174 
primario basi prominente apicem versus valde attenuato ; nervis sccundariis 
subangulis 55-G5° orientibus, teuiiibus, valde approximate, fiexuosis, nervo 
marginali tenuissimo inter sc conjunct is ; nervis tcrtiariis tenuissimis dic- 
tyodromis. 
Obs. — A coriaceous leaf varying from lanceolate to almost obovate and 
bearing a strikingly protruded apex. The primary nerve is only prominent 
at tlie base, being considerably thinned towards the apex of the leaf. The 
secondary nerves diverging at rather acute angles are flexuous, and united 
with one another by a very fine marginal nerve. The tertiary nerves dis- 
cernible only on a few spots of the leaf, produce a tender network which is 
represented in Fig. 16a, magnified. 
The leaves show a remarkable similarity to Callistemophyllum acumi- 
natum, Ett., of the Tertiary Flora of Leoben. The latter species exhibits 
secondary nerves diverging at more acute angles. 
Locality and Horizon. — Fox and Partridge’s claim, between Hose 
Valley and the Red Hill, 2 miles from Emmaville (Vegetable Creek Town- 
ship), ironstone shale from Newer Leads (stanniferous), under basalt. 
Myutonium obtusifolium, sp. nov. 
Plate XIV, Fig. 20; Plate XV, Figs. 14, 15, 15a. 
Sp. Char. — M. foliis parvis, brevitcr petiolatis, coriaceis, ovatis vel 
ovato-oblongis, integerrimis, apice angustato obtusis ; nervatione brochido- 
droma; nervo primario distincto, nervis sccundariis tenuissimis nervo marginali 
conjunctis ; tcrtiariis vix conspicuis. 
Obs . — A small leaf of a Myrtacesc, which I shall now denominate 
Myrtonium , as the name Myrtophyllum already designates fossils pertaining 
to another genus. Our leaf is shortly petiolate, rather acute, or almost 
obtuse at its broad base, and narrowed towards its obtuse apex. The primary 
nerve is distinctly discernible, but the secondary ones and their joining 
marginal nerve, represented in Fig. 15a, magnified, are very fine. Only 
traces of tertiary nerves are perceptible, but their character is not distinguish- 
able. 
The fossil generally agrees with leaves of Myrtus and Myrcia. 
Jjocality and, Horizon. — Between Ilill and Watson’s shafts in white 
pipeclay, from the Old Rose Valley Lead, on the Main Vegetable Creek Deep 
Lead, Emmaville (Vegetable Creek Township). 
