. Bulletin of the British Museum (Natural History). 48 WATSON AND BATTEN. Figs 35-37 Equisetites lyellii (Mantell). All x 50. 35, transverse section of cortex showing outer layer with ridged surface, and parenchymatous inner layer with notches into which outer cortex protrudes; ; see also Fig. 34. 36, showing solid cortex, dark endodermis (arrows) and ring of metaxylem; 37, of specimen showing remains of vallecular canals and small subsidiary traces (arrowed); Please note that these images are extracted from scanned page images that may have been d

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. Bulletin of the British Museum (Natural History). 48 WATSON AND BATTEN. Figs 35-37 Equisetites lyellii (Mantell). All x 50. 35, transverse section of cortex showing outer layer with ridged surface, and parenchymatous inner layer with notches into which outer cortex protrudes; ; see also Fig. 34. 36, showing solid cortex, dark endodermis (arrows) and ring of metaxylem; 37, of specimen showing remains of vallecular canals and small subsidiary traces (arrowed); 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 British Museum (Natural History). London : BM(NH)

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