DEVELOPMENT AND DISTRIBUTION OF THE LEGUMINOSZ. 393 
Axillary peduncles and branching panicles. Leaves bipin- 
nate. Flowers in spikes or heads. 
This very numerous and important section is divided into 
the old world Spiciflorze, which is a large series, the 
American Spicifloree, which is very large, the American 
Oapitulatee, which is very large, and the old world Capitu- 
late, which is a small series. 
The Botryocephale contain upwards of a dozen species, 
and are endemic in Hastern Australia. The leaves are 
bipinnate, the stipules small or absent, and the flowerheads 
globular, in axillary racemes or terminal clusters. 
The Pulchellz are endemic in Western Australia. The 
leaves are bipinnate, the stipules none or small, setaceous, 
not spinescent. Flowers globular or cylindrical, or simple, 
axillary, solitary, or in clustered peduncles. 
Phyllodineze. This series possesses leaves all or mostly 
reduced to flat, terete, or subulate, phyllodia, or minute 
scales, without leaflets. The species are endemic in Aus- 
tralia with the exception of a few types in the neighbouring 
islands, almost identical with certain north-eastern forms, 
and are divided into three well-defined types—firstly, those 
whose phyllodes possess one main nerve, the flower-heads 
being globose; secondly, those whose phyllodes possess 
several, or more, parallel nerves, the flowers being in 
‘globular heads; and thirdly, those whose phyllodes possess 
several, or more, parallel nerves, and whose flowers are in 
spikes. 
Acacia is most abundant in Australia and America, less 
abundant in Africa, still less so in Asia, a very few in New 
Guinea, Fiji, and New Caledonia, and absent from New 
Zealand. The observations of Lubbock,’ Strasburger,’ 
Mueller,’ Cambage,* and the writer, indicate a foliage 
2 (46). 7 (57), 7 (50). * (22). 
