153 



3 /4 km. in length and less densely covered with plants yielded in 

 1906 more species than the beach on the south-eastern side which 

 was investigated over a length of at least 1 '/a km. in a northern 

 direction. Whilst at Zwarte Hoek 46 species were collected, we found 

 only 36 on the beach of the south-eastern side. These were : 



Cycadaceae. 



/. Cycas Rumphii Miq. (in Ernst's paper named C. circinalis L) 



See p. 130, No. 7. 



A female specimen of medium size (height 1,65 m.; cir- 

 cumference of the trunk 80 cm.) on the border of a Casuarina- 

 grove somewhat behind the flood-mark. In spite of diligent 

 searching we found no second specimen on the beach, but 

 as this species is not restricted to the beach but may occur 

 some kilometers remote from it, it is not quite impossible 

 that other specimens were present here or there in the lower 

 parts of the interior. 



Pandanaceae. 



2. Pandanus tectorius So/. (P. littoralis Jungh.) See p. 43, No. 4. 



Several specimens just behind the flood-mark. See the fine 

 picture in Ernst, Neue Flora Vulkaninsel Krakatao (1907), 

 tab. V. fig. 9. 



Gramineae. 



3. Ischaemum muticum L. See pp. 89 and 90. 



In many places on the beach. 



4. Spinifex littoreus Merr. (Sp. squarrosus L.). See pp. 89 and 90. 



In many places forming groups on the beach. 



Cyperaceae. 



5. Cypcrus pennatus Lmk. (In Ernst's paper named Cyperus 

 digitatus Roxb. and Mariscus umbellatus Vahl.). 



6. Fimbristylis spathaeea Roth. 



See for these two species p. 47, No. 5 and 6; p. 90 and 

 p. 91, No. 4 and 5. Both were found here and there on the 

 beach, especially on the older parts. 



7. Remirea maritima Aubl. See p. 47 and p. 132, No. 12. 



A few specimens on a young part of the beach. 



