Reports

Septal Pores in Prototaxites, an Enigmatic Devonian Plant

Science  23 Jan 1976:
Vol. 191, Issue 4224, pp. 287-288
DOI: 10.1126/science.191.4224.287

Abstract

Prototaxites southworthii. an Upper Devonian, nonvascular plant of unknown affinity that is commonly ascribed to the brown algae, has filaments with septal pores. These superficially resemble various pores and pit connections of the higher algae and fungi and suggest that very elaborate cell wall structure had evolved by Devonian times.