Living tree-ferns of different genera. (Ad. Brong.)
- Fig. 354. Tree-fern from Isle of Bourbon.
- Fig. 355. Cyathea glauca, Mauritius.
- Fig. 356. Tree fern from Brazil.
Lepidodendron Sternbergii. Coal-measures, near Newcastle.
- Fig. 357. Branching trunk, 49 feet long, supposed to have belonged to L. Sternbergii. (Foss. Flo. 203.)
- Fig. 358. Branching stem with bark and leaves of L. Sternbergii. (Foss. Flo. 4.)
- Fig. 359. Portion of same nearer the root; natural size. (Ibid.)
Lepidodendra.—These fossils belong to the family of Lycopodiums, yet most of them grew to the size of large trees. The annexed figures represent a large fossil Lepidodendron, 49 feet long, found in Jarrow Colliery, near Newcastle, lying in shale parallel to the planes of stratification. Fragments of others, found in the same shale, indicate, by the size of the rhomboidal scars which cover them, a still greater magnitude. The living club-mosses, of which there are about 200 species, are abundant in tropical climates, where one species is sometimes met with attaining a height of 3 feet. They usually creep on the ground, but some stand erect, as the L. densum, from New Zealand ([fig. 360.]).