142 
Obs . — Differs from the preceding species only by its leaf being still 
more narrowed towards the apex, and by mostly rectangular tertiary nerves, 
which lose themselves in a more tender network, as represented in Dig. 15a, 
magnified. In respect to most of the characters, particularly to the leaf 
being much narrowed towards the apex, this species approaches nearer to the 
BanJcsice of the European Tertiary Elora, especially to B. TJngeri , Ett. 
than the preceding one. 
Locality and Horizon . — Old Rose Valley Lead, with the preceding. 
BaNKSIA BlAXLANDI, sp. 710V. 
Plate XII, Figs. 12, 12a and b. 
Sp. Char. — B. foliis breviter petiolatis rigidis, lanceolatis utrinquc 
angustatis, margine spinoso-dentatis ; nervatione brochidodroma ; nervo pri- 
mario promincnte apicem versus attenuato; nervis secundariis sub angulis 
25-35° egredientibus, tenuibus ; nervis tertiariis in rete microsynammato 
dissolutis vix conspicuis. 
Obs . — The leaf before us can only be best compared to leaves of Banksia. 
Its carbonaceous substance, as well as its deep impression on the matrix, 
indicates a very firm and stiff consistence. Its shape is lanceolate, gradually 
narrowed into a short petiole, as well as towards the apex, the latter being 
incomplete on the fossil. The borders are toothed and thickened, and their 
teeth spinous. It should be stated from a part of the margin being well 
preserved, that the spinules are bent backwards or towards the under surface 
of the leaf ; therefore their points are hidden in the matrix, whilst their bases, 
or at least their impressions, arc plainly visible. The nervation exhibits 
a primary and little prominent nerve according to the thick substance of the 
leaf, and thinned towards the apex. The secondary nerves, diverging from 
the primary one at acute angles, are thin, and branch close to the borders. 
They form loops which arc united to a marginal nerve, as represented in Eig. 
12n, this being a distinguishing character of Banksia. Both tertiary nerves 
and network arc incompletely preserved, and Eig. 12a (enlarged) has been 
made from one portion of the fossil only. The described fossil is very similar 
to the leaves of Banksia australis, R. Brown; but it also resembles those of 
Hakea , as, for example, II. jlorida, R. Brown. The latter, however, is 
founded upon a more distant relationship only, and accordingly our species is 
easily to be distinguished from the Ilakea by its marginal nerve, its fine 
