Decaying stems with wood tissue in the centre. The ridges on the epidermal
cells are visible. Diameter left 1.2 mm, right 1,5
mm.
On the right a section just above a dichotomy (two xylem cylinders).
Rhynia gwynne-vaughanii: decaying stems |
Decaying stems with wood tissue in the centre. The ridges on the epidermal
cells are visible. Diameter left 1.2 mm, right 1,5
mm. |