Erythricium aurantiacum

Alternative names
Marchandiomyces aurantiacus

A lichenicolous fungus with orange sclerotia found on dead and dying areas of the host thallus; sexual stage not recorded in Britain. 

Identification difficulty
Recording advice

Good images required.


Described as a virulent parasite of corticolous Physcia spp., occasionally also attacking neighbouring thalli of other lichens.

When to see it

All year.

UK Status

Quite widespread in Britain but not particularly well recorded.

VC55 Status

Status in Leicestershire and Rutland not known.

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Leicestershire & Rutland Map


Yellow squares = NBN records (all known data)
Coloured circles = NatureSpot records: 2020+ | 2015-2019 | pre-2015

UK Map