Parasitic Bolete - Pseudoboletus parasiticus

    Alt Name
    Xerocomus parasiticus

    The cap is hemispherical and downy when young, later flat, yellowish brown or darker and up to 5 cm in diameter. The flesh is pale yellow with a mild taste and the spores are olive. The stem is pale yellow to olive. Pseudoboletus parasiticus is unlikely to be confused with any other species, because it occurs only with the Common Earthball, Scleroderma citrinum.

    Similar Species

    Whilst the bolete itself is not particularly distinctive, its growth from an Earthball is diagnostic.

    Identification difficulty

    Growing with Common Earthball - Scleroderma citrinum

    When to see it

    August to end of October.

    Life History

    It occurs only with the Common Earthball, Scleroderma citrinum and is thought to be parasitic on that species.

    UK Status

    Widespread, though infrequent, in the southern half of Britain. Quite scarce further north.

    VC55 Status

    Uncommon in Leicestershire and Rutland where there are only a handful of records.

    Leicestershire & Rutland Map

    MAP KEY:

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

    UK Map