. Studies in fossil botany . Paleobotany. \, Fig. 92.—A and B, Sigillaria spinnlosa, A. Tangential section of outer cortex, showing leaf-trace, with the parichnos (pa) on either side. In the leaf-trace; x, primary xylem; below this the secondary xylem (tr) and phloem, then a sclerenchymatous strand ; s, sheath of bundle. Magnified. B. Leaf, showing the lower surface, and the scar (sc) at base; on the scar the prints of the bundle and parichnos are seen. m, midrib of leaf; g, one of the stomatiferous furrows. Nat. size. C. £. latifoiia. Transverse section of leaf, x, xylem ; s, sclerenchyma; er


. Studies in fossil botany . Paleobotany. \, Fig. 92.—A and B, Sigillaria spinnlosa, A. Tangential section of outer cortex, showing leaf-trace, with the parichnos (pa) on either side. In the leaf-trace; x, primary xylem; below this the secondary xylem (tr) and phloem, then a sclerenchymatous strand ; s, sheath of bundle. Magnified. B. Leaf, showing the lower surface, and the scar (sc) at base; on the scar the prints of the bundle and parichnos are seen. m, midrib of leaf; g, one of the stomatiferous furrows. Nat. size. C. £. latifoiia. Transverse section of leaf, x, xylem ; s, sclerenchyma; er, trans fusion-tissue; gf stomatiferous furrows, lined with hairs. Magnified. All after Renault. function, fuse with each other in every direction, they form a network, whether seen in tranverse or tangential. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Scott, Dukinfield Henry, 1854-1934. London, A. and C. Black


Size: 2023px × 1235px
Photo credit: © The Book Worm / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: ., bookcentury1900, bookdecade1900, bookpublisherlondonaandcblack