Pitting in Psilophyton dawsonii, an Early Devonian Trimerophyte

This publication has 4 references indexed in Scilit:

• SAWDONIA ORNATA: A NEW NAME FOR PSILOPHYTON PRINCEPS VAR. ORNATUM
  Taxon, 1971
• Psilophyton forbesii, a New Devonian Plant from Northern Maine
  Bulletin of the Torrey Botanical Club, 1968
• VIII. On the spines, sporangia, and spores of Psilophyton princeps , Dawson, shown in specimens from Gaspé
  Philosophical Transactions of the Royal Society of London. Series B, Containing Papers of a Biological Character, 1931
• On Fossil Plants from the Devonian Rocks of Canada
  Quarterly Journal of the Geological Society, 1859