Mycena polygramma, commonly known as the grooved bonnet, is a species of mushroom in the family Mycenaceae. The inedible fruit bodies are small, pale gray-brown mushrooms with broadly conical caps, pinkish gills. They are found in small troops on stumps and branches of deciduous and occasionally coniferous trees.
Source: Wikipedia
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Distribution
Widespread and common
Habitat
Solitary or in small groups on branches or near the base of tree trunks. Usually Corylus or Quercus
Cap
| Colour | |
|---|---|
| Shape | Conical, Campanulate, Umbonate |
| Width | 2 - 4.5 cm |
| Margin | Sulcate |
Gills
Interveined. Sometimes with grey-brown spots
| Colour | |
|---|---|
| Attachment | Adnexed |
Flesh
| Colour | |
|---|---|
| Taste | Mild |
Stem
With fine silver lines running down the stem, visible with hand lens
| Colour | |
|---|---|
| Height | 5 - 8 cm |
| Width | 1 - 5 mm |
| Texture | Smooth |
| Shape | Cylindric |
Spores
| Colour | |
|---|---|
| Type | amyloid |
| Shape | Broadly ellipsoid |
| Ornamentation | Smooth |
| Size | 8-10.5 x 5.5-7.5 μm |
Microscopic Features
Up to 55 long with occasional finger-like protrusions
| Cheilocystidia | Fusiform |
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Classification
- ↳ Phylum: Basidiomycota
- ↳ Subphylum: Agaricomycotina
- ↳ Class: Agaricomycetes
- ↳ Subclass: Agaricomycetidae
- ↳ Order: Agaricales
- ↳ Family: Mycenaceae
- ↳ Genus: Mycena
Synonyms
- Agaricus polygrammus Bull.
- Mycena polygramma (Bull. ex Fr.) Gray
- Mycena polygramma f. candida J.E. Lange
- Mycena polygramma f. pumila J.E. Lange
- Mycena polygramma f. pumila Lange
Reference Sources
T. Læssøe, J. H. Peterson (2019) Fungi of Temperate Europe Vol. 1. Princeton University Press.
G. Kibby (2020) Mushrooms and Toadstools of Britain & Europe Vol. 2. Geoffrey Kibby.
