FOSSIL PLANTS FROM THE UPPER PALAEOZOIC ROCKS OF NEW SOUTH WALES. By A. B. Walkom, D.Sc. (Plates xxi-xxiii; one Text-figure.) [Read 27th June, 192S.] This paper contains descriptions of a number of fossils which had been submitted to Professor A. C. Seward at Cambridge by Professor Sir T. W. Edgeworth David. During 1927, while holding an International Education Board Fellowship in Science I spent about nine months working at Cambridge under Professor Seward, and he suggested the examination and description of these specimens as part of my work. During the progress of the work he maintained a close interest in it and helped very materially by suggestions and notes on many points that arose. I desire to acknowledge freely my indebtedness to Professor Seward, not only for his assistance in this particular piece of work, but also for his kindly interest in all that I was able to do whilst working with him and for the inspiration afforded by the privilege of close association with him and his work. To the International Education Board of New York and the Council of the Linnean Society of New South Wales I am deeply indebted for the opportunity to work at Cambridge and other places abroad. The species described are Leinclodenclron Osbor7iei, n. sp., Ulodenclron minus L. and H., and Pitys (?) SussmilcM, n. sp., from the Volcanic Stage of the Kuttung Series; SUgmaria flcoicles Brongn., from both Volcanic and Basal Stages of the Kuttung Series; Dadoxylon farleyense, n. sp., from the Ravensfield Sandstone at the base of the Farley Stage of the Lower Marine Series; and Dadoxylon Arl)eri Seward from the Newcastle Coal Measures at Lake Macquarie. The relative positions of the horizons from which the fossils were obtained are shown on the following vertical sections of the Carboniferous and Permo-Carboniferous succession in New South Wales, compiled from information kindly supplied by Professor Sir Edgeworth David, and Mr. G. D. Osborne, B.Sc, of the Geology Department of the University of Sydney, who has done much detailed field work on the Carboniferous rocks of the district. Feet. Newcastle Series .. .. JLoTer Itage •' •' ''. '.'. '.'. '' '' 800-1,000 Tomago Series 500-1,800 (-Chaenomya Beds 100 -150 Crinoidal Shales 1,500 -3,000 Muree Beds 400 Branxton Beds 2,000 -3,000 Greta Series .. .. .. . ." ^ 300 I'Farley Stage 1,000 Lower Marine Series . . . . J Rutherford Shales . . 1,070 LLochinvar Stage . . 2,635 H Upper Marine Series
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