Systematic position in plant classification: Agaricus is a fungus of the pylum-Basidiomycota under the class- Basidiomucetes. It is commonly known as mushroom.
(i) Grows as saprophyte in decaying organic substances, such as cow dung, crop field, tree trunk, heap of hays etc
(ii) Few species of Agaricus canalso live in other organisms as parasites.
Structure: A complete Agaricus can be divided into two parts
I) Main body or mycelium
II) Fruiting body or basidiocarp
Mycellium: It consists of numerous white coloured hyphae of transverse partition walls
Fruiting body: Fruiting body is related to reproduction and is situated erectly above the soil It consists of an umbrella like pileus and a stem like stipe.
There are some membranous substances hanging from the lower part of pileus, known as Gills and a circular part situated at the tip of the stipe called Annulus.
Nutrition: They Meet their nutrition demand by absorbing decaying organic substances.
Reproduction: Usually it reproduces by Sexual method.
Economic importance: By the name mushroom, it is used as a delicious food in different countries of the World h is cultivated in different countries, including Bangladesh and sold in the market in both fresh and preserved forms.