Agaricus macrosporus

Agaricus alberti

Agaricus macrosporus is a species of mushroom belonging to the genus Agaricus, within the family Agaricaceae. This species is notable for its large spores, from which its name is derived; "macrosporus" translates to "large spored". The Agaricus genus is a significant group within the Basidiomycota division, encompassing a variety of species, including the well-known Agaricus bisporus, commonly known as the button mushroom or portobello mushroom.

Description

Agaricus macrosporus features a cap that can reach up to 15 cm in diameter, initially spherical before flattening out with age. The cap's surface is typically white, though it may develop brownish scales as the mushroom matures. The gills are free from the stem, starting out pink and gradually turning chocolate brown as the spores mature. The stem of the mushroom is sturdy, with a ring that remains as a remnant of the partial veil that once enclosed the gills of the immature fruiting body.

One of the distinguishing features of Agaricus macrosporus is its large, ellipsoid spores, which measure significantly larger than those of many other species within the Agaricus genus. This characteristic is a key identification feature.

Habitat and Distribution

Agaricus macrosporus is primarily found in grasslands and open woodlands, favoring calcareous soils. It is a saprotrophic species, deriving nutrients from decomposing organic matter. This mushroom is more common in Europe, particularly in regions with suitable habitats that meet its growth requirements.

Edibility

While Agaricus macrosporus is considered edible, it is crucial to exercise caution when foraging for wild mushrooms due to the risk of confusing them with toxic look-alikes. Proper identification by an experienced mycologist is recommended before consumption. The mushroom is noted for its pleasant taste and can be used similarly to other edible Agaricus species in culinary applications.

Conservation

The conservation status of Agaricus macrosporus varies by region, depending on local habitat conditions and pressures. While not globally listed as endangered, habitat destruction and pollution can impact local populations. Efforts to preserve natural habitats are essential for the conservation of this and other mushroom species.

See Also

• Mycology
• Edible mushroom
• Saprotrophic nutrition
• Conservation biology