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For millions of years water plants were the only kind of plants that were found on Enod. This slowly began to change as these plants found themselves in and out of water as a result of the constant rise and fall of the Enod's ocean levels. Water plants that were caught out of water often died. But those plants that were able to survive short exposure to air, and Nuz's ultra violet rays, slowly began to adapt and change their genetic and physical structure. As this cycle repeated itself, the amount of time that laminaria and chlorestem were able to survive out of water slowly increased. These slow evolutionary steps allowed both of these plants to slowly spread throughout Enod's diverse land environments. During their long evolution from aquatic ancestors, vascular plants plants accumulated many terrestial adaptations. |
One
of the first and most noticeable change that occurred to the
photosynthia cells was the development of a cellulose cell
wall. This not only allowed it to store carbohydrates such
as starch, but as the cell evolved into a stem like plant,
it provided the strength required to differentiate it into a
stem. As time passed, these fibers formed an anchor like
feature that the plant could use to support itself and begin
to absorb some of the minerals that are often found on the
floor of oceans, rivers and lakes. The whole genetic
structure of future Photosynthia was changed
forever.
The
amount of time that photosynthia was able to survive out of
water increased with the passing of time. This was due in
part to the development of a waxy residue that coated the
plant's surface. This residue increased the amount of time
it was able to survive out of water. It helped the plant
retain moisture and prevented the ultraviolet rays from
harming it. Some cells evolved into tiny specialized
gate-keepers known as stomata cells. These tiny pores
allowed it to exchange carbon dioxide and oxygen between the
exterior of the plant and the surroundings. This newly
evolved
photosynthia
became known as photostem. 
This
evolutionary lineage brought about adaptations that made it
possible to live permanently above the water line. Photostem
interior and exterior structure developed. The cells located
near the ground differentiated into a complex root system.
This allowed the plant to become better at absorbing water
and new minerals from the soil. Waxy cuticles and a new
reproductive organs made colonization on Enod possible. As
generations of photostems evolved and became better adapted
to the arid environment, they improved their vascular stem
and root system. The vascular system allowed the plant to transport water to all parts of its structure. This new feature allowed
the plant to grow larger and taller to be able to capture
more Nuz sun rays.
Chlorestem
Adapts To Land
As
chlorestial's inner structure developed, it became better at
absorbing water from the soil. This made it less dependent
on being submerged in water for its survival. As generations
of chlorestial evolved and became better adapted to the arid
environment, they improved their vascular stem and root
system. The vascular system allowed it to transport moisture
to all of the plant's cells and the root system with numerous
hair-like parts that became specialized in absorbing water
from the soil. This new feature allowed the plant to grow
larger and taller to be able to capture more Nuz
rays.