Small Moss Oysterling

Small Moss Oysterling - Arrhenia retiruga

Description

A very small and delicate fungus that is parasitic on mosses.  Kidney or fan shaped, often with lobed margin, pale greyish, beige or nearly white.  It is attached to the substrate by the upper surface of the felty cap, either centrally or offset. The gills are reduced to wrinkles, and there is no stem.

Similar Species

Arrhenia lobata is very similar, associated with mosses in bogs close to water; it has not been recorded recently in VC55.  Rimbachia neckerae is similar but with shining white fruit bodies, and has not been recorded in VC55.

Identification difficulty
Recording advice

Note colour, which may not be evident in a photograph. Photograph in its habitat, from several angles, and also in detail showing fertile wrinkled surface.  Note habitat and substrate.

Habitat

on moss in shaded damp places, including lawns

When to see it

Autumn to Spring.

UK Status

It seems to be uncommon in Britain but is probably overlooked.

VC55 Status

Status in Leicestershire and Rutland not known.

Leicestershire & Rutland Map

MAP KEY:

Yellow squares = NBN records (all known data)
Coloured circles = NatureSpot records: 2025+ | 2020-2024 | pre-2020

UK Map

Additional images

No additional images available for this species.

All NatureSpot records