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Home arrow entries arrow E arrow endosporic gametophyte

endosporic gametophyte

A gametophyte that develops within a spore. For example, the female gametophyte of Selaginella is contained within the megaspore and at maturity only a portion, bearing the archegonia, is exposed through the spore wall. Such gametophytes are better able to withstand dry conditions and this pattern of development may be seen as a step in the evolution of the seed habit.

 
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