Excavatum Group

Truffles in the excavatum group can have favourable aromas but are not typically consumed by humans, probably because of their thick and hard peridium. There is only one British member of this group.

Hollowed Truffle (Tuber excavatum)

Tuber excavatum (Excavatum group)
Tuber excavatum (Hollowed Truffle) – Carlo Vittadini – Monographia Tuberacearum (1831)
Tuber excavatum
Tuber excavatum (Hollowed truffle) – found in Surrey.
Common Name:Hollowed truffle.
Scientific NameTuber excavatum Vittad.
Etymology:From Latin excavatus, hollowed out.
Detailed information:Trufamania
Peridium:Thick and hard.
Gleba:Brown-ochre to reddish brown as they mature. Light coloured branching veins.
Shape:Irregular with a cavity in the base.
Size:Most commonly, up to 4 cm across.
Ripening period:Autumn.
Distribution:In Britain, most frequent in beech woods in light calcareous soil and appearing restricted to southern England. In Europe also under oak.
Distribution of published Hollowed Truffle (Tuber excavatum) records
Distribution of published Hollowed Truffle (Tuber excavatum) records. Data from Fungal Records Database of Britain and Ireland (British Mycological Society) via Mycology Collections data Portal (MyCoPortal) licensed under CC BY-NC 4.0. Contains OS data © Crown Copyright and database right (2024).