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A Typical Bryophyte Life Cycle

A Typical Bryophyte Life Cycle - A Typical Bryophyte Life...

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A Typical Bryophyte Life Cycle Although individuals of the three bryophyte groups differ from one another morphologically and in  other details, the  moss life cycle shown in Figure 1  is typical  of the group in general.  As do all plants, bryophytes alternate a gametophytic generation with a sporophytic one (a sporic  meiosis, a life cycle in which meiosis gives rise to spores, not gametes). Each of the haploid (1  n spores is capable of developing into a multicellular, haploid individual, the gametophyte. The first  structure formed from spores in most mosses and many liverworts is a filamentous, algal-like, green  protonema (plural, protonemata). In some mosses the protonemata are long lived with rhizoids and  aerial filaments and they often form dense green mats in suitable sites. Cells in the protonema, 
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