432 



THE CAKBONIFEROUS SYSTEM. 



Fig. IGl.— Sigillarice. 



A, Sir/Ularia Brownii, restored. For other illustrations of this species, see Fig. 30. 



li, S. tlegans, restored. 



B', Leaf of S. elegans. 



B-, Portion of decorticated stem, showing one of the transverse bands of fruit-scars. 



B^, Portion of stem and branch reduced, and scars nat. size. 



C, Cross section of Sigillaria Brownii (?), reduced, and portion at fJI) natural size, (a) Stem- 



bergia pith, {h^) Inner cylinder of scalariform vessels, (i^j Outer cylinder of discigerous 

 cells, with medullary rays and bundles of scalariform vessels going to the leaves 

 at (li^). (c) Inner bark, (d) Outer bark. 



D, Scalariform vessel magnified. H, S.eminens, reduced. fH') arcole, half n. size. 



E, Discigerous woody fibre, magnified. I, S. cntfvoides, half nat. size. 



F, Sigillaria Bre.tonr.nsis, ^. (/'j .\reole, u. size. K, S. planicosta,ha.\( not. &\zc.. 



G, /S'. sJriato, nat. size. I., Portion of leaf of 6'. scufeiteta. 



