14 



CYCADOPHYTA. 

 BENNETTITALES. 



Bennettites (Williamsonia) sp. 

 (Plate 4, fig. 5.) 

 Specimens which can definitely be classed as members of the 

 Bemiettitales are comparativelj^ rare in the Queensland Lower 

 Mesozoic Rocks. Two specimens from the Ips^\^ch Series at Denmark 

 Hill, of which one is figured on Plate 4, fig. 5, afford a very close 

 comparison with figures of expanded bracts of Bennettites from 

 other parts of the world. 



These specimens show expanded linear bracts, ten in number, 

 which are in a clo.se spiral, and do not form a true whorl. The 

 bracts are about 3 cm. long and 1 to 1*2 cm. wide, and are rather 

 obtusely pointed. Some of them show a small number of veins 

 parallel to the length and about 1 mm. apart. 



The specimens are of the same general character as Bennettites 

 {Williamso7iia) Carruthersi, Se-wardj^^ from the Wealden Flora 

 of England ; also to specimens figured from the flora of the Mixteca 

 Alta in Mexico by Wieland as Williamsonki TlazoUeotl-'^ and W. 

 Hu itzilopoch tli.^^ 



Similar specimens have also been figured from India by 

 Feistmantel from the Jurassic f ora of Kach.-* 



The present specimens are not sufficiently distinctive to be 

 worthy of a new specific name, and it seems better to leave them 

 without such until further information is available. 



Locality : — {Ipswich Series) : Denmark Hill, Ipswich (S 67). 



Figured specimen : The original of Plate 4, fig. 5, is specimen 

 S 07 in the " Simmonds " Collection in the University of Queensland. 



Ptilophyllum (Williamsonia) pecten (Phillips). 

 (Plate 5, fig. C.) 

 For full synonymy of Williamsonia pecten, see Seward (04), 

 p. 190. 



1883. Ptilophyllum oligoneurum, Tenison- Woods, Proc. Linn. Soc, 



N.S.W., 8, p. 149, t. 7, figs. 2-4. 

 1892. Ptilophyllum oligoneurum, Etheridge, Geol. Pal. Qld., p. 382, 



t. 7, fig. 11 ; t. 16, fig. 2. 

 1902. Ptilophyllum oligoneuron, Shirley, Qland. Geol. Surv., Bull. 



18, p. 8. 



** Seward (95), t. 10, tig. 5 ; t. 11, flgs. 1, 2. " Wieland (14), t. 27, flg. 7 ; t. 2S. 

 " Wieland (14), t. 27, flg. 6. -* Foistniantel (76), t. 12, flgs. 5-6. 



