Ancient Psilophytes had branched green stems with no true
roots or proper leaves, but they developed an internal
system of tubes to carry water and foodstuffs. This made
it possible for plants to grow much bigger than the little
ground-hugging bryophytes. This picture is a section
through the stem of a modern whisk fern showing the
Order this Web Page!
Post Office Box 225, Parry Sound, Ontario, CANADA P2A 2X3
Copyright (C) Zeuter Development Corporation, 1996. All rights reserved.