200 
[VOL. X, 
Records of the Geological Survey of India, 
(li) Schizoneura, Schimp.—In this form the leaves (portions of the spath) consist of 
several leaflets, which are long and linear, and attenuated at both ends; by their con¬ 
nexion the spath is produced. Each of the leaflets is traversed by one single pretty thickish 
vein ; and the spath, or a portion of the spath (leaf), shows as many single pretty thickish 
and pretty equally distant veins as there are leaflets joined together. 
That the spath is produced by connexion of several single leaflets is shown by the many 
instances, both in the European Trias and in our Damudas, where the spath partly splits 
into the single and free leaflets. The stalk of this plaut is articulated, and the spath in 
the joints is “ amplexieaulis.” 
I have not found any drawing of an Australian plant which could be referred to 
Schizoneura. 
The characters mentioned distinguish Schizoneura unmistakably from Noggerathia. 
(h) Zeugophyllites. —There are noticed two species of this genus: Zeugophyllites cala- 
moides, Bgt., from India (Raniganj, Bengal); and Zeugophyllites elongatus, Morr., from 
Australia. 
Brongniart, Morris, and Schimper, who very well knew the characters of Schizoneura, 
did not unite Zeugophyllites with this genus; on the contrary, compared it with quite 
other forms. Brongniart, the original describer, says in his Tableau des genres de vegetaux 
fossiles, p. 89* about Zeugophyllites: “Sous ce nom j’ai designe line forme de feuilles 
pinnatfides de Monocotylodones ressemblant a d’autres feuilles de Palmiers, telles que celles 
des Calamus, des Desmoncus, <fce., dont les folioles ont plusieures nervures principales et ne 
sontpasplUes en carenes sur la ligne mediane ; dans la seule espece de ce genre fbssile les 
folioles sont opposees comme dans quelques Calamus.” 
Prof. Schimper thinks to recognise in this diagnosis one of the great Pterophyllum or 
Anomozamites from the Rajmahal Hills. 
Of the Zeugophyllites _ calamoides no drawing exists; hut we have a drawing of 
Zeugophyllites elongatus, Morr.f Supposing this drawing is correct (and there is no reason 
to think that it is not so), the great difl'erence from any known Schizoneura must be seen : 
the veins are much more numerous, and they belong to the leaf itself, which is not com¬ 
posed of several leaflets. It recalls strongly certain Cycadeacece, especially Zamiece, with 
which would also agree the circumstance, that of the Australian Zeugophyllites single 
detached leaves are so frequently found, while in Schizoneura the spaths seem to have been 
much more closely inserted in the joints. Amongst the fossil Cycadeacece, vie find, especially 
with Podozumites and others, that the leaves are frequently detached. 
That Zeugophyllites cannot bo placed with Noggerathia will he seen from the following: 
(c) Noggerathia. —Those specimens from the Darauda series which are styled Noggera¬ 
thia, and those which I have seen from the upper coal measures^ of Australia, cannot be 
compared with either of the former two. The leaves of the so-called Noggerathia are 
oblongly spatliulate, sometimes ohlongly ovately rhomboidal: the veins passing out from 
the attenuated base are thickish, and radiate iuto the leaf surface, several times forked. 
This character is at least exhibited in all the Indian specimens examined by me. It is 
evident that these leaves do not resemble either Schizoneura or the Australian Zeugo¬ 
phyllites ; but neither can they bo quite well united with what is described as Noggerathia 
from the European coal measures. 
* Schimper, Trait d. Pal. veget. II, p. 505. 
t In Strzeleeki, N. S. Wales, &c., tab. vi, fig. 5, 6a. 
$ Above the Marine Fauna, 
