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The gametophyte generation is dominant, conspicuous and independent. It may be thalloid or organized into leaf-like structures (phyllids), which are not true leaves; lack cuticle and stomata.
The sporophyte generation consists of a stalk and capsule (together called the sporogonium) and is as conspicuous as the gametophyte but dependent on it for its lifetime, it cannot live an independent existence. (Lower part of moss capsules may have been photosynthetic)
The ovum remains in the archegonium and spermatozoids swim to it by chemotaxis. Spores dispersed by a mechanism which ensures dispersal in dry weather only.
No vascular tissue in either generation. Root-like structures are rhizoids.
Return to Main Menu Division Bryophyta