192 FOSSIL PLANTS. 



the main figure, shows the leaf-scars, and it is with this figure that the 

 specimen in the Collection agrees. 



The leaf-scars on the Yorkshire example are more oval, but from their 

 general similarity to those on the specimen figured by Sternberg from Swina, 

 I have no doubt that both plants are the same species. 



Eoehl (Foss. Flora d. Steink. Form. Westph. pp. 100 and 106) gives as 

 separate species Sigillaria ocellata and Sigillaria^ oculata, but gives as a 

 synonym to each " Palmacites oculatus, Schlotheim." 



Of Sigillaria ocellata Eoehl gives three figures (loc. tit. pi. ix. fig. 1, 

 pi. xxvi. fig. 10, and pi. xxviii. fig. 7). The specimen figured on his 

 pi. xxvi. fig. 10 does not appear to be in a satisfactory state of preservation 

 for specific determination, and may not belong to this plant. That on his 

 plate xxviii. fig. 7 is the one with which the specimen in the Collection agrees, 

 though the British example is in a better state of preservation. His figure, 

 however, shows the characters of the species well, and is, I believe, the true 

 Sigillaria ocellata, Sternberg. The two synonyms then, Palmacites oculatus, 

 Schlotheim, and Palmacites variolatus of the same author, must be excluded 

 from Sigillaria ocellata, Sternberg. 



linger unites Sigillaria ocellata, Sternberg, with Sigillaria oculata, Brong- 

 niart, in doubt, and is followed in this by Goldenberg. Schimper, on the 

 other hand, unites Sigillaria ocellata (Rhytidolepis undulata) with Sigillaria 

 subrotunda, Brongniart,* and this view is adopted by FeistmanteLf 



Horizon. Coal Measures. 



Locality. British. Yorkshire. 



Sigillaria grandis, Sauveur. 



Sigillaria grandis. 



Sauveur, Veget. Foss. de la Belgique, pi. Ivii. fig, 1. 



Schimper, Trait6 d. PalSont. V6g6t. vol. ii. p. 95,' 

 Horizon. Coal Measures. 

 Locality. British. (?) 



Sigillaria coriacea, Kidston. 



Sigillaria coriacea. 



Kidston, Annals and Mag. Nat. Hist, 5th ser, vol. xv. p. 360, pi. xi. fig. 2. 



Description. Eibs alternately widening and contracting, leaf-scars placed 

 on the dilations, slightly broader than high, and somewhat less apart than 

 twice their vertical height, lateral angles prominent, with downward running 

 ridges ; vascular impression situated towards the upper part of the leaf-scar, 

 central impression punctiform, the two lateral lunate. Outer surface of the 

 ribs ornamented with a fine granulation, 



Remarks. The Collection contains several specimens of this species. The 

 ribs at their widest part measure T % inch ; the leaf-scars are fully T % inch 

 in transverse diameter, and -f^ inch long. The granulation which covers the 

 outer surface of the ribs is very similar to the texture of leather. 



All the examples in the British Museum are beautifully preserved, and have 

 wide ribs with large leaf-scars. 



Horizon. Coal Measures. 



Locality. British. (?) Northumberland : Newcastle-on-Tyne. 



Sigillaria Isevigata, Brongniart. 



Sigillaria loevigata. 



Boulay, Terr. Houil. du Nord de la France, p. 42. 



Schimper, Traite d. Pale'ont. Veget. vol. ii. p. 89. 

 t Feistmantel, Vers. d. Bohm. KoLlenab. p. 242. 



