176 FURTHER CONTRIBUTIONS TO THE FOSSIL FLORA. 
the distinguished paleontologist who has done such valuable 
‘work in the elucidation of our Australasian Fossil Flora. 
OsMUNDIA. 
In the leaf beds near Glenora, underlying the older basaltic 
plateau, of which a brief description 1 is given in my larger 
work on “The Geology of Tasmania,” p. 289, recent exami- 
nation has enabled me to add _ several interesting new forms 
to our knowledge of the plaut life of the Lower Tertiaries of 
this island (Paleogene Period). 
Among these occur the more or less perfect impressions of 
the pinuule of a fern which, from their size, form, mode of 
attachment, and characteristic neuvation, suggest alliance with 
the existing genus Osmunda. 
The absence of all knowledge regarding fructification, 
however, makes it hazardous now to refer it to that genus ; 
for the form and mode of neuration also suggest alliance with 
certain barren pinnules of Lygodium (Lygodium? Strzleckii 
Kttings., “Tertiary Flora of Australia,” Sydney, 1888), and 
with barren pinnules of Llavea (see Llavea cordifolia, Lagasca), 
and so cause much doubt as to its true generic position. 
J have, therefore, thought it prudent in our present state 
of knowledge to place it under the provisional generic name 
Osmundia, under which also may be temporarily placed all 
incertse sedis of allied characters. 
PLANtT& INCERTH SEDIS. 
Osmundia (Nov. gen.) 
Frond unknown; barren pinnules large, symmetrical 
oblong, or oblong-lanceolate, entire, somewhat obtusely 
pointed, the lower base slightly auricled; Neuration Neurop- 
teridean ; primary nerve distinct; secondary nerves acutely 
ascending, sharp, thin, dense, dichotomising and slightly 
curving towards extremeties. Horizon—-Lower Tertiary Leaf- 
Beds, Glenora, Tasmania. 
Osmundia Tasmanica. Nov. sp. (PI. L, fig. 2). 
Sp. char.—The same as the genus. Apex generally pointed 
and roundly-obtuse ; primary nerve firm, evanescing towards 
apex; margin somewhat indistinct, but showing indication of 
serrature. Length of larger pinnules 2 inches; breadth, ths 
of an inch. 
There is every appearance that Dr. Ettingshausen’s Lygo- 
dium WStrzleckii is generically allied. The fragment of a 
pinnule described by this eminent authority from a similar 
horizon at Vegetable Creek, New South Wales, was too 
