DEADLY FIBRE CAP / SPRING / TOXIC
Deadly fibrecaps, red staining inocybe
Meaning of Scientific classification
The name derives from the genus name Inocybe meaning fibrous head and rubescens meaning becoming red.
Could be confused with
Since it appears in spring and summer it could be confused with the St. Georges mushroom but this lacks the radial fibres and doesn’t stain red. It could also be confused with other inocybe species but as they are all considered deadly toxic and are generally avoided by foragers.
You can see from the image below of a deadly fibre cap and then st george that when the deadly fibre cap is young and its gills white there is a potential for confusing. I’ve heard people in spring say any white mushroom with white gills is safe to eat. So if you’re picking St Georges make sure to be clued up on Deadly Fibre Caps.
Fairly common in southern parts of the UK, but rare in other parts of the country.
Key features and habitat of Deadly fibre cap mushrooms
The caps are generally 3-7 cm in diameter, conical when young, flattening when older but still retaining a central umbo with streaky radial fibres. The caps are quite often split in older specimens and stain red when damaged.
The gills start whitish and gradually turn red/brown with ages. The gills stain red when damaged, are crowded and can be adnate or adnexed.
They are mycorrhizal with deciduous trees most commonly beech and hornbeam on calcareous soils.
Toxic. As the name suggests potentially deadly. They contains a deadly amount of the toxin muscarine. The antidote for which is atropine, the main toxin found in the Deadly Nightshade plant. Self-administration is not recommended!!!
Hints and tips
As most members of this family are suspected of being highly poisonous they should all be avoided.