28 



Annals of the South African Museum. 



Order. 



Ficoideae . 



Rubiaceae . 



Asclepiadaceae 



Loganiaceae 



Convolvulaceae 



Acaiithaceae 



Verbenaceae 



Amarautaceae 



Polygonaceae 



Euphorbiaceae 



Urticaceae 



Kalahari. Eastern Mountain Region 



No. of 

 species. 



18 

 20 

 51 



q 



> 



13 



8 



5 



6 



10 



9 



4 



The Capparicleae, Tiliaceae, Cucurbitaceae, Convolvulaceae, and 

 Acanthaceae are all characterestic Kalahari Orders, the rest occur 

 commonly in other parts of South Africa, but are better represented 

 in the Kalahari than in the Eastern Mountain Region. 



4. Orders well represented in the Eastern Mountain Region, but 

 poorly represented in the Kalahari : 



Orders. 

 Polvgalaceae 



t O 



G-erauiaceae 

 Crassulaceae 

 Umbelliferae 

 Ericaceae . 

 Orchidaceae 



Eastern Mountain Region. 

 No. of 

 genera. 



2 

 5 

 4 



11 



9 



AJ 



15 



Kalahari. 



All these Orders are characteristic both of the South-Western and 

 South-Eastern Regions. The large predominance of Ericaceae and 

 Orchidaceae stands out as the striking difference between the Eastern 

 Mountain Region and Kalahari floras. 



5. Predominant genera in the Kalahari compared with the same 

 genera in the Eastern Mountain Region : 



* E.M.R. (Eastern Mountain Region). K. (Kalahari Region). 



