86 BOTANICAL GAZETTE [JULY 
A related formation of higher growth is the “macchia,” which in some 
regions succeeds the heath. In it the Ericaceae become less abundant with the 
increase in size of the woody plants, but such genera as Protea and Rhus have 
more representatives, while associated with them are species of Olea, Celastrus, 
Leucadendron, and many other genera. 
On the southeastern slopes facing the Indian Ocean, the greater summer 
rainfall produces a mesophytic forest, often dominated by Podocarpus or by. 
Rhus longifolia and Albizzia fastigiata. 
Grassland, much of it interspersed with scattered trees or shrubs, known 
variously as Acacia veld, Protea veld, or bush veld, extends through much of 
Natal, Transvaal, and Rhodesia. The tree veld becomes increasingly arid 
toward the west and includes much of Great Namaqualand and Damaraland. 
Northward the vegetation becomes more luxuriant, passing to rich grasslands 
with large trees of the baobab, Adansonia digitata, and of Copaifera mopane 
in Angola. 
In dry river valleys of Natal and elsewhere, a rather rich scrub formation 
is found, characterized by tree species of Euphorbia, Aloe, and Mesembry- 
anthemum, and succulent or semisucculent lianas, in addition to the more 
woody shrubs and trees. 
Finally, there is the Karroo with a rainfall of 8-35 cm., and a vegetation 
of dwarf shrubs, leaf and stem succulents, bulbous plants, a few grasses, and 
some annuals. Bews is inclined to class this with the grassland rather than 
with the desert. He finds, in fact, that there is little true desert in South 
Africa, the so-called “Kalahari desert” also being more truly veld or grass- 
land.—Geo, D. FuLLER. 
fethace uf flsmel ou feuita:—-Slawtewrt han eudliod te Glee of the teow = 
rot fungus upon the chemical composition of the peach, and CULPEPPER, 
Foster, and C. ( x6 } — imilar but more complete study of the 
T a ae th te «Oe 
