364 On new or little-known Fossil Lycopods. 



and about three quarters of an inch wide. The leaf-scars are 

 about 4 millim. long and of about the same width ; in outline 

 some of them are hexagonal, especially towards the lower part 

 of the figure. Notwithstanding, however, the general simi- 

 larity of Lepidodendron minutum to Lepidodendron Peachii, 

 without further evidence than that afforded by 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 minutum, 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 Andreicsii 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 Volkmanmanum" 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 diffi- 

 culty in identifying specimens of Lepidodendron with many 

 of the described species without the opportunity of examining 

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

 time. 1 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 Palaeo- 

 zoic fossil flora. 



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

 works, Falkirk, Stirlingshire. England : Middle Coal-mea- 

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

 Northumberland. 



EXPLANATION OF PLATE XL 



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

 Kilwinning (nat. s-ize). 1 a. Leaf-scar, enlarged 1| diameters. 

 1 b. 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 McMurtriei, Kidston, n. sp. From Tyniug Pit, Rad- 

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

 cast of impression in the author's collection, communicated by 

 Mr. J. McMurtrie, Radstock. 3 a. Vertical section of one of the 

 cushions (a indicates position of leaf-scar, b its supporting 

 cushion). 3 b. Leaf-scar, enlarged U diameters, to show the 



