Description: Identical in the characters of the thallus phyllocladia with var. vesuvianum (described elsewhere) but differing in stalks (pseudopodetia) which are not congested, the upper parts smooth and bare and terminating in an apple-shaped soralium. It occurs along with var. vesuvianum and other members of the genus at former mine sites or on spoil tips. North and west Ireland, also the Wicklow Mountains.

Key Identification Features:

• Thallus as in var. vesuvianum but with stalked soralia on long, bare pseudopodetia
• Hard acid rocks and mine spoil.

Original text submitted by Vince J. Giavarini

Distribution Map from NBN: Stereocaulon vesuvianum var. nodulosum at National Biodiversity Network mapping facility, data for UK.

iNaturalist: Stereocaulon vesuvianum var. nodulosum at iNaturalist World Species Observations database.