93 



9. Vigna marina Merr. (named by Penzig Vigna lutea D. C. 



and V. luteola D. C.). See p. 89. 



The reproduction of this herb takes place exclusively by 

 seeds. The black pods burst open when ripe and then or 

 shortly afterwards let escape the seeds. The cotyledons 

 of quite ripe seeds include between them '') an air-cavity 

 by the presence of which the seeds possess floating power. 



Euphorbiaceae. 



10. Euphorbia atoto Forsf. (See p. 90). 



The reproduction of this plant is brought about by seeds 

 which are flung away the moment the capsules burst. With 

 ripe seeds the embryo does not entirely fill up the testa -); 

 in consequence they possess floating power. In a 3'/o% 

 solution of NaCl they remained floating for 4 a 5 days '). 



Malvaceae. 



//. Hibiscus ti/iaceus L. 



A tree which is frequent in the /jJcj/T/ngfo/j/cj-formation; the 

 spontaneous reproduction is effected by seeds. Because 

 of the embryo not entirely filling up the testa ''), the seeds 

 possess floating power. 



Lecythidacaceae. 



72. Barringtonia asiatica Kurz (B. speciosa Forst.). See p. 43, No. 5. 



Combretaceae. 



13. Terminal/a cotoppa /.. See p. 39, No. 2. 



Apocynaceae. 



14. Cerbera manglias L, (Cerbera odollam Caertn.). See p. 46, No. 3. 



Convolvulaceae. 



15. Ipomoea pes caprae Sw. See p. 48, No. 7 and p. 89. 



Rubiaceae. 



76. Morinda citrifolia L. 



A small tree, frequent in the /3cj/T/V?gro/)/<3-formation. The 

 reproduction is effected exclusively by fruits, which possess 



!) Sc him per, Indo-Malayische Strandflora (1801), pp. 103, 104. 



2 ) Schimper, Indo-Malayisclie Strandflora (1891), p. 103. 



3 ) Sc him per, Indo-Malayische Strandflora (1891), p. 165. 



4 ) Schimper, Indo-Malayische Strandflora (1891,), pp. 163, 105. 



