DEVELOPMENT AND DISTRIBUTION OF LEGUMINOSA., 337 
Furthermore, a consideration of the families Composite, 
Hpacridez, Hricaceze, Coniferze, Goodeniacez, Casuarines, 
Rutacee, Proteacez, Candollaceze, and Rubiacez, reveals 
other remarkable and additional evidence, partly supple- 
mentary, but never contradictory, to that yielded by a study 
of Leguminosze and Myrtacez, the whole leading to the 
conclusion that the endemic vegetation of Australia has 
developed in that continent mainly as a result of the pres- 
ence there of large areas of barren sandy soil, and very 
variable, therefore inhospitable, climate, and partly as a 
result of its isolation and freedom from competition. This 
vegetation such as Eucalyptus, Hakea, Banksia, and 
Persoonia, has never migrated far from the old home. 
Bibliography.—The numbers against authors’ names in 
the text, and in the footnotes, refer to the bibliographical 
list at the end of the paper. 
Acknowledgments. 
From Mr. R. H. Cambage the names of Australian plants 
were learned in the field, and by him also the writer was 
led to perceive the great influence of soil and climate upon 
the Australian plants. Without knowledge such as this, 
the present paper could not have been prepared. Seedlings 
of various Acacias were also grown by Mr. Cambage to 
enable the writer to reach a satisfactory conclusion con- 
cerning the priority in age of the Uninerves or Pleurinerves 
among the phyllodineous members of the genus. 
To Mr. J. H. Maiden very cordial thanks are due for 
access, at all times, to the National Herbarium of Sydney, 
for permission, moreover, to use the unpublished Oensus of 
New South Wales Plants by Maiden and Betche, and also 
for helpful discussions on the Acacias described in his 
Forest Flora. The writer desires to call attention also to 
the great assistance derived in the preparation of this note 
V—November 4, 1914, 
