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Last edited at 4:16AM on 5/13/2011
Bryophytes are non vascular land plants. Usually they are small and are normally confined to environments that are humid or at least seasonally moist. What makes Bryophytes plants to adapt land habitat is that they have Multicellular plant body and conservation of water, this enables them to reduce cell surface that are exposed to dry land conditions. They also have modified photosynthetic tissue that helps in absorption of carbon dioxide without losing much water and exposure to light.
The first land plants to colonize land were the bryophytes.They is generally thought to have evolved from green algae. The bryophytes are poorly adapted to life on land and are mainly confined to damp shady places.
while they are poorly adapted to life on land and are still tied to water for reproduction, it is possible to exist in a terrestrial environment due to its cell wall which prevents the cell from desiccation