Mr Kidston on New or Little-Known Fossil Lycopods. 423 



Sauveur's figure, which is unaccompanied by a description, 

 it is quite impossible to identify the Scotch specimen as his 

 plant. 



Another example of Lepidodendron Peachii from Newsham, 

 Northumberland, showing a younger branch on which the 

 leaf-scars are smaller than on the Falkirk specimen, has also 

 a like similarity with Lepidodendron minibtum, but the objec- 

 tions mentioned in regard to the identification of the Falkirk 

 fossil with Sauveur's species also apply to this. 



The type of Lepidodendron Andrewsii is also fragmentary, 

 and scarcely affords sufficient characters for a satisfactory 

 comparison. Lesquereux says of his species, that " it is of 

 the type of Lepidodendron Volkmannianum" to which group 

 Lepidodendron Peachii can scarcely be said to belong. 



The -specimen which forms the type of this species was 

 collected in 1870 by Mr C. W. Peach, who some time ago 

 submitted it to me for examination; but owing to the 

 difficulty in identifying specimens of Lepidodendroii with 

 many of the described species without the opportunity of 

 examining the types, it has been allowed to remain over till 

 the present time. I have great pleasure in naming this 

 plant after its discoverer, to whom I owe so deep a debt of 

 gratitude for willing assistance given me in my study of the 

 British Palaeozoic fossil flora. 



Horizon and Localities. Scotland : Coal-measures ; Brick- 

 works, Falkirk, Stirlingshire. England: Middle Coal- 

 measures (low-main seam) ; Newsham, Newcastle-on-Tyne, 

 Northumberland. 



Explanation of Plate. 



Fig. 1. Sigillaria Walchii, Sauveur. From the roof of the turf-coal, 

 Kilwinning (nat. size), la. Leaf-scar, enlarged 1^ diameters. Ih. Section 

 of specimen, showing elevation of ribs. Original in the possession of 

 Mr J. Smith, Kilwinning. 



Fig. 2. Sigillaria coriacea, Kidston, n. sp. From (?) Newcastle-on-Tyne. 

 Figure taken from plaster cast of specimen in the collection of the British 

 Museum. (Nat. size.) 



Figs. 3-5. Sigillaria AIcMurtriei, Kidston, n. sp. From Tyning Pit, 

 Radstock, Somersetshire (nat. size). 3. Figure taken from plaster cast 

 of impression in the author's collection. Communicated by Mr J. McMurtrie, 



