118 CATALOGUE OP FOSSIL PLANTS 



228. — Sigillaria reniformis (Woodcut No. 5). 



229. 



■ I": ; 



Woodcut No. 5. 

 Impression of a very small portion of the outer cortex of a 

 single rib of a stem similar to No. 229. The impression is 

 finely longitudinally striated, and has four leaf-scars or foliar 

 cicatrices, which are large, sub-ovate in the compressed state, 

 and with a rounded slightly angular appearance on the sides. 

 There is a small raised tubercle half-way between the central 

 part of the scar and the upper margin, and on each side of it 

 an elongated curved line, which are impressions of fissures by 

 which vessels have passed through to the leaves. The foliar 

 scars are about half an inch distant. The width of the com- 

 pressed rib three-quarters of an inch fully. 

 Loc. — Shale above the Bensham Seam, Jarrow. (H. C. 470). 



One rib, nearly an inch wide and eight inches long, with 



seven finely-preserved sub-ovoid leaf -scars, in the upper part 

 of which scar are two longitudinal, crescent-shaped slits, with 

 a small circular depression between them. The scars are large, 

 and three-quarters of an inch from each other, much com- 

 pressed, and the original shape slightly enlarged and distorted 

 by pressure during mineralization. 

 Loc. — Shale above the Bensham Seam, Jarrow. (H.C. 467). 



