Huvenia

Huvenia is a genus of extinct plants of the Early Devonian (Pragian or Siegenian stage, around {Period span/brief|Pragian}), found in slate deposits of the Rhenish Massif. The sporophyte generation consisted of leafless stems (axes), which appear to be flattened, and which branch dichotomously. The strand of conducting tissue contains simple trach...
Found on http://en.wikipedia.org/wiki/Huvenia
No exact match found