18.72.} DAINTREE — GEOLOGY OF atTEEKSLAND, 359 



Fig. 10. Part of a larger branch, with the vascular scar in the centre of the 

 leaf- scar. 



11. Part of a stem with large leaf-scars and apical vascular scar. 



12. Leaf-scars without any vascular sear. • 



13. Leaf-scars compressed horizontally. 



14. Leaf-scars compressed perpendicularly. ,, 



All the figures are natural size except 2, 4, 5, and 6. 



Plate XXVII. 



Fig. 1. Sphenopteris clonc^ata, sp. nov. 



2, 3. Pecopteris odontopter aides, Morris. 



2 a. A segment enlarged, to show the venation. 



4. Cardiocarpiini aitstrale, sp. nov. 



5. Cyclapteris cuneata, sp. nov. 



6. Tceniopteris Baintreei, sp. nov. 



Biscussrox. 



Mr.ETHEEiDGE mentioned that, among the fossil Mollusca exhibited 

 from Queensland, thei^e were about eighty species in all, thirty-nine 

 of which were new. About twelve species were also found in the 

 British area, some of them being of common occurrence in both 

 countries. This was especially the case in the Palseozoic rocks, 

 but also prevailed to a considerable extent in those of the Creta- 

 ceous period. The same similarity among fossils so widely sepa- 

 rated in space was found among the fossil corals of Queensland and 

 those of Europe. It was to be regretted that so many of the fossils 

 are merely casts ; but he still thought that they were capable of 

 being properly figured, and the species determined. 



Mr. Carrtjtheks had examined the vegetable remains brought 

 over by the author, which were of great importance. Some of those 

 from the Devonian rocks appeared to be identical with species found 

 in North America. From the remains of one of these, which he 

 could not separate from one described by Dr. Dawson, Leptophloeum 

 rhombicum, he had been able to reconstruct it in its entirety, of 

 which he exhibited a drawing. The plant was lyeopodiaceous ; and 

 its remains served to show that erroneous conclusions had been 

 drawn as to the characters presented by the North- American spe- 

 cimens, which had been regarded as having a Sternhergm--^i{h.. 

 There were specimens also of Cydostigma, of the stipes of ferns, 

 and of a doubtful Calamite. With regard to the supposed Glos- 

 sopteris- and Tcenioptens-ejiochs, which by some had been regarded 

 the one as Palaeozoic and the other as Mesozoic, he was not convinced 

 that they could be distinctly separated, but thought rather that 

 they might both belong to different portions of one great period. 

 Systematically the two forms might be very closely related, the vena- 

 tion of the fronds on which the genera are founded occurring in two 

 forms, which by Linnaeus had been included in one genus, Acrosti- 

 cJium. He thought that neither was of a date earlier than Permian. 



Mr. Smyth regretted that so many questions were brought forward 



