81 
bearing membranaceous and deciduous leaves. In accordance with these 
facts, the representation of Quercus, in the Tertiary Elora of Australia, might 
be considered not less interesting. Leaves of Quercus have been collected at 
Vegetable Creek belonging to species analogous to those living in North 
America, Mexico, on the Lebanon, in East India, Japan, and the Isle of Hong- 
kong. "Whilst types of Fagus are still existing in the present flora of 
Australia, those of Quercus seem to be quite' extinct there. But should ever 
a representative species of that genus in the living Australian Elora be dis- 
covered, it need not be considered a wonderful discovery. Manifold remnants 
of the Tertiary Elora elements are intermixed with that tlora, as I have 
pointed out in the Memoir (Denkschriften, vol. xxxiv) quoted above. 
Although the Tertiary Elora of Australia deviates very much from the 
living one, we find numerous points of connection between them. A species 
of Callitris closely approaches the C. robusta, E. Brown ; a Dammara is very 
near to D. australis, Lamb. ; a Ptnjllocladus, which on the one hand unites the 
characters of all the three living ones, is allied on the other to types of 
Mesozoic, especially Cretaceous Eloras ; the genera Casuarina, Santalum, 
Be) ‘soonia, Grevillea, llalcca, Lomatia, Banlcsia, Dryandra, Qallicoma, Cera- 
topetalum, Boronia, and Eucalyptus are represented by species, more or less 
closely related to living Australian forms. 
A brief synopsis of the conclusions drawn from the general results 
which the investigation of the Tertiary Elora of Australia have offered, may 
be given as follows : — 
Firstly. — The geographical distribution of plants in Australia at 
the Tertiary Period deviated in many ways from the present 
one. Therefore the material for comparison obtainable from 
the present tlora of Australia is not at all sufficient for the 
investigation of the Tertiary one, and must consequently be 
completed from other floras of the globe. 
Secondly. — Types of plants of the Southern as well as of the 
Northern Hemisphere of the globe are associated together in 
the Tertiary Elora of Australia. 
Thirdly . — The flora elements represented in the Tertiary Elora of 
Australia chiefly contain Phylones (original types), which are 
also common to the other Tertiary Eloras of the globe. The 
general character of the Tertiary Elora of Australia cannot, there- 
fore, be considered essentially different from those of the latter. 
llci 67— SS N 
