P066Ho, chert from Ruedigsdorf, detail
Chert fracture face, detail, two cortex imprints superimposed
(faintly seen on the left, more distinctly
on the right), with Syringodendron aspect: paired markings of conducting strands
in quincunx array,
also lengthwise running narrow strands, direction of trunk from below right
towards above left,
uncommonly large marking above right, (Let the mouse move over the picture to
help you see.)
coll. KRETZSCHMAR/Chemnitz, width of picture ~ 8cm.