268 Transactions. — Geology. 



at acute angles, are parallel with each other, and terminate 

 in the teeth at the edge. In consequence of the unfavourable 

 nature of the stone the tertiary nerves are scarcely recogniz- 

 able. I was enabled to discover in specimens figs. 21 and 22 

 a few tertiary nerves, which start from the outer sides of the 

 secondary nerves almost at right angles. 



There is no doubt that these leaves belong to Querciis. 

 They show on the one hand the greatest similarity with those 

 of Q. dnjvicjoidcs, Ett., of the Tertiary flora from Dalton, near 

 Gunning, in New South Wales (vide my Contributions to the 

 Tertiary Flora of Australia, Memoir i., vol. xlvii., p. 117 ; 

 pi. ii., fig. 2) ; and on the other hand they are similar to 

 the leaves of Q. lonchitis, Ung., of the European Tertiary flora ; 

 between both of which they occu^py an intermediate position 

 as regards size, shape, and notches. There is no difference in 

 the nervation. 



We may conclude from the few fossil leaves here shown 

 that not only the size but also the condition of the edge of the 

 leaf is subject to a few alterations. Fig. 20, from Murderer's 

 Creek, comes nearest to the above-named Q. drymcjoidcs in 

 consequence of the more projecting teeth of the leaf. 



Dryophyllum dubiurn, sp. nov. 



Plate XXVI., figs. 19, 19a ; Plate XXVII., fig. G. 



D.foliis coriaceis, anguste lanceolatis, hasi rotundata petlo- 

 latis, apiccm versus senshn attemiatis, irregulariter sinnoso- 

 dentatis ; nervatione craspedodruvia, nervo priviario pTomincnte 

 recto, aplccm versus attenuato, secundariis distinctis, sub an- 

 gulis 55°-G5'^ orientibus, numerosis approximatis flexuosis, leviter 

 curvatis, apice furcatis, .ramo antico marginem adscendente, 

 postico craspedodromo ; nervis tcrtiariis e latere externo sub 

 angulis acutis egredientihus, tenuisshnis ramosis, in rcto irregu- 

 lariter polygono coeuntibus. 



Locality : Landslip Hill (Otago Museum). [Ex Coll. 

 Geol. Surv. Otago, 1862 ; Hector.] 



The remains depicted were found in the same stratum 

 beside each other. They appear to belong to one species, 

 although the basal piece (fig. 19) seems doubtful. The nerva- 

 tion (tig. Ida) and the shape of the leaf indicate Dryojjhyllum. 

 D. lineare, Sap., of the fossil flora of Sezanne, seems nearest 

 to our species, of which the secondary nerves are, however, 

 more bent and ascend more tow^aids the edge. The species 

 before us is distinguished from D. nelsonicum, m., which ap- 

 pears in the Chalk flora of Pakawau, and which has been 

 described in Part II., by the horn-like serrated edges, by .the 

 winding fork-like secondary nerves, and the very delicate 

 tertiary nerves. 



