Home Browse Search Help Tree Contents Extras Spermatopsida Show Printable Version Seed Plants Peter Crane * Please note: The tree on this page is printed in a lighter color to indicate that it should be interpreted with caution because it has been taken from the literature with little critical evaluation by Tree of Life authors, editors, or peer-reviewers. Once the page has been revised by an ...

The story of the oldest land plants (part 2) ...

The leaf of the seed fern tree Neuropteris ...

Transverse section of a stem of Rhynia gwynnevaughanii Rhynie , Scotland Lower Devonian Diameter 1, 3 mm Stoma Back ...