FROM THE IITTTTON COLLECTION. 125 



and is a fine cast in sandstone of the root and rootlets of a Stig- 

 maria, from the Carboniferous-Limestone series of Stanhope, in 

 "Weardale ; and probably it is part of the root of a Zepidodendron, 

 as hitherto no traces of Sigillaria bave been seen from this lo- 

 cality. 



Stigmaria 



239. — Stigmaria . 



Impression on shale of large root with waved longitudinal 

 lines and raised, transverse irregular ridges. Few tubercles 

 and very indistinctly marked on the shale. It seems to be 

 part of next specimen. 

 Loc— Felling. (H.C.5U). 



240.— Stigmaria , Williamson, Mon. Stig., pi. 13, f. 71. 



A large slab of shale, shewing raised, somewliat irregular 

 parallel lines. Between the raised lines are indistinct traces 

 of tubercles and numerous small waved furrows. The stronger 

 raised lines branch off to both sides or bifurcate near the 

 lower margin of the slab, indicating a division of the root. 

 This is perhaps only the impression of the underside of a large 

 Stigmarian root close to the base of the stem. 

 Loc— Felling. (#.(7.516) 



Remarks. — The two specimens, lios. 239, 240, are only im- 

 pressions on shale of the underside of some large roots of Stig- 

 maria. The surface is curiously waved, and the impressions of 

 tubercles are few and very indistinct. 



PLANTS INCERT^l SEDIS. 



(CYCADACEJE, Auctorum.) 



PSYGMOPHYLLTJM", Schimper. 



Psygmoplryllum flabellatum (Lindley et Hutton sp.). 



Type — Ncegerrathia flabellata, L. et H., Foss. Flora, 



pi. 28, 29. 

 241. — Nagerrathia flabellata, L. et H. 



This specimen bears a general resemblance to Hutton's pi. 28. 

 It is about ten inches in length, and composed of a compressed 

 narrow stem and a number of cuneate or triangular leaves, 



