118 
simplicitcr, vel inoequaliter vel cluplicato-dentatis ; nervatione craspedodroma ; 
nervo primario basi vel usque ad dimidium laminae prominente recto vel 
paullo lluxuoso ; nervis secundariis pluribus, subangulis 40-45° orientibus, 
rectis simplicibus ; nervis tertiariis tenuibus, angulis subrectis egredientibus 
simplicibus, vel ramosis, reticulum valde evolutum et prominens includentibus. 
Obs . — A beautiful species, frequently occurring in the abovenamed 
locality, and doubtless related to Fagus Dombcyi, Mirb., an inhabitant of 
South Chili at tlie present time. Two varieties in the form of the leaf should 
be distinguished here : One possesses ovate or rhomboidal leaves, tlie other 
oblong, or almost lanceolate ones. The texture is perfectly coriaceous ; the 
petiole only reaches the length of 3 millimeters. The base is acute, seldom 
more narrowed, the apex elongate ; tlie borders are unequally or doubly, 
rarely simply, toothed. The primary nerve on the shorter leaves is only 
prominent at their base, being more or less flexuose, like that of Fagus 
Dombeyi ; while on the longer ones it is straight, stronger, and more prominent. 
The secondary nerves vary likewise from a thinner to a firmer state of their 
development, being in the latter case straight and undivided. The tertiary 
nerves are fine. Tlie network is intensely developed (Fig. 7 a magnified), its 
very small meshes being roundish-angular and prominent, like those of the 
living species named. A small branclilet, not figured in the plate, shows its 
leaves to be alternate. The leaf-fossils, Figs. 5, C, 7, belong to the first- 
mentioned variety, bearing shorter and smaller leaves, whilst, on the contrary, 
Fig. 3 belongs to the second, with longer and larger leaves, with the fossil, 
Fig. 4, and several others not figured here, laying between them. 
I named this species in honor of Baron Ferdinand von Mueller, 
F.R.S., of Melbourne. 
Locality and Horizon. — Withcrden’s Tunnel, Two-mile, near Einma- 
villc (Vegetable Creek Township), on Vegetable Creek, Main Deep Lead; 
brown carbonaceous clay, under basalt. 
Fagus Hookeili, sp. nov. 
Plate X, Figs. 10-11, 11 a. 
Sp. Char. — F. foliis submembranaceis, ovatis vel ovato-oblongis, 
utrinquc angustatis, margine duplicato-dentatis ; nervatione craspedodroma; 
nervo primario debili, recto ; nervis secundariis pluribus, subangulis 30-40° 
