FROM THE HUTTON COLLECTION. 57 



will give a good idea of this singular plant, which there cannot 

 be a doubt is closely allied to the foregoing species of Brongniart. 

 Plate 42 of the "Illustrations" is only an enlarged drawing of 

 plate 43. No. 89 is a very large broad-spreading leaf or frond, 

 which appears to be the basal part of this plant. The upper 

 margin, which does not appear to be perfect, shews a tendency 

 to form long filamentary processes or elongations, as in the figures 

 quoted. This plant forcibly reminds one of the Liverworts in 

 its mode of growth and general appearance. 



The Type-specimen of ScMzopteris adnascens, L. et H., Fossil 

 Flora, pis. 100, 101, from the Whitehaven Coal-field, is in the 

 Collection of the Natural History Society, and will be specially 

 mentioned in the second part of these Contributions to the Coal- 

 measure Flora. 



? RHODEA, Presl. 



Rhodea Kirkbyi, n. s. 



Type — Algse or Rootlets, BinneyetKirkby, Q. J. Geol. Soc. 



Lond., Aug., 1882, 

 Vol.38, p. 251, pi. 6. 

 90. — Bifurcating stem. 



A small portion of stem bifurcating twice, but imperfect at 



the top ; stem very compressed and smooth. 



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



91. Several fragments of bifurcating stems similar to the last 



(No. 90), and probably the same species. 



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



Remarks. — I have compared the two specimens Nos. 90, 91, 

 with the specimens figured by Mr. J. W. Kirkby in the Quarterly 

 Journal of the Geological Society, London, and I find no point 

 of difference. No one can dispute that they bear a strong re- 

 semblance to what Stur, in the Culm Flora, Heft I., considers 

 to be the leaves of Arcliceocalamites radiatus, especially the fig. 6 

 of taf. 4, but this may and probably is only resemblance, and 

 they also have a much stronger resemblance to Stur's Rhodea 

 gigantea, Culm Flora, Heft I., taf. 11, f. 2. The presence of a 

 small vessel traversing the larger part of the stem, and bifurcating 



