GENERAL REMARKS ON THE PERMIAN FLORA. 
219 
than once alluded to the plants of the Permian system found in Russia, and fortu- 
nately before this chapter is closed, we are enabled to give their general character 
from the pen of M. Adolphe Brongniart. 
These plants were first submitted to the examination of our friend Mr. Morris, under whose direction four plates 
of them were prepared, but like ourselves he felt desirous to obtain the opinion of M. Brongniart. That great 
authority in fossil botany, whose detailed description will be given in Part III., recognises the following genera and 
species, from the form of their leaves, viz. Neuropteris salicifolia (Fischer), N. temdfolia (Ad. Brong.), Odontopteris 
Strogomvii (nob.) J , Adiantites Btroyonovii (Fisch.), 0 . Pormiensis (Brong.), 0 . Fischeri (Brong.), Pecopteris Gop- 
pertii (nob.), P. Wangenhemii (Brong.), Neuropteris (Fisch.), Sphenopteris lobata (nob.), S. erosa (nob.), S. incerta 
(Brong.), Hymenophyllites (Fisch.), Noggerathia cuneifolia (Brong.), Sphenopteris (Kutorga), N. expansa (Brong.). 
Without having reference to the original specimens of some of the ferns, M. Brogniart remarks, that it is impossible 
he should adopt a decided opinion respecting such forms as those which have been termed by Fischer Adiantites 
Gdppertii, A. Broumii, and A. Brongniartii ; whilst he has no doubt, that the Sphenopteris cuneifolia of Kutorga is 
certainly a portion of a Noeggerathia, of which genus there may, he says, be more than one species. 
Judging from the stems which he has examined, M. Brongniart adds to the list Lepidodendron (species doubtful), 
L. elongatum (Ad. Brong.), Catamites (n. sp. f), closely allied to several species of the coal fields, and particularly 
to C. Suckowiii 
In conclusion, M. Brongniart observes, “ If, after having thus passed in review 2 , 
all the specimens of this system (Terrain), which I have examined myself, and 
those which are adequately figured, we compare this group of plants, as yet of 
small numbers, with the floras of the periods nearest to your Permian rocks, I 
remark, — 1st. That two species appear to be identical with the plants of the Car- 
boniferous deposits (Terrain houiller), viz. Neuropteris tenuifolia and Lepidodendron 
elongatum ; whilst a large Calamite approaches to C. Suckowii ?. 2nd. The other 
species, to the number of eleven, have not been observed up to this day in any 
other formation, neither in the coal-fields nor in the Trias. These are, Neuropteris 
salicifolia, Odontopteris Strogonovii, 0. Permiensis, 0. Fischeri, Pecopteris Gop- 
pertii, P. Wangcnheirnii, Sphenopteris lobata, S. erosa, S. incerta, Noeggerathia 
cuneifolia, N. expansa. 3rd. All these genera are common to the Permian and 
the Carboniferous systems, whilst up to the present time, the Lepidodendron, 
Noeggerathia, and Odontopteris have been found in the latter only, the true Neu- 
ropteris having been rarely detected in any other deposit. 4th. No one ot 
these Permian fossils can be compared with the plants of the Trias. The absence 
of the characteristic Conifera of the lowermost division of these rocks (the Voltzise), 
and those even (such as the Walchise) which are found in the upper stages of the 
coal-field and in the schists of Lodeve, indicate a veiy maiked diffeience between 
the Flora of the Permian system and that of the New Red Sandstone 01 Trias. 
5th. Botanically, the plants of the Permian system seem to be a continuation ot 
> The new species marked nobis are named by Mr. Morris. 
2 These details are given in Part III. 
