FOSSIL FLORA OF SOUTHERN PORTION OF THE YORKS. COALFIELD. 357 
Stigmaria ficoides Sternb. 
Plate XL., Fig. 1, and Plate XLL, Fig. 4. 
1902. Stigmaria ficoides, Kidston, Proc. Yorls, Geol. and Pohjt. Soc, 
Vol. XIV., pt. III., p.. 357, pi. 52. fig. 3. 
1911. Stigmaria ficoides, Kidston, Mem. Mus. R. Hist, Xat. Belgique, 
Vol. IV., p. 212 (contains a full synonymy). 
The specimen figured on Plate XL., fig. 1, and enlarged on Plate 
XLL, fig. 4, represents a very rare state of jjreservation of this very 
common fossil i)lant, of which ca.sts of the external surface are the 
most abundauv ui p.ant remains in the Coal Measures. The specimen 
( onsists of a longitudinal impression of the woody cylinder seen in 
tangential section. 
The transversely oblong areas, seen especially at the sides of the 
specimen, are the woody bundles frequently anastomosing with one 
another, and in many cases broken off short, since the plane of the 
impression does not coincide with the planes of the bundles. In 
the enlarged figure (plate XLL, fig. 4). these oblong areas are seen 
to possess a delicate but distinct and close ribbing. These ribs are, of 
course, the impres.sions of the tracheids themselves. 
Kidston (see above) has figured a similar specimen from Lanark- 
shire, which, however, has split along a radial plane, and shows a cast 
of the pith cavity. In the present case the pith cast lies behind the 
impression of the woody bundles figured here. 
BIBLIOGRAPHY. 
Arber, E. a. X. (1903). •• The Fossil Flora of the Cumberland Coal- 
field, and the Palseobotanical Evidence with regard to the Age 
of the Beds." Quart. Journ. Geol. Soc., Vol. .LIX., p. 1, 1903. 
Arber, E. A. X. (1909). " On the Fossil Plants of the Waldershare 
and Fredville Series of the Kent Coalfield."" Quart. Journ. Geol. 
Soc, Vol. LXV., p. 21, .1909. 
Arber, E. A. X. (1910). On the Fo.ssil Flora of the Southern Portion 
of the Yorkshire Coalfield in Xorth Derbvshire and Xottingham- 
shire."' Proc. York. Geol. Soc, Vol. XVII.. pt. II., p. 132, 1910. 
Arber, E. A. X. (1912). " A Xote on .some Fo.ssil Plants from the 
Kent Coal-field."' Geol. Mag., Dec. 5, Vol. IX., p. 97, 1912. 
