Panaeolus foenisecii

Physical Characteristics

The photo shows a mushroom with a conical to campanulate (bell-shaped) cap that is radially striate (grooved) and light tan to brown, with a darker brown umbo (central raised part). The stipe (stem) appears slender and off-white. Gills are visible under the cap, appearing adnate (attached to the stem).

Habitat & Growing Conditions

This mushroom is likely found growing terrestrially in grassy areas, gardens, or disturbed ground, often in rich soil or on decaying organic matter. Psathyrella species are common in lawns, along roadsides, and in woodland edges.

Season & Fruiting Time

Panaeolus foenisecii is typically found from spring through autumn, especially after rain, and can persist into early winter in some regions. It often fruits in flushes during periods of warm and moist weather.

Similar Looking Species

Similar looking species include other Panaeolus species, such as Panaeolus papilionaceus, which often has a more pronounced cap margin and darker spores. Some species of Psathyrella can also look similar, but generally, their caps are more brittle. Distinguishing features include the brown, often mottled cap, and fine striations, along with its specific growth habitat.

Ecological Role

Psathyrella mushrooms are primarily saprophytic, meaning they obtain nutrients by decomposing dead organic matter such as wood, leaf litter, and other plant debris. They play a crucial role in nutrient cycling in their ecosystems by breaking down complex organic compounds, making nutrients available for other organisms.

Identified on: 7/24/2025

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