Ill 
The determination of the genus to which this fossil belongs presents 
no difficulties at all, although no species of the present Flora betrays a striking 
and exclusive similarity to it. On the contrary, it unites the characters of 
several species of Quercus. It closely resembles Quercus virens, Ait., respecting 
the form and consistence of the leaf; Quercus sapotcefolia, Lieb., respecting 
the nervation, especially the characters of the secondary and tertiary nerves, 
and of the network, and Quercus imbricaria, Miclix., in the same respect, 
especially of the angles of divergence of the mentioned nerves, although the 
latter species differs much from the fossil one by its thinner leaves being 
deciduous. Finally, Quercus acutifolia , Nee, Q. Uumboldtii, Bonpl., and Q. 
tolimensis, II. B. K., may be mentioned as species similar to the fossil, respecting 
the form, texture, nervation, and other qualities of the leaves. It is remark- 
able that all known species analogous to Quercus TVilkinsoni, are American. 
Of the fossil species Quercus chlorophylla, Ung., is the nearest related 
to Q. Willcinsoni, but the latter possesses stronger secondary and tertiary 
nerves than the former. A remarkable, although more distant analogy to 
our species is Quercus cineroides, Lesq., of the American Tertiary Flora. 
Locality and Horizon. — Watson’s Starlight Claim, Tinglia ; carbon- 
aceous clay, in a Deep Lead (stanniferous), under basalt. Vegetable Creek. 
Quercus Greyi, sp. nov. 
Plate IX, Fig. 10. 
Sp. Char. — Q. foliis coriaceis finnis, anguste lanceolatis, basin versus 
longe attenuatis, margine incrassato integerrimis ; nervatione brochidodroma ; 
nervo primario prominente ; nervis secundariis subangulis 05-70° orientibus, 
numerosis, flexuosis, ramosis ; nervis tertiariis e primario subangulo recto, e 
secundariis subangulis acutis exeuntibus, ramosis, inter se conjunctis; rete 
macrosynammatum formantibus, maculis reticulo tenerrimo instructs. 
Ohs. — This species is closely allied to the preceding one, but differs 
from it by smaller, lineal-lanceolate leaves, gradually narrowed towards the 
base. It corresponds to Quercus elcena, Ung. 
Locality and Horizon. — Between Hall and Watson’s shafts, in white 
pipeclay, from the Old Bose Valley Lead, on the Main Vegetable Creek Deep 
Lead, Emmaville (Vegetable Creek Township). 
