157 



Malvaceae. 



23. Hibiscus ti/iacens L. See p. 93, No. 11. 



Here and there immediately behind the floodmark. 



Guttiferae. 



24. Ca/ophyllum inophyl/um L. See p. 44, No. 6. 



Several scattered specimens. See also list C, No. 19a. 



Lecythidaceae. 



25. Barringtonia asiatica Kurz. See p. 43, No. 5. 



Several scattered specimens. See also list C, 19 b. 



Combretaceae. 



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



Several scattered specimens. 



Convolvulaceae. 



27. Ipomoea denticulata Chois. 



Twining or creeping and then copiously rooting, rather 

 slender herb, not reaching a great height, occurring in Java 

 especially in the western half, exclusively on sandy beaches 

 and the localities close to these. The reproduction is effected 

 by the seeds which possess floating power. 



Several specimens especially near the south-eastern point 

 of the island. 



28. Ipomoea Jongif/ora R. Br. (1. grandiflora Lmk.; in Ernst's 



paper under the name of Calonyction asperum Chois.). 



Twining herb of the Barringtonia- and /^es-caprae-formations 

 especially in West-Java of common occurrence. The repro- 

 duction is effected by the fruits, which are enclosed within 

 the calyx which, after the anthesis, becomes much enlarged 

 and secerns slimy water on its inner side 1 ). Each capsule 

 contains 14 seeds; the bifid cotyledons enclose between 

 their curved halves a rather large air-cavity. Hence the seeds 

 possess floating power; not rarely they are found washed 

 ashore. Ouppy found them in the drift-zone of the Keeling 

 islands and observed that the seeds of fruits which had been 



*) This species was not yet mentioned by Nils Svedelius in his paper: Ueber das 

 postflorale Wachstum der Kelchblatter einiger Convolvulaceen (Flora XCVI (1906 

 p. 231 seq.l. 



