. Fossil plants : for students of botany and geology . Paleobotany. X] RHIZOME OF CALAMITES. 323 is another feature to which attention must be drawn. On the casts shown in -fig. 82 there is a circle of small oval scars situated just below the nodes, these are clearly shown at c, c, c. Each of the scars is in reality a slight projection from the upper end of an internodal ridge. As the ridges correspond to the broad inner faces of medullary rays, the. Fig. 82. Branched rhizome of Calamites. J nat. size. C, C, nodes showing casts of infranodal canals. From a specimen in the Manchester Museum, Ow
. Fossil plants : for students of botany and geology . Paleobotany. X] RHIZOME OF CALAMITES. 323 is another feature to which attention must be drawn. On the casts shown in -fig. 82 there is a circle of small oval scars situated just below the nodes, these are clearly shown at c, c, c. Each of the scars is in reality a slight projection from the upper end of an internodal ridge. As the ridges correspond to the broad inner faces of medullary rays, the. Fig. 82. Branched rhizome of Calamites. J nat. size. C, C, nodes showing casts of infranodal canals. From a specimen in the Manchester Museum, Owens College. 21—2. 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 Seward, A. C. (Albert Charles), 1863-1941. Cambridge : University Press
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