186 JURASSIC PLANTS FROM BEXHILL. X.S.W., 



Evidence which is gradually accumulating tends to confirm the 

 reference of the Australian Cladophlebis auslralis to the family 

 Osmundaceee. At some localities in the. Jurassic ("Walloon Series) 

 of south-eastern Queensland, Cladophlebis australis is found very 

 closely associated with stems of Osmundites, hut the two have 

 not yet been found actually connected. In some of the ferru- 

 ginous sandstones of this Series, plant-remains are very abundant, 

 but there is little variety as regards species, the material being 

 made up almost wholly of Cladophlebis mi si rails, Tceniopteris 

 spatulata, Otozamites spp., and occasional Osmundites stems. 



The specimen figured is No. L.24 in Mr. Mitchell's collection. 



MlCROPHYLLOPTERIS PECTINATA (Hector). 



(Plate viii.j figs. 1, i). 

 1886. Lomarites pectenata, Hector, Det. Cat. and Guide, N. Zeal. 



Court, Ind. and Col. Exhibn., p.66, fig.30A(5). 

 1917. Microphyllopteris pectinata, Arber, N. Zeal. Geol. Survey, 

 Pal. Pull. 6, p. 40, PI. 7, figs.3-6, 8 11. 



"Frond bipinnate 1 ; pinine. 8 cm. or more in length; racbis 

 fairly stout, sometimes grooved, bearing subopposite or alternate 

 small rounded pinnules, about 6 mm. long and up to 5 mm. across. 

 Pinnules somewhat thick. Lateral nerves forking once or twice." 

 (Arber). 



Two specimens are referred to this species, representing pinnae 

 7 cm. and 9 cm. long respectively. The racbis is stout and the 

 pinnules short, rounded, attached by the whole base, opposite or 

 alternate and apparently thick: they are up to about 7 mm. long 

 and 5 mm. across. No detail of the venation is preserved. 



At first sight, these specimens suggest Thinnfeldia, but they 

 arc unlike any of the hundreds of specimens of that genus which 

 have come under my notice. The pinnules gradually become 

 smaller both towards the base and apex, giving the pinna(?) a 

 somewhat lanceolate outline. In this respect they are unlike 

 the pinnae of a Thinnfeldia such as T. Feistmanteli. It might 

 also be suggested that they represent one branch of the dichoto- 

 mous frond of Thinnfeldia odontopteroides, but the fact that the 



