Mr Kidston on New err Little- Knovm Fossil Lycoijods. 419 



take this opportunity of expressing my thanks to him for 

 much valuable assistance received while examining the fossil 

 flora of the Eadstock Coal-field. 



Horizon. Eadstock Series of the Upper Coal-measures. 



Locality. Tyning Pit, Eadstock, Somersetshire. 



2. Sigillaria coriacea, Kidston, n. sp. (PL XXI., Fig. 2). 



Description. — Eibs alternately widening and contracting; 

 leaf-scars placed on the dilations, wider than high, with a 

 slight sinus on their upper margin ; lateral angles prominent, 

 situated about the centre of the scar, with downward-running 

 ridges ; vascular cicatricules placed above the middle of the 

 leaf-scar, the two lateral lunate, the central punctiform. 

 Outer surface of the bark ornamented with a fine granula- 

 tion. 



Remarks. — The only specimens of this fine Sigillaria with 

 which I am acquainted are those in the British Museum, 

 which became known to me while preparing the " Catalogue 

 of the Palaeozoic Plants " in that collection. All the speci-. 

 mens represent a similar age of the plant, and perhaps are 

 different pieces of one individual. 



The ribs measure across the dilated portions 22 millim., and 

 at the constrictions 19 millim. The leaf-scars are 16 millim. 

 broad and 12 millim. high, and 16 millim. apart. 



The whole surface of the bark is ornamented with a fine 

 granulation. On the central portion of the ribs it is more 

 strongly marked and the granulation slightly larger than on 

 the other portions of their surface ; but its presence is dis- 

 tinctly seen over the whole area of the ribs. 



The two lunate vascular impressions are 3 millim. long, 

 and the central punctiform cicatricule is about 1 millim. in 

 diameter. The sinus on the upper margin of the leaf-scar, 

 though slight, is distinct. 



The ornamentation of the bark is of a somewhat similar 

 nature to that which occurs on Sigillaria duacensis, Boulay,^ 

 but much finer. From this species it differs entirely in the 



1 Boiilay, " Le terr. houil. dii nord de la France et ses vegetaux fossiles," 

 p. 43, pi. il,, fig. 3. These de geologic presentee a la Faculte des Sciences 

 de Caen : Lille, 1876. 



VOL. VIII. 2 D 



