109 
Obs. — Tlie substance of the leaf is firmer than that of the preceding 
species ; the borders are entire, the secondary nerves closer to one another, 
the tertiary nerves more distant and dictyodrome. In the other qualities of 
the leaf, especially of the network (Fig. 5a, magnified), the present fossil 
agrees with it, and likewise hears the type of a Myricci leaf. 
Of the already described fossil species, Myricct salicina, Ung., is an 
analogous one. 
Locality and Horizon. — Witlierden’s Tunnel, Two-mile, near Emnia- 
ville (Vegetable Creek Township), on Vegetable Creek Main Deep Lead; 
brown carbonaceous clay below basalt. 
BETTI LA CELL. 
Alnus Maccoyi, sp. nov. 
Plate IX, Figs. 8 , 9, 22, and 22 a. 
Sp. Char. — A. foliis petiolatis, latiusculis, ovato-oblongis, duplicato- 
dentatis ; nervatione craspedodroma ; nervo primario prominente ; nervis 
secundariis sub angulis 40-50° orientibus, rectis, ante marginem vix sursum 
curvatis, simplicibus ; nervis tertiariis tenuibus rectangularibus, inter so 
conjunctis. 
Obs. — In the first part of these Contributions, I have proved the 
existence of the genus Alnus in the Tertiary Flora of; Australia by the 
determination of its cone-like fruit and leaves. As no other genus of the 
Vegetable Kingdom is known exhibiting a fructification and leaves like 
Alnus, it would only be a useless attempt to class these fossils in any other 
family. 
Fortunately there have been collected at Elsmore and Vegetable Creek 
leaves and fruits which I can only declare as belonging to Alnus, but to 
another species. While the above indicated Alnus Muelleri is closer related 
to A. gracilis or A. cycladum, the leaves found at Elsmore (of these, only one 
is figured, Fig. 9) come, respecting their qualities and size, much nearer to 
Alnus Kefersteinii , Goepp. The described species is still characterised by a 
longer leaf and by its secondary nerves being straight or scarcely bent 
towards the borders. In Fig. 8, a smaller leaf from Vegetable Creek is 
figured, showing the double-toothed margin and the nervation (Fig. 8a, 
magnified), both well preserved. 
