The Anatomy of Rotoxylon dawsonii comb. nov. (Cladoxylon dawsonii) from the Upper Devonian of New York State

  title={The Anatomy of Rotoxylon dawsonii comb. nov. (Cladoxylon dawsonii) from the Upper Devonian of New York State},
  author={Jennifer Cordi and William Stein},
  journal={International Journal of Plant Sciences},
  pages={1029 - 1045}
  • J. CordiW. Stein
  • Published 1 November 2005
  • Environmental Science
  • International Journal of Plant Sciences
Cladoxylon dawsonii (Dawson) Read was reexamined by sectioning and analysis of a portion of Dawson’s original specimen. The primary xylem consists of 18 radially oriented and elongate primary xylem ribs. Toward the center of the system, some xylem ribs are laterally continuous with adjacent ribs, forming elongate xylem segments, whereas others appear discrete. Order of xylem maturation is mesarch, with one to three protoxylem strands located near the tip of each primary xylem rib. Primary… 

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    Transactions of the Royal Society of Edinburgh
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