226 Transactions of the South African Philosophical Society. 





Cape 

 Peninsula. 



Sub-tropical Region 

 Natal (Wood). 



17. 



Umbelliferae 



17. 



MalvaceaB 



18. 



Eutaceae 



18. 



Crassulaceae 



19. 



Cruciferae 



19. 



Anacardiaceae 



20. 



Thymelaeaceae 



20. 



Umbelliferae 



^1. 



Polygalaceae 



21. 



Celastraceas 



22. 



Eosacese 



22. 



Geraniaceae 



23. 



Amaryllidaceae 



23. 



Cucurbitaceae 



24. 



Selaginac.eae 



21. 



Thymelaeaceae 



If the following list of the twelve largest genera of the Natal Flora 

 (which I take as fairly representative of that of the Sub-tropical 

 Eegion), be compared with that of the Peninsula, it will be seen how 

 considerably they differ : — 



Peninsula. Species. 



Erica 92 



Mesembrianth'm ... 61 



Aspalathus 50 



Disa 47 



Senecio , 40 



Ficinia 36 



Oxalis 32 



Pelargonium 30 



Crassula 29 



Helichrysum 29 



Eestio 29 



Gladiolus 24 



Natal. Species. 



Senecio 58 



Helichrysum 56 



Indigofera 42 



Cyperus 36 



Eulophia 30 



Crassula 28 



Ehus 26 



Gomphocarpus 26 



Panicum 26 



Ipomaea 24 



Hibiscus 21 



Habenaria 21 



Three genera only are identical in the list. The following will serve 

 ■to show still more vivid divergences. The first column shows 

 certain genera predominant in the Flora of the Peninsula, but wholly 

 wanting or much less numerous in Wood's Natal Catalogue ; the 

 second column shows predominant Natal genera similarly deficient 

 in the Cape Peninsula — 



C. Penins. Natal. 



Erica 92 13 



Mesembrianth'm 61 7 



Aspalathus 50 4 



Ficinia 36 3 



Oxalis 32 7 



Pelargonium 30 9 



Natal. C. Penins. 



Helichrysum 56 29 



Indigofera 42 16 



Cyperus 36 9 



Eulophia 30 2 



Asclepias (incl. 



Gomphocarpus) 27 3 



