158 



which are chiefly found in the Eastern part of Curasao. As a 

 specimen I choose 



The Hills near Blauw. 



On the almost bare ground stand widely scattered low small plants 

 of Evolvulus sericeus and Heliotropium hurnile, Aristida Swart- 

 ziana, Tragus racemosa, Paspalum glabrum, Sida procumbens. The 

 same sort of vegetation is found on 



The Hills near Davelaar. 



These are almost quite bare and show small complexes of some- 

 what higher Acacia villosa, Croton flavens and Caesalpinia coriaria, 

 but for the rest the only flora is formed by Bouteloua Humbold- 

 tiana and Aristida Swartziana, small plants of Jatropha gossypi- 

 folia, Evolvulus sericeus, Corchorus hirsutus, Tephrosia cinerea, 

 some Cereus plants, Sida procumbens and Diodia rigida. When 

 on these hills more Acacia tortuosa and some other shrubs deve- 

 lop, they are more overgrown. I mention as a specimen : 



The Hills near Malpais. 



Here is a rather dense shrub-growth of Croton flavens, Phyllan- 

 thus Euwensii, between which Cereus griseus and high shrubs of 

 Acacia tortuosa; especially Acacia villosa abounds here, while 

 Caesalpinia coriaria, Haematoxylon Brasiletto and a few Casearia 

 bonairensis belong to the higher forms with Bumelia obovata, 

 Randia aculeata and Myrtaceae; an occasional Guaiacum offlcinale 

 is also found on such grounds. 

 As a more central low hilly part we mention: 



The hills between Wacao and Dokterstuin. 

 The ground is covered with Chloris, Sida, Cassia glandulosa, Aristida 

 Swartziana, while also Krameria ixina occurs, and the following 

 shrubs, sometimes in dense masses : Acacia villosa, Beureria 

 succulenta, Croton flavens, Haematoxylon Brasiletto, Lantana 

 camara, Malpighia; amidst these more overgrown hills we see 

 again more bare ones, having a vegetation similar to that 

 described above. In some places it becomes an almost pure 

 Coccoloba diversifolia bush, in others Haematoxylon Brasiletto 

 prevails with Beureria succulenta, while occasionally also Ma- 

 chaonia Ottonis is frequent; Pithecolobum unguis-cati, Randia 

 aculeata and also Vitex umbrosa occur on the more densely 

 overgrown hills; in other places Cordia cylindrostachya is plen- 

 tiful, while Crescentia Cujete and Trichilia trifolia also occur 

 on these hills. Like elsewhere Cactaceae abound, athough they 

 are not so predominant here as in many parts of Bonaire. 



