protonema stages is found in ?
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The leafy stage in some mosses develops from a lateral bud in the secondary protonema. It is a small leafy structure consisting of rhizoid, leaves and stem. It bears the sex organs antheridia and archegonia. Whereas, Protonema is the gametophytic phase of mosses directly develops from haploid spores. It is thalloid, small, inconspicuous, often photosynthetic phase.
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protonema stage is found in mosses.
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