149 
nervo primario debili, recto, excurrente ; nervis secundariis angulis acutis 
egredientibus, tenuissimis parallelis ; nervo marginali inter so conjunctis. 
Obs. — A small lanceolate leaf, almost equally narrowed towards botli 
its ends, entire, and of a more tender consistence. Its surface is densely 
covered with, minute nodules (see Fig. 9a, magnified), at all events appendages 
of the epidermis. The primary nerve is almost fine, straight, excurrent. The 
secondary nerves, visible only on parts of the fossil, are very thin, and joined 
by a somewhat undulate marginal nerve. No traces of tertiary nerves are 
perceptible. 
This is a peculiar leaf, which bears the form and texture of some 
Myoporinese, but especially the qualities of the epidermis and the nervation 
of Myosolis, and of other Borraginese. We presume that it might be best 
classed in the latter order, which is also represented in Australia in the Flora 
of the present epoch. 
Locality and Horizon — Old Bose Valley Lead, with many of the 
preceding species. 
Trachyphylltjm obtusum, sp. non. 
Plate XIII, Figs. 18, 18a. 
Sp. Char. — T. foliis confertissime granulosis, coriaceis, oblongo- 
lanceolatis, apice ohtusis, basem versus angustatis, margine integerrimis ; 
nervatione camptodroma; nervo primario debili, recto, infra apicem evanescente; 
nervis secundariis tenuissimis vix conspicuis. 
Obs. — Another lanceolate leaf, obtuse on the apex, narrowed towards 
the base, coriaceous, and exhibiting an epidermical structure like that of the 
preceding species. Its surface shows the very same minute nodules, but they 
are closer together and less prominent than those of the former one (see 
Fig. 18a, magnified). The primary nerve is a little prominent only at base, 
straight, thinned in its course towards the ancx, which it does not reach. The 
secondary nerves are very thin, only their traces being most discernible. I 
take this fossil likewise as an asperifolian leaf, and have now to remark that 
in calling it Trachyphyllum , I do not refer it to the Borraginese (Asperifolice 
in the stricter sense) only, but also to the closely-related Cordiacem, and that 
I reserve the closer determination of the genus for future investigation. 
Locality and Horizon. — Old Bose Valley Lead, with the preceding 
species. 
