1
Observations
11 months ago
Last Observed
Panaeolus acuminatus, also known as Panaeolus rickenii, is a species of mushroom in the family Bolbitiaceae. This species contains small amounts of serotonin, 5-HTP, and tryptophan.
Source: Wikipedia
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Distribution
Widespread and common
Habitat
On soil or dung amongst grass in meadows and pastures
Cap
| Colour | |
|---|---|
| Shape | Parabolic, Conical |
| Surface | Smooth |
| Width | 0.5 - 4 cm |
| Margin | Striate |
Gills
White margins
| Colour | |
|---|---|
| Attachment | Adnate |
| Spacing | close |
Flesh
Thin
| Colour | |
|---|---|
| Odour | Faintly mushroom |
Stem
Finely striate, often with droplets near top of stem
| Colour | |
|---|---|
| Texture | Smooth |
| Shape | Cylindric |
Spores
Rhomboid in face view, ellipsoid in side view, with central germ-pore
| Colour | |
|---|---|
| Shape | Ellipsoid |
| Ornamentation | Smooth |
| Size | 13-15 x 9-12 μm |
Microscopic Features
| Cheilocystidia | Lageniform |
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Confirmed
Unconfirmed
Classification
- ↳ Phylum: Basidiomycota
- ↳ Subphylum: Agaricomycotina
- ↳ Class: Agaricomycetes
- ↳ Subclass: Agaricomycetidae
- ↳ Order: Agaricales
- ↳ Family: Galeropsidaceae
- ↳ Genus: Panaeolus
Synonyms
- Agaricus acuminatus Schaeff.
- Agaricus caliginosus Jungh.
- Panaeolus acuminatus (Schaeff.) Quel.
- Panaeolus caliginosus (Jungh.) Gillet
- Panaeolus rickenii Hora
Reference Sources
T. Læssøe, J. H. Peterson (2019) Fungi of Temperate Europe Vol. 1. Princeton University Press.
E. Wood, J. Dunkelman (2025) Grassland Fungi A Field Guide. Monmouthshire Meadows Group.
G. Kibby (2021) Mushrooms and Toadstools of Britain & Europe Vol. 3. Geoffrey Kibby.
