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REFERENCES

  • Beck, C. B. (1958). Levicaulis arranensis, a lycopsid axis from the Lower Carboniferous of Scotland. Trans. roy. Soc. Edinb., 63, 445.
  • Eggert, D. A. (1961). The ontogeny of Carboniferous arborescent Lycopsida. Palaeontographica, B108, 43.
  • Kisch, M. H. (1913). The physiological anatomy of the periderm of fossil Lycopodiales. Ann. Bot., Lond. 27, 281.
  • Smith, D. L. (1962). The stems of three species of lepidodendrid from the Scottish Lower Carboniferous. Ann. Bot., Lond., 26, 533.