112 CATALOGUE OF FOSSIL PLANTS 



figured on Plate 43, Foss. Flora. " E. 5 " on a label at the 



back of this specimen. 



Loc— Shale above High-Main Seam, Gosforth ? (H. C. 668). 



Remarks. — The Lindley-Hutton, comet-tail-like figure of their 

 Lepidodendron longifolium, Plate 161, would puzzle auy one, and 

 the figure given by Sternberg, Vers., pi. 3, and which is referred 

 to by Brongniart and Lindley-Hutton as the Type of this species, 

 seems to be also very inaccurately represented and not at all 

 reliable for comparison. With the help of the specimen No. 

 221 and two others, in the Collection of the Natural History 

 Society, some of the characters of this fossil can be made out. 

 These specimens appear to be terminal, rounded branches fur- 

 nished with a dense tuft of long leaves. The leaves are nearly 

 a foot long, linear, broad, and covered with numerous strong 

 furrows or ridges which gradually run up into a fine point. In 

 some of these the leaf-scar is imperfect, as if the base of the leaf 

 had been broken off as in Knorria imbricata, but in one the leaf- 

 cushions are distinctly seen, small as in those of Lepidophloios, 

 which they resemble, but truncate at the top and with a narrow 

 spindle-shaped leaf-scar; the compression of the leaves over this 

 surface renders the impression of these rather indistinct, but 

 they are visible enough to enable one to compare them with the 

 impressions of the leaf-scars figured by Stur, Culm Flora, Heft. 

 II. , pi. 18, fig. 4, with which they seem to be identical. At 

 least, I have no hesitation in referring Lepidodendron longifolium 

 to the Lepidodendron Volkmannianum of Sternberg and others, 

 but it cannot be grouped with Lepidodendron, as the leaves and 

 scars are very different. Knorria imbricata, Stb., is, I do not 

 doubt, only a larger branch of this species, shewing a peculiar 

 state of preservation of the base of the leaves. 



Badly as the Lindley-Hutton figure of Knorria Selloni, F. F., 

 pi. 97, represents the original specimen No. 221, no one will, 

 I think, question the identity of it with Sternberg's figure, 

 Vers. I., pi. 57, and they appear to be only representations of 

 portions of the stem differently preserved of the plants referred 

 to above. It seems desirable at present, till more information 

 can be obtained, to retain for them the generic name Knorria. 



