Non-flowering
plants
Don't
think that there are only succulents, trees and shrubs in the desert,
don't forget there are also non-flowering plants and wildflowers! But of
the years they are hidden. So let's see what they are!
Mosses
As
deserts are so dry, it is not very suitable for mosses to grow there,
yet there are various species of moss, like those of the genus Tortulle,
especially on rocky slope and in crevices, where there is less direct
sunlight. Sometimes they just dry out completely when it is unbearably
hot, and resume when they are provided with water. This may need a few
seasons or even a year. Some species have been found to recover after
250 years without water! They can withstand temperatures as high as 55
degrees when dry.
Desert
Lichens
[
Lichens ]
They are
combinations of algae and fungi. The algal cells live within the fungi,
protected by the fungal threads, which shade them from intense
radiation. In return, the algae provides nutrition from photosynthesis
for the fungus. Lichens have no root systems, but they absorb water
vapour from the air. Lichens exist in many forms. Some are leaf-like
structures, some are branching mats, others are superficial crusts on
rocks. Like the mosses, lichens dry out when there is insufficent water
and they can tolerate both high and low temperatures.
Mushrooms
Don't
think that there are no "mushrooms" in the deserts. There are
some, but very little. They are very strange-looking and they are
poisionous. Below are some species of them.
Desert
Stalked Puffball
[Desert puffball ]
Although
this is called a puffball, it is not edible. The spore sac is oval and
it will spilt open in the middle at maturity. This mushroom is woody
Buried
Stalk Puffball

This
mushroom is often buried underground so it is very hard for us to see
it. |