BY A. B. WALKOM. 



Of) 



Genera of Ferns and Plant.?: incert.^ sedis. 

 Spheiiopteris hi.r.uiiosa Shirley. 

 Sph. superba Shirley. 



TcEiiioptaris Tenison-Woodsi Etheridge Jr. 

 T. Carruthersi Tenisoii-Woods 

 T. lentriculiforme (Etheridge Jr.). 

 T. Duiistani Walkom. 

 T. ivianamattcp, (Feistmantel). 

 T. crassinfTvis (Feistmantel). 

 Stenojiferis elouyafa (Carruthers).. 



GiNKGOALES. 



Ghikgo aittarctica Saporta. 

 G. digitata ( Brongniart). 

 G. cf, tmtgnifoHa Fontaine. 

 Baiera Siiiimondai Shirley. 

 B. bidens (Tenison- Woods). 

 /> ipsvicieusis Shirley. 

 B. ginkgoides Shirley. 

 ('?)Ginkgoales. 



Stnchyopitys annularioides Shirley. 

 aS'. Simmojidsi Shirley. 



CYCADOPHYrA, 



Bennettitales. 



Beiinettit-s ( Williamsonia) sp. 



CyCADOPHYTA INCERT.E SEDIS. 



Pterophyllum, multilineatum Shirley. 



Gymnospernious seeds. 



Examination of this list at once shows certain distinctive 

 features, the most notable being the comparatively large number 

 of Ginkgoales, the relatively fevv Cycadophyta, and apparent 

 entire absence of coniferous remains.* The small proportion of 



* This statement maj' need subsequent modification. Silicified woods 

 from the Ipswich Series have, in the past, been described as Ai^aiicari- 

 oxylon spp. These woods are at present being re-examined by Professor 

 A. C. Seward, and it is quite possible that they may not be of undoubted 

 coniferous affinities. At any rate, we know of no remains from the Ipswich 

 Series, other than these woods, which may, at the present time, be referred 

 to the Conifers. 



