154 



Palmae. 



8. Cocos nucifera L. See p. 39, No. 3. 



A few specimens on a part of the beach which was 

 being washed away (See Ernst, Neue Flora Vulkaninsel 

 Krakatao (1907), p. 32, tab. V, fig. 8 ')). For other specimens, 

 see list C, No. 11. Here also many empty coco-nut shells 

 were found in the drift-zone. 



Casuarinaceae. 



9. Casuarina equisetifo/ia f-orst. See p. 91, No. 6. 



Numerous on the south-eastern angle, forming there a 

 rather large grove. According to Ernst the tallest speci- 

 mens were 1215 m. high, but I think they were rather 

 higher (up to at least 20 m.). Farther to the north this species 

 occurred in scattered specimens only. 



Lauraceae. 



10. Cassytha filiformis 1.. See p. 91, No. 7. 



Numerous, forming its webs as well in the Pes-caprae- 

 formation as over shrubs and low trees immediately behind 

 the flood-mark. Ernst's statement :! ) that this species, 

 together with other plants, formed ,,f6rmliche Dickichte" 

 along the borders of the gullies of the interior is incorrect. 



Hernandiaceae. 



//. Hernandia peltata Meissn. See p. 47, sub No. 4. 

 A few scattered specimens. 



Leguminosoe.. 



12. Sophora tomcntosa L. See p. 147, No. 21. 



A few scattered specimens. 



13. Indigotera zol/ingeriana Miq. (In Ernst's paper named 

 I. Teysmanni Miq). 



') Dr. S. Leefmans '"') the well-known Buitenzorg entomologist, who was among 

 the members of the congress who visited Krakatao in Oct. 1919, found on that occasion 

 atZwarte Hoek some specimens of Cocos nucifera which had been rather badly damaged 

 by Oryctes rhinoceros L., a beetle which is a serious pest to this palm in |ava and 

 Sumatra, killing many trees. According to Dr. Leefmans the leaves of the specimen 

 of Cocos nucifera figured on the above mentioned table of Ernst show injuries 

 distinctly pointing to Oryctt-s. Hence lie thinks it probable that in 1906, during Ernst's 

 visit, Oryctes was already present on the island.- If so, some of the trees found in 

 that year may afterwards have fallen victims to the beetle. 



2 ) S. Leefmans, Mededeelingen van het Instituut voor Plantenziekten (te Buiten- 

 zorg), No. 41, De Klappertor (Oryctes rhinoceros L), 1920, p. 53. 



3 ) Ernst, Neue Flora Vulkaninsel Krakatau (1907), p. 32. 



