Evolutionary history of plants phloem on the outside. Since xylem cells comprise dead, lignified tissue, subsequent rings of xylem are added to those already present, forming wood. The first plants to develop secondary growth and a woody habit, were apparently the ferns, and as early as the Middle Devonian one species, "Wattieza", had already reached heights of 8 m and a tree-like habit. Other clades did not take long to develop a tree-like stature. The Late Devonian "Archaeopteris", a precursor to gymnosperms which evolved from the trimerophytes, reached 30 m in height. The progymnosperms were the first plants to develop true wood, grown from
Seeds of Hope a training aircraft that was to have been supplied, along with 23 other jets, to the New Order regime of Indonesia. Accused of causing, and conspiring to cause, criminal damage, with a maximum ten-year sentence, they argued that what they did was not a crime but that they ""were acting to prevent British Aerospace and the British Government from aiding and abetting genocide"". Meaning the one taking place in East Timor. They were found not guilty of criminal damage at Liverpool Crown Court, after a jury deemed their action was reasonable under the Genocide Act 1969. Seeds of Hope Seeds