Why the bryophytes could not become successful land plants ?

Explanation

The land plants remain outside the water and face the adverse environmental conditions. They absorb water from the soil. Under such conditions, a successful land plant must possess deep penetrating root system for absorption of water and minerals, posses aerial foliage for photosynthesis, vascular tissues for conduction, stomata for gaseous exchange, coating of cuticle ans waxes to resist dessicatoin and mechanical tissues for strength. The bryophytes, on the other hand, do not possess all these characters of land plants. Moreover, the successful land plants produce seeds for their survival and multiplication. Therefore, the bryophytes could not become successful land plants.