144 
and widely separated, like those of A. ligata, Phill.,* both of 
which are by some observers believed to be identical with 
A. whitbiensis. 
The characteristic Indian fern, A. indica, O. & M.,+ presents a 
totally different appearance to our fossil, from its long and more 
or less acute pinnules. Another Indian plant, A. (Phegopteris ?) 
phegopteroides, Feistm.,f on the other hand, in the size, shape, 
and contiguity of the pinnules, is very like the fragment from 
Leigh Creek, but the venation is quite simple. 
There is no trace of fructification, and it is therefore better not 
to enter into the question of its generic identity, beyond referring 
the species to Alethopteris. 
Thinnfeldia odontopteroides, Morris. 
Obs.—A few pinnules, oval to sub-reniform in outline repre- 
sent this species. 
Podozamites, sp. ind. 
Obs.—A single leaf of this well-known genus is in the collec- 
tion, three and a-half inches long, but still imperfect. The base 
of attachment is shown, and about twelve parallel simple veins, 
extending the whole length of the leaf, with the interspaces 
delicately striate. It is probably allied to, and may even be 
identical with, the protean species Podozamites lanceolatus. 
Frenelopsis (?) sp. ind. Pl. vi., figs. 3-6. 
Obs.—These fragmentary bifurcating branches remind one very 
strongly in general habit of some of the Mesozoic Coniferee, such 
as Glyptostrobus, Athrotaxopsis, and particularly /renelopsis, but 
there is an entire absence of scales on our specimen, and, at first 
sight of stem, articulation also. 
The first specimen consists of a short stem, giving off two 
branches near its fractured base, then bifurcating, each bifurca- 
tion again dividing, one twice, and the other once, near the top 
of the specimen. The main branch bears fine longitudinal, ap- 
parently inosculating, strie, but the subsidiary branches are 
pitted. At the bifurcation two other branches appear to be 
given off, but the connection is not altogether clear. 
The counterpart exhibits further interesting details, for the 
impression, here and there, when the carbonised vegetable 
matter has been removed, shows faint transverse lines, represent- 
ing, I believe, articulations both on the main and subsidiary 
branches. 
* Geol. York., 1836, I. t. 8, f. 14. 
+ Pal. Indica (Gondwana Flora), 1863, I., pt. 1, Fas. 5, t. 27. 
t Ibid, 1881, I1I., pt. 3, p. 81, t. 18a, f. 1 a and 6. 
