— 335 



melia pinguin and large Acrostichum aureum as a scattered under- 

 vegetation on the otherwise bare soil, which on the other hand houses 

 numerous land-crabs which are the cause of the numerous holes 

 and mole-like heaps scattered over the whole. Here and there 

 some groups of Conocarpiis are growing, and further towards the west 

 where the ground is more sandy some cocos-palm and a Terminalia 

 forest make their appearance. 



A quite similar area occurs on St. Jan on both sides of 

 "America Hill" in "Cinnamon Bay" and "Maho Bay" (fig. 20) and 

 is covered with a rather similar vegetation, Anona palustris also 

 occurring here. >, 



Fig. 23. Bucida Bticeras L. Anatomy of leaf, a, transverse section; scleren- 

 chyma-cells are seen between the palisade-cells, b, epidermis of the upper 

 surface, c, epidermis of the underside, d, horizontal section of palisade-cells 



with sclerenchyma-cell. (F. B. del.) 



As I have not given the anatomy of the leaf of i^wao^a Buceras in 

 my previous paper and as it is also not mentioned by Warming 

 in "Halofyt-Studier", I may here give a short description of it 

 (fig. 23). 



The leaf is dorsiventral. The epidermis of the upperside {b) 

 has large cells with a rather thick cuticula but without stomata; 

 seen from the surface the cells are rounded-polygonal with some- 

 what undulated walls. 



The palisade-tissue consists of one layer of long cylindrical cells. 



The spongy-parenchyma has in transverse section rounded- 

 polygonal cells, in horizontal section they appear to be more star- 

 shaped. 



The epidermis of the underside (c) has smaller and lower cells 



16* 



