Pterocelastrus variabilis (7; per cent.), Gonioma Kamassy (15} per 
cent.), Virgilia capensis. Others do not occur so frequently. - In 
one patch at the Knysna aurea saligna is found. The under- 
storey of shrub growth consists principally ot 7'richocladus crinitus 
and numerous ferns, especially the beautiful tree-fern, Hemitelia 
capensis. Of the trees mentioned, Ucotea bullata has somewhat 
discontinuous distribution in the coast districts of South Africa, 
capensis 18 south-western and stops at Van Stadens, near Port 
Elizabeth. Platylophus trifoliatus does not reach the Uape Penin- 
sula in the west and also does not extend beyond Van Stadens. 
Thus there is a certain amount of endemism: but on the whole we 
recognise that these forest patches—like the forest patches further 
east—are distinctly outliers of the Tropical African. forest flora. 
In a sense they are intruders. which cannot be utilised to form 
primary phytogeographical divisions. They are found only where 
the configuration of the country and other circumstances favour a 
greater rainfall than is found in neighbouring parts and where 
the plants are protected from drying winds, although all these 
forest trees are slightly xerophytic. It is, therefore, not likely 
that the South African forests, even in our narrow coast districts, 
had ever a wider-distribution as long as climatic conditions were 
approximately what they are now, although the discontinuous dis- 
tribution of some. trees, shrubs and other forest plants seems to 
point in the opposite direction, and although we know that since 
the advent of man much forest growth has been destroyed. I have 
already referred to the discontinuous distribution of Ocotea bullata 
and Faurea. ew more examples may be quoted. Pygeum 
africanum occurs at Bluekrantz, near the Knysna, and is not found 
again in an easterly direction until we come to the neighbourhood 
of King Williamstown, a distance of about 250 miles. Strelitzia 
25 years or so, how 1 
which allows a definite supply to be drawn from certain sections, 
