170 
the Myrtacese. The primary nerve is prominent. The secondary nerves are 
thin, approximate, somewhat tlexuous, and joined together by a marginal 
nerve. The tertiary nerves join the secondary ones in a direction which is 
oblique to the axis of the leaf. The network consists of minute meshes. 
The well preserved specimens, Figs. 6 and 7, exhibits fine dots, equally spread 
over the lamina. When examined through a strong glass they show them- 
selves to lie the receptacles corresponding to the oil glandules due to the 
leaves of Myrtacese. 
A comparison of these fossils to the leaves of the recent Myrtaceae led 
me directly to the large genus Eucalyptus. E. rudis, Endl., and E. scabra, 
Dum., both living in Australia, possess leaves very similar to our fossils. 
Among the fossil species hitherto described, ours corresponds to Eucalyptus 
oceanica, Ung., of the European Tertiary Flora. I will reserve the decision 
as to whether both species are to be united or not for future investigation. 
Locality and Horizon . — Fox and Partridge’s claim, between Pose 
Valley and the Ped Hill, 2 miles from Emmaville (Vegetable Creek Township) ; 
ironstone shale, from Newer Leads (stanniferous), under basalt. 
Eucalyptus Diemenii, sp. non. 
Plate XV, Figs. 9, 9a, 10. 
Sp. Char. — E. foliis coriaceis, petiolatis, lanceolatis, basi acutis, apice 
acuminatis, integerrimis ; nervatione brocliidodroma ; nervo primario, promi- 
nentc ; nervis secundariis subangulis 65-75° orientibus, valdc approximate 
fere congcstis, tennibus, subrectis, nervo marginali inter sc conjunctis ; nervis 
tertiariis e secundariis extus angulis acutis egredientibus, abbreviate. 
Ohs . — The leaf is smaller and broader than that of the preceding 
species, not falciform and less narrowed at apex. Its most distinguishing 
character is that the secondary nerves are very close to one another, and that 
they quit the primary one at rather acute angles of divergence. From the 
close secondary nerves the tertiary ones are very much abbreviated, and the 
reticulation less developed (see Fig. 9a, magnified). Of the living species, 
Eucalyptus maryinata , Seib., and E. corymbosa, Smith, correspond to our fossil, 
the first relating to form and texture, but the second to all the leaf characters. 
Locality and Horizon. — Withcrdcn’s Tunnel, Two-mile, near Emmaville 
(Vegetable Creek Township), on Vegetable Creek Main Peep Lead ; brown 
carbonaceous clay, below basalt. 
