290 Phytogeographical. 



dilanthus tithyraaloides, Dactyloctenium aegyptium, Aristida 

 americana. 



St. Eustatius. 



This vegetation is formed here by the following plants: Pedilan 

 thus tithymaloides, Fourcroya gigantea, Opuntia spinosissima, 

 Lochnera rosea, Croton flavens, Jacquinia armillaris, Erythalisfru 

 ticosa, Melocactus communis, Opuntia triacantha, Opuntia Tuna, 

 Opuntia Ficus indica, Jacquinia armillaris, Conocarpus erecta, 

 Acacia macracantha, Tecomaleucoxylon, Dactyloctenium aegyptium 

 Pappophorum alopecuroideum. Euphorbia articulata, Eragrostis 

 ciliaris, Aristida americana, Pectis humusa. Ernodea littoralis and 

 Strumpfia maritima are to be seen on the White Wall only. 



Saba and St. Martin. 



Whereas the plants occurring on the rocky parts of these Islands 

 do not differ from those on St. Eustatius this vegetation needs 

 no further description. 



I will only mention that Jacquinia armillaris has not been seen 

 on Saba. The following summary of the plants found on the small 

 Islands Green Island, Green Key and Tintamarre may give an 

 idea of the vegetation there. 

 On Green Island I collected the following plants: 

 Euphorbia articulata, Coccoloba uvifera, Tecoma leucoxylon. Ma- 

 riscus brizaeus, Opuntia Funa. 



On Green Key I collected the following plants: Euphorbia buxi- 

 folia, Portulaca halimoides, Lantana involucrata, Croton flavens. 

 Acacia Farnesiana, Beloperone eustachiana, Lithophila muscoides, 

 Tournefortia gnaphalodes, Batis maritima, Hippomane mancinella, 

 Opuntia Ficus indica, Melocactus communis, Coccoloba uvifera. 

 The vegetation is a mixture of Croton- and Littoralvegetation. 

 The Island of Tintamarre that partly is used for cultivation of Cot- 

 ton and consists also out of limestone I saw the following plants : 

 Mariscus brizaeus, Guajacum otflcinale, Evolvulus argyraeus, Helio- 

 tropium microphyllum, Borrichia arborescens, Jacquemontia pen- 

 tantha, Desmanthus depressus, Fagara flava, Panicum prostratum, 

 Beureria succulenta, Tournefortia volubilis, Plumiera alba, Pedi- 

 lanthes tithymaloides, Bignonia ungius-cati, Hippomane mancinella, 

 Puauwoliia Lamarckii, Melochia tomentosa, Croton flavens, Croton 

 betulinus, Amarantus polygonoides, Cenchrus tribuloides, Pappo- 

 phorum alopecuroideum, Sesuvium portulacastrum, Erithalis fruti- 



