OOLITIC PLANT REMAINS IN YORKSHIRE. 



Rev. GEORGE F. LANE, F.G.S. 



AND 



T. SAUNDERS, M.E. 



Further to our notes in " The Naturalist ' for March 1909: 

 during the past summer, persistent search has been made in 

 the quarries at Marske, with very successful results. During 

 the month of August 1909, we were honoured by a visit from 

 Prof. Nathorst, of Stockholm, and he kindly determined the 

 fossil flora in Mr. Lane's collection. He also examined the 

 Marske Quarry, giving us valuable and suggestive hints, and 

 encouraged us in the work. Some of the duplicates of these 

 rarer plants have been presented by us to the Dorman Museum, 

 Middlesborough, and to the Hull Museum, and altogether a 

 considerable quantity of material is being accumulated. Among 

 the rarer plants found in the Marske Quarry are the following. 

 With the exception of Taxites zamioides and Cycaditcs sp., 

 the whole were examined and determined by Prof. Nathorst. 



Zamites buchianus. 



This plant does not appear to occur in the published list 

 ■of the Jurassic Flora of Yorkshire. We indicated in our 

 previous article that two species of Zamites had been found. 

 One was submitted to Prof. Seward, and he determined it as 

 Zamites, probably new. The specimen of Z. buchianus consists 

 of four large pinnae, with the venation clearly preserved. 

 Zamites huchiamis occurs in the Wealden flora, and it is ex- 

 ceedingly interesting to find it at Marske. 



NiLSSONIA SCHAUMBERGENSIS. 



This is a fine specimen. We already have A'', compta, 

 N. tenuinervis and N. mediana. N. schaumbergensis is new to 

 the Yorkshire Jurassic Flora. ' In the Wealden Flora, the 

 genus Nilssonia is represented by the smaller leaved form 

 N. schaumbergensis.'* 



Cycadites sp ? 



After a careful examination of this fossil plant, its striking 

 resemblance to Cycadites led us to this determination. We 

 will submit this specimen later on for expert diagnosis. 

 Cladophlebis haiburnensis. 



This beautiful specimen was reported in our article for 



* Seward, ' Jurassic Flora of Yorkshire,' page 311. 

 ^910 Jan. I. 



