Agarius bisporus is an edible mushroom. It is under phylum Basidiomycota. It has gills as spore-bearing surfaces. The gills where hymenium found are perpendicular to the gravity. Also, it is a pseudoangiocarpic development and the marginal veil and annuls are still remained in the bottom edge of the pileus. A single basidium of A. bisporus produce 2 dikaryotic spores.

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