346 O. Feistmantel — Contributions towards the [No. 4, 



former are from one another ; and I think certainly that Mr. W. B. Clarke 

 would he able to distinguish a Noggeratliia from a Schizoneura or vice 

 versa.* 



My opinion about the Australian Zeugophyllites is that it is rather a 

 Zamieae, as it .differs in its chief characters from Schizoneura. 



This latter has, owing to the coalescence of the leaflets into a common 

 spathe, or after the dehiscence of the one spathe into two portions, much 

 thicker veins, the representatives of the midribs of the originally separate 

 leaflets, and the veins are also much more distant and all of equal thick- 

 ness, while Zeugophyllites^ has many more veins, which are the venation 

 of the leaf itself, this being plainly rather a single leaf than the result of 

 the coalescence of several leaflets. % 



I would consider it as belonging to the genus Zamites, Bgt., or perhaps 

 also to some of the Podozamites ; these genera are all mezozoic. 



In a paper by Mr. Bronn on the Triassic flora of the Baibler Sehiefer,§ 

 on pi. vii. fig, 4, is figured a specimen which is tolerably like the Australian 

 Zeugophyllites, only that the veins are a little thicker. 



Schizoneura and Zeugophyllites are therefore substantially quite 

 different, the latter being a single leaf, the former having leaves formed by 

 coalescence of several leaflets. |j 



Schizoneura is especially known from the Raniganj field, Jheria 

 coalfield, but almost in the same abundance also from the Nerbudda valley 

 (upper Denwa valley near Barkundum). In the flora of the Danrnda 

 group many specimens of this genus will be figured. 



Genus Phyllotheea, Bgt. 1828. 

 1828, Brongniart Prodrome, 1828, p. 151. 

 The systematic position of this genus is, as I think, in the 'Equisetaceae, 

 as the leaf-spathe plainly indicates. I do not see anything uncertain 

 about it. 



The most characteristic forms of this genus are known from the Italian 

 Oolite. 



* From specimens which I have seen from Australia I have satisfied myself 

 that the Australian Noggeratliia is certainly a Noggeratliia in the same sense as Nogg. 

 ITislojn, Bunb. Schimper considers Zeugophyllites to be a Cycadeaceae. 



f In my note on the Damuda Flora, P. Gr. S. India, IX. 3, p. 69, 4 lines from 

 below, after the words " seem to belong also to Schizoneura" the words " according to 

 Mr. Oldham" have been omitted, as can be seen from the following sentence, wherein 

 I plainly say " that I do not know anything like Schizoneura from the lower coal-strata 

 in Australia." 



% Streleczki, 1. c. p. 250, PL VI, f. 5. 



§ N. Jahrb. f. Min. etc. 1858. 



H Dana (U. S. Explor. Exped., Geology, p. 715) refers Zeiigophyllitea to Nogge- 

 ratliia. 



