6 PERMIAN FOSSILS. 
NevuROPTERIS HuTTonriAnA, King. Plate 1, Fig. 4. 
(?) Onz or THE “Two sprctus oF Ferns’ cited by Sedgwick. Trans. Geol. Soc. Lond. 
2d series, vol. ii, p. 120, 1829, 
Nevuropreris Hutronrana, King. Catalogue, p. 5, 1848. 
It is impossible to draw up a diagnosis of this Fern from the imperfect state in 
which it is generally found. The pinnules, of which only single or isolated examples 
appear to have been noticed, display the venation rather imperfectly: they resemble 
the pinnules of WVewropteris gigantea in form, at least, such as they are represented by 
Sternberg in the ‘ Flora der Vorwelt,’ pl. xxii; but the vems are wider apart, some- 
what as in WV. heterophylla. The form of the pmnules is somewhat oblong: they have 
an indistinct midrib: and the veins, several of which apparently rise from the base, 
become forked as they approach the margin. 
Professor Sedgwick notices two Ferns in his paper, but it is suspected that the one 
not cited in the synonomy under the present head, and which has not yet occurred to 
the writer, is the Caulerpua (?) selaginoides, a view apparently sanctioned by what has 
already been stated under this species. 
Neuropteris Huttoniana occurs sparingly at Thrislington Gap, Midderidge, Brussleton, 
and Kast Thickley, in the Marl-slate.’ | 
Sub-class LycopoDALeEs, Lindley. 
Diagnosis.—* Vascular acrogens, with axillary or radical one- or many-celled 
spore-cases, and spores of two sorts.” (Lindley.) 
This group comprises the two orders Lycopodiacee and Marsilacee, to which it 1s 
proposed to add another, Lepsdodendracee, which is represented by several paleeozoic 
forms. 
Order LEPIDODENDRACES, Sternberg.” 
LEPIDODENDREA, Unger. 
SaGENARIACE®, Corda. 
Diagnosis.—Arborescent plants having a stem, with a rather large pith, consisting of 
perpendicularly elongated parenchyma, and surrounded by a narrow, completely- 
closed cylinder (medullary sheath ?), composed of irregularly-arranged, striated vessels. 
Encircling the cylinder is a broad zone of spheroidal parenchyma, surrounded by 
' A remarkable Fern (?), figured and described in the ‘Fossil Flora,’ vol. ii, p. 201, under the name of 
Dictyophyllum crassinervum, has been found in the (Permian or Trias?) New Red Sandstone, near 
Liverpool. 
* The Vegetable Kingdom, p. 69, 1847. 
8 Sternberg considered this a “ Family” group, which he named ‘‘ Lepidodendron.”’ 
