Feb., 



19 



''•'1 CuAPMAU, Geological History of Australian Plants. 153 



whilst the pteridophytes are represented by the Horse-tail, 

 Eqiiisetites wonthaggiensis. Of the ginkgoales, both Ginkgo and 

 Baiera occur, but these two genera are more abundant in the 

 Queensland Mesozoic series. 



~ Conifers are well represented by Podozamites (species of 

 McCoy's, probably of Araucarian affinities), Araucarites (both 

 leaves and cones), Palissya, Alhertia, Taxites, and Br achy - 

 phylhim. These conifers are also found in the other States — 

 Araucarites, Palissya, and Podozamites in New South Wales, 

 whilst Taxites and Brachyphyllum have been obtained from 

 the Walloon Series, Queensland. 



In Western Australia, at Mingenew, the cycad Otozamites 

 and the conifer Pagiophyllnm occur. 



The Talbragar beds of New South Wales contain, besides an 

 important fish fauna, Tceniopteris Daintreei and Cladophlebis, 

 as well as Podozamites lanceolatus. 



Tasmania yields a rich fern flora, most of the genera being 

 common to some of the other States. Besides those forms 

 already noted under Lower Mesozoic, we may mention the 

 following, which are common to the Victorian Jurassic : — 

 Thinnfeldia odontopteroides (recorded as T. media), T. lanci- 

 folia (recorded as T. superha), Cladophlebis denticulata, var. 

 australis, and Stenopteris elongatus (recorded as Trichomanides 

 spinifolium). In a note sent to the writer in 1912, the Govern- 

 ment Geologist of Tasmania, Mr. W. H. Twelvetrees, mentions 

 the interesting fact that Phoenicopsis elongatus (" Zeugo- 

 phyllites") is found abundantly throughout the Mesozoic in 

 Tasmania, and further adds : — " Our Ida Bay beds would seem 

 to be the lowest, succeeding, I think, our Triassic Sandstones 

 (Knocklofty, &c.)" As regards the occurrence of Tceniopteris 

 in the Tasmanian Mesozoic flora, T. spatulata, var. Daintreei, 

 is absent, but Johnston describes T. tasmanica and T. 

 Morrisiana from Spring Hill and Longford respectively. 

 These forms seem to be closely allied to T. Tenison-woodsi, 

 which in Queensland ranges throughout the Mesozoic. 



The Walloon Series (Upper Mesozoic) of Queensland has 

 been investigated by Walkom, who enumerates the following 

 comprehensive flora : — Equisetites rotiferum, Cladophlebis 

 australis, Phlebopteris alethopteroides, Dictyophyllum Davidi, 

 Hausmannia, Thinnfeldia Feistmanteli, T. odontopteroides, 

 Sagenopteris rhoifolia, Sphenopteris Baileyana, Tceniopteris 

 spatulata (including var. Daintreei and var. major = var. 

 Carruthersi), T. crassinervis, Stenopteris elongatus, Phyllopteris 

 Feistmanteli, Ginkgo cf. magnifolia, Baiera Simniondsi, Ptilo- 

 phyllum pecten, Pterophyllum abnorme, P. contiguum, P. 

 Nathorsti, Pseudoctenis eathiensis, Otozamites Queenslandi, 0. 

 obtusus, 0. Feistmanteli, 0. cf. Mandelslohi, Araucarites poly- 



