Mushroom (Agaricus sp.) is a fungus which is widely being used as food. The fruiting bodies called basidiocarps of Agaricus arise in concentric rings called fairy rings or fungal flowers. Basidiocarp is a massive structure which consists of a stalk like portion the stipe supporting at the top a broad umbrella shaped cap the pileus. Algae are simple thallose autotrophic, non-vascular plants having unicelled sex-organs and no embryo formation. Seed is mature integumented megasporangium. On the basis of embryo structure the seeds have been classified into two categories: [a] Monocotyledonous seed: The embryo has only one cotyledon. [b] Dicotyledonous seed: The embryo has two cotyledons.