46 CATALOGUE OP FOSSIL PLANTS 



Stem.— Caulis. 



53. — Calamites cannceformis, Schloth. Very large and fine compressed 

 stem, with four joints ; upper margin of internode shews a 

 whorl of long oval apertures for rootlets or branchlets ; a thin 

 coating of finely striated carbonaceous matter {Cortex) cover- 

 ing the wide ribs. Lower part of a stem, but has not the basal 

 internodes. 

 Loc— Shale above the Bensham Seam, Jarrow. (H. C. 14). 



54. Lower portion of small stem, shewing rootlets branching 



off from joints. 



Loc. — Shale above the Bensham Seam, Jarrow. (H. C. 27). 



55. Root portion of a small stem, shewing roots branching 



off from the joints. 



Loc. — Shale above the Bensham Seam, Jarrow. (H. C. 25). 



56. Compressed stem, with two joints ; each joint shewing 



two cicatrices for attachment of branches, opposite to each 

 other, and at right angles to the cicatrices on the adjoining 

 node ; round the top margin of each internode is a whorl of 

 apertures for leaflets or branchlets— apertures of an elongated 

 oval shape. 

 Loc. — Shale above the Bensham Seam, Jarrow. (H. C. 41). 



Branches and Foliage. 



57. — Calamites nodosus, Lebour, 111. Foss. Pits., pi. 3. Type. 



Very large slab, with part of a compressed stem or branch, ten 

 inches long and about an inch broad, with five joints and inter- 

 nodes. A pair of branches is attached to each joint ; those 

 on the left side, with very long internodes, send off smaller 

 branches and branchlets, the latter with whorls of Asterophyl- 

 lites leaves (A.foliosa, L. et H.) Stem covered with thin layer 

 of carbonaceous matter, and the longitudinal ribs indicated 

 but not strongly marked. Very imperfectly figured in the 

 Illustrations. 

 Loc. — Shale above the Low-Main Seam, Felling. (H. C. 114). 



58.— Asterophyllites foliosa, L. et H. Type specimen, F.F., pi. 25, f. 1. 

 Long, slender stem, giving off branchlets at the joints ; the 

 branchlets surrounded with numerous stellate whorls of slightly 

 flattened lanceolate leaves. 

 Loc. — Shale above the Bensham Seam, Jarrow, (H. C. 131). 



