104 CATALOGUE OF FOSSIL PLANTS 



203. Part of a compressed stem, about fifteen inches long, 



with remains of five scars on each side, and where the cortex 

 is preserved with distinct rhomboidal markings ; beneath the 

 cortex the surface is distinctly punctured. The scars are ar- 

 ranged rather closely on both sides of the specimen, and are 

 alternate, or nearly so. 

 Loc. — Shale above the Bensham Seam, Jarrow. (H.C. 383). 



204. Two large scars on each side of a compressed stem, 



with distinct rhomboidal leaf-scars, in the centre of which is a 

 small elongated puncture. There is a fracture across one of 

 the scars, caused probably by pressure after fossilization. 

 Loc— Shale above the Bensham Seam, Jarrow. (H. C. 382). 



205. — Bothrodendron punctatum, L. et H. 



Impression of a very large scar, nearly six inches long and 

 four wide, and nearly oval in outline. The surface round the 

 scar very distinctly punctured. 

 Loc. — Shale above the Bensham Seam, Jarrow. (H.C. 399). 



206. Impression of one small oval scar. 



Loc. — Shale above the Bensham Seam, Jarrow. (H C. 401). 



Remarks. — Neither of the Lindley-Hutton Type-specimens 

 was found, in the Collection, but the counterpart of U. minus, 

 Plate 6, from South Shields, and a specimen with smaller scars 

 from the same locality, are still in the Collection. No. 202 

 very much resembles in size and general appearance Plates 80, 

 81 of the Possil Plora, and Nos. 205, 206 are good examples of 

 the larger scars like Hutton's figure Plate 118 of Bothrodendron 

 punctatum. It seems to me that the row of oval scars on each 

 side of the stem and branches is the chief generic character of 

 the genus Ulodendron, and that it is not possible to group the 

 present species U. maj'us with Sigillaria proper, and U. Velthei- 

 mianum with Lepidodendron, without doing injury to the classi- 

 fication and affinity of these two plants, which belong, so far as 

 I have been able to ascertain, the one, U. majus, to the Coal- 

 measures, and the other, U. Veltheimianum, to the Carboniferous- 

 Limestone series, at least this is the mode of their occurrence in 

 Northumberland. 



The larger scars figured by Lindley-Hutton as Bothrodendron 

 punctatum are only specimens, which shew a layer of the inner 



