114 CATALOGUE OF FOSSIL PLANTS 



of the leaf-scars according to the state of preservation. As the 

 leaf-scars of this species present some peculiarities in their ar- 

 rangement, and have a divisional ridge or groove hetween them, 

 Sternberg's Favularia is retained to indicate these generic differ- 

 ences until more information can be obtained about this fossil 

 stem. 



The Sigillaria Eugenii, Stur, Culm Flora, Heft II., taf. 25, 

 f. 3, approaches this species so closely, if we may judge from 

 the figure, as almost to lead to the conclusion that they are 

 identical.] 



SIGrlLLAEIA, Brongniart. 



{SYRINGODENDRON, RHYTIDOLEPIS, Sternb.) 



Sigillaria scutellata, Brongniart. PI. 5, f. 1. Woodcut No. 6. 



Type — Sigillaria scutellata, Brongt., Class. Yeg. Foss., 



pi. 1, f. 4. 



Sigillaria scutellata, Brongt., Hist.Yeg.Foss.,pl.l50,f.2,3; 



pi. 163, f. 3. 

 pachyderma, Brongt., Hist. Yeg. Toss., pi. 150, f. 1. 

 Candollii, Brongt., Hist. Yeg. Foss., pi. 150, f.4. 

 mammillaris, Brongt., Hist. Yeg. Foss., pi. 163, f. 1. 

 pyriformis, Brongt., Hist. Yeg. Foss., pi. 153, f. 3,4. 

 pachyderma, L. etH., Foss. Flora, pi. 55 (excl. 54). 



233. — Sigillaria pachyderma, L. et H. Type specimen, F. F., pi. 55. 

 The slab of shale covered with the ribbed impressions of this 

 Sigillaria is nearly nine inches long and six inches wide. There 

 are fourteen ribs in this width, ornamented with casts of scars 

 an inch apart. The scars are suboval in shape, wider and 

 rounder at the lower end, with impressions of two distinct, 

 elongated slits or openings for vessels near the centre. The 

 surface with impressions of fine longitudinal striae. It is a 

 cast in shale, free from any carbonaceous matter. Hutton's 

 drawing, Foss. Flora, pi. 55, gives a very erroneous idea of 

 this well-preserved specimen. That of the Fossil Tree, figured 

 originally in the Trans. Nat. Hist. Soc, Vol. I., p. 206, and 

 by Hutton, Foss. Flora, pi. 54, is not, I think, referable to 

 Sigillaria but to Lepidodendron. Hutton's label, " Sigillaria 

 pachyderma. P. 55." 



Loc. — Low-Main Seam, Killingworth Colliery, near Newcastle- 

 on-Tyne. (H.C. 476). 



