140 CATALOGUE OF FOSSIL PLANTS 



specimens and other characteristic individuals were selected. 

 Strangely enough none of the mature kernels Trigonocarpum 

 were represented in the collection. 



I am not certain whether the top or apex of the pericarp was 

 divisible when mature into six lobes or not, but I think it was, 

 though the specimens mentioned above shew only three divi- 

 sions; but these may represent only one side, and the other 

 three may be compressed against these, and this seems the more 

 probable, as the specimens figured by Hutton, F. I\, Plate 83, 

 f. 2, 3, represent, I think, only one-third of the pericarp, the 

 upper part of which when mature would split into two lobes. 

 The Trigonocarpum or mature seed is found only sparingly in 

 some of the sandstones of this Coal-field. Though one feels 

 strongly inclined to think this fruit belongs to some Conifer 

 there is no absolute proof of this affinity, and it is very probable 

 that we shall long continue in ignorance, as the chance of find- 

 ing this fruit attached to its branch is very remote. 



Section of a Strobilus or Cone. 



278. Transverse section and its counterpart of a cone and the 



279. flattened outer leaves or bracts. Very indistinct and doubtful 



organism. 



Loc. — Shale above the Bensham Seam, Jarrow. (H. C. 441). 



Remarks. — This is a very doubtful plant. It was taken at first 

 for a transverse section of a Lepidostrobus or fertile cone, but 

 there is no central structure visible or central axis or radiating 

 lines, but round the margin there is an appearance of short com- 

 pressed bracts or leaves. 



? Stem of Cordaites sp. 



280. Portion of a broad, flattened stem dividing upwards 



into three ; the surface covered with fine longitudinal lines. 

 Loc— High-Main Shale, Gosforth. (H. C. 518). 



281. Portion of stem with striated and furrowed surface and 



indistinct longitudinal lines. 



Loc. — Shale above the Bensham Seam, Jarrow. (H. C. 522). 



