seeds examined by him possessed floating power. 

 Hillebrand 2 ) ascribes to the plant viscous seeds and 

 fruits, which may adhere to the feathers of birds. But 

 already many years ago G u p p y :! ) quite rightly observed 

 that only the unripe fruits are sticky. None of the many 

 hundreds of ripe fruits of this species which I saw during 

 the last twenty years on the beaches of Java was in the 

 least viscous, neither are the seeds sticky. Therefore I 

 cannot in the least agree with the statement of Docters 

 van Leeuwen '*), that this plant may be spread also by 

 animals, to which statement in the Dutch text the erroneous 

 explanation is added ,,viscous seeds". 



Two forms of this polymorphous species occur in Java, a pubes- 

 cent arboreous one, growing in the eastern half of the island between 

 750 and 2750 m. above sea-level and a glabrous shrubby one spread 

 from West- to East-Java on the beach. Of this last form a few 

 specimens were found on young parts of the beach. 



Malvaceae. 



29. Hibiscus tiliaceus L. See p. 93, No. 11. 



A few young specimens on the littoral plain. 



Guttiferae. 



30. Calophyllum inophy/lum L. See p. 44, No. 6. 



A few young specimens on the littoral plain. 



Lecythidaceae. 



31. Barringtonia asiatica Kurz (B. speciosa Forst.). See p. 43, 

 No. 5. 



Several very young specimens on the younger parts of 

 the beach. 



Combretaceae. 



32. Terminalia catappa L. See p. 39, No. 2. 



A few young specimens. 



') G u p p y, Observations of a Naturalist in the Pacific between 1896 and 1899, II 

 (1906), 339. 



2 ) Hillebrand, Flora of the Hawaiian Islands (1888). 



3 ) G u p p y, Observations of a Naturalist in the Pacific between 1896 and 1899, II 

 (1906), 340. 



4) Docters van Leeuwen in Handelingen Eerste Natuurwetenschappelijk 

 Congres (1920), p. 60; in Ann. lard. Bot. Buitenzorg XXXI (1921), p. 129, 



