344 E. GC. ANDREWS. 
hold in the world of Podalyriez, South Africa holds a similar 
proud position with respect to Genisteze. Moreover, as 
with the Podalyriee of Australia, the South African endemic 
genera are very vigorous and aggressive and xerophytic in 
nature, flourishing alike in poor soils and severe climates. 
Whereas the Podalyries of South Africa comprises only 
two genera with thirty species, the Genistez of that region 
contains nineteen genera and nearly four huudred species. 
One genus alone, Aspalathus, has one hundred and fifty 
species. Thus the hardy South African Genistez takes the 
place of the vigorous Australian Podalyriez. 
Tropical Africa, Asia, America and Australia together 
(Australia, however, possesses only a few endemic tropical 
types) contain many endemic genera, bu’ these almost all 
conform to the average type of the Leguminose, and are 
not suggestive of the aggressive xerophytes of either Aus- 
tralia, South Africa, Temperate Hurasia, or some portions 
of America. 
Kurope, in the Northern Hemisphere, is well supplied 
with genera and species of xerophytic Genistez, as for 
example Ulex, Genista, Adenocarpus, and Cytisus. 
The Galegez and the related Hedysarese have a great 
development in the temperate regions of the Ncrthern 
Hemisphere. So also Viciesw, Trifoliesee, and Lotez, in 
common with the North Temperate Galegese, are almost 
absent from the Southern Hemisphere, except for a recent. 
spilling, or creeping, from Northern Asia along the Andes 
and the high tablelands in America by way of British 
Columbia and the surrounding regions. Thus Trifolium, 
Lupinus, Lathyrus, Vicia, and Astragalus are absent from 
New Zealand and Australia, besides being absent, appar- 
ently, from South Africa, with the exception of one: 
Astragalus and several species of Trifolium. Nevertheless 
these genera occur throughout the highlands from Cali- 
