30 



Annals of the South African Museum. 



8. The proportion of Monocotyledons to Dicotyledons is greater 

 in the Kalahari Region, than in the Eastern Mountain Region (viz. 

 1 : 3'28 and 1 : 2'03 respectively) though the actual number of species 

 is smaller. 



VI. THE SOUTH-EASTERN REGION. 



The Soutli-Easteru Region as denned by Bolus will require some 

 alteration, as he included in this region the whole of Natal and East 

 Griqualand, parts of which belong to the Eastern Mountain Region. 

 Bolus himself recognises this, as he notes " the (boundary) line should 

 keep to a contour of about 3500 ft. of altitude, above which the vege- 



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FIG. 4. Diagrams showing the differences between the predominance of the 

 twelve largest Orders in the following floras : I. Eastern Mountain Region. 

 II. Kalahari Region. III. " Kaffrarian Eegion." IV. Natal under 

 4000 ft. 1. Compositae. 2. Gramineae. 3. Liliaceae. 4. Leguminosae. 

 5. Orchidaceae. 6. Scrophulariaceae. 7. Cyperaceae. 8. Asclepiadaceae. 

 9. Amaryllidaceae. 10. Iridaceae. 11. Crassulaceae. 12. Labiatae. 



tation begins to assume the chai'acter of the steppes of the Kalahari 

 Region, but no such contour-line is marked on any map." I am at 

 present attempting to redefine the South -Eastern Region in the light 

 of what we now know of the Eastern Mountain Region. As yet mv 



* / 



results are incomplete, though I am led to favour the view of Thode* 

 that this region can be split up into three provinces. Marlothf 

 recognised the diversity of the floi-a when he mapped off a " South- 

 Eastern Coast Belt." A flora of East Griqualand, and of King 

 Williams Town, Komgha, Pondoland, Transkei, and Tembuland (the 

 latter group I shall now call the " Kaffrarian " flora) has been com- 

 piled for the sake of comparison with the Eastern Mountain Region. 

 The flora of East Griqualand presents problems Avhich make it 



* Thode, loc. cit. 

 t Marloth, loc. cit. 



