180 TEETIARY ROCKS OF AUSTRALASIA, 



forms of leaves, we obtain new and sufficient proofs con- 

 cerning* the view which I have brought forward in the 

 first part of these contributions, that the elements of the 

 floras are mixed together in the Tertiary Flora of Australia - 

 These proofs consist of facts relative to the common 

 appearance of the genera endemic in Australia with genera 

 we find in other floras, but which are strange to the 

 Australian one. For example, thej-e occur in the fossil 

 flora of Vegetable Creek and Elsmore (New South Wales) 

 the following genera of the Australian element : — Phyl- 

 locladus, Casuarina, Santalum, Persoonia, Gi^evillea, 

 Haliea. Lomalia, Banksia, Dryandra. Callicoma, Cerato- 

 petalum, Pomaderris, Boronia, and Eucalyptus. On the 

 other hand, we find here, intermixed with the former, 

 types belonging to — /Se^-Moza (Cahfornia), il/?/rica (Europe, 

 North America, Asia, South Africa), Alnus (Northern 

 Hemisphere), Quer'cus (Northern Hemisphere), Cinna- 

 momum^ (Asia), Sassafras (North America and East India), 

 Aralia (North America, Japan, and New Zealand), EIcbo- 

 carpus (Tropical Asia), Acer (Northern Hemisphere), 

 Copaifera (Tropical America)." From such considera- 

 tions, this able authority concludes: "There is now 

 scarcely any doubt that the general character of all 

 Tertiary Floras of the globe is one and the same in regard 

 to the mixture which they exhibit, and continued so until 

 the separation of the elements of floras into the existing 

 special floras towards the commencement of the present 

 period." 



Fie also gives a synopsis of the conclusions drawn from 

 the general results obtained from the investigation of the 

 Tertiary Flora of Australia, as follows : — 



1. " The geographical distribution of plants in Aus- 



tralia at the Tertiary period deviated in many 

 respects from the present one. Therefore the 

 materials for comparison obtainable from the 

 present floi-a of Australia are not at all sufficient 

 for the investigation of the Tertiary one, and 

 must be completed fi-oni other floras of the 

 globe." 



2. " Types of plants of the Southern as well as of the 



Northern Hemisphere of the globe are associated 

 together in the Tertiary Flora of Australia." 



* Also Avisti'alia. 



