134 CATALOGUE OF FOSSIL PLANTS 



259. , L. et H. Type specimen, F. F., pi. 285, f. 6. 



This and the above Type-specimens were found in the collec- 

 tion without any label on them, but they are undoubtedly 

 the specimens figured in the Fossil Flora. This specimen is 

 rounded, smoother, and the cross markings not so strongly or 

 distinctly marked as in the plate. 

 Loc— Newcastle-on-Tyne Coal-field. (H. C. 534). 



260. Very compressed specimen in shale, shewing the com- 

 pressed central axis surrounded on one side and partly enclosed 

 in a broad carbonaceous layer ; the transverse markings very 

 distinct and indicated by a groove filled with carbon; the sur- 

 face of the carbonaceous covering is faintly striated longi- 

 tudinally and with very fine transverse markings. 

 Loc— Shale above the Low-Main Seam, Felling. (H. C. — ). 



Remarks. — Four of the Lindley -Hutton Type-specimens were 

 found in the Hutton Collection, F. F. Plate 225, f. 3, 4, 5, 6, 

 numbering the figures from left to right, and of these f. 5, 6 

 differ a little in the width and distinctness of the folds and fur- 

 rows, which are also slightly covered with longitudinal lines 

 and having more the appearance of Endogenites striata, L. etH., 

 than the other two. In No. 260 the Sternbergian pith is enclosed 

 in a large sheath of carbonaceous matter, in which the pith lies 

 a little out of the central line. This sheath has the appearance 

 of an inner cylinder or layer of the stem, as the surface is merely 

 ornamented with fine longitudinal lines and minute transverse 

 furrows, and there are no traces of leaf-scars or apertures for 

 foliar vessels visible, which might be expected if this sheath 

 formed a part of the cortex or its immediate inner layers. It 

 seems, therefore, to be a large internal sheath or cylinder en- 

 closing or surrounding the pith, not closely placed, but with 

 a considerable space between them. Can this pith and central 

 cylinder be part of the stem of Sigillaria^ There can be no 

 doubt, I think, that Endogenites striata is the pith of Sigillaria, 

 and if the cellular substance of the pith, as shewn in Sterniergia, 

 were removed by maceration during the process of fossilization, 

 the form of the cylinder would agree exactly with Endogenites 

 of Lindley and Hutton. It seems probable that at least some of 

 the Sternbergian piths belong to Sigillaria. 



