122 CATALOGUE OF FOSSIL PLANTS 



History Society by Major Cresswell, of Cress well, Northumber- 

 land. "Within this stem, on its removal in sections, there was 

 found the cast of the pith of this plant, extending, as far as could 

 be observed, the entire length of the stem. This pith was nearly 

 upright, partly in the centre, and sometimes pressed to one side, 

 but so continuous as to leave no doubt of its being the pith of 

 Sigillaria. It seems to be identical with Endogenites striata, 

 L. et H., and differs essentially from the pith of Stigmaria, 

 which has a woody cylinder surrounding the pith, as shewn in 

 the Lindley-Hutton figure of their Caulopteris gracilis, F. F., 

 pi. 141, and their figure of the internal structure of Stigmaria 

 ficoides, F.F., pi. 166. 



The Woodcut No. 4 represents the appearance of the sears on 

 a very young stem and agrees with Brongniart' s figure of S. 

 Saulii. A cast of four leaf-scars on a single rib of an older 

 plant is given in "Woodcut No. 5. The scars are much com- 

 pressed and slightly distorted. The specimen figured on Plate 4, 

 f. 1, is intermediate in size and shews the leaf-scars not so much 

 compressed as in the preceding examples. This fine specimen 

 is in the Collection of the Natural History Society. 



EOOTS OF LEPIDODENDEON, ETC. 



STIGMAEIA, Brongniart. 



Stigmaria ficoides, Brongniart. 



Type — Stigmaria ficoides, Brongt., Class. Veg. Foss., 



pi. l,f. 7. 

 Roots. 



Pahnacites verrucosus, Schloth., Petref., pi. 15, f. 4. 



Ficoidites furcatus, Artis, Anted. Phyt., pi. 3. 



,, verrucosus, Artis, Anted. Phyt., pi. 10. 



,, major, Artis, Anted. Phyt., pi. 18. 



Phytolithus plantites, Martin, Petr. Derb., pi. 11, 12, 13. 



Variolaria ficoides, Sternb., Vers. I., pi. 12, f. 1-3. 



Stigmaria ficoides, L. et H., Foss. Flora, pis. 31, 34. 



,, ,, Brongt., Class. Yeg. Foss., pi. 1, f. 7. 



,, ,, Williamson, Mon. Stigmaria, 1887. 



Woody Cylinder and Pith-cavity. 

 Caulopteris gracilis, L. et H., Foss. Flora, pi. 141. 

 Stigmaria ficoides, L. et H., Foss. Flora, pi. 166. 



