Arthonia breussii F.Berger & E.Zimm.


Photo by E. Zimmermann. -Source: Berger F., Zimmermann E. 2025. Contribution to the knowledge of the lichenicolous mycobiota of the Alps II. – Six new species from Austria and Switzerland. Herzogia, 38, 1: 51- 69. Courtesy of the authors
Austria, Upper Austria, Bez. Kirchdorf, Spital am Pyhrn, Naturschutzgebiet Warscheneck Süd, am Wanderweg ''218'', old Pinus cembra-Larix decidua forest, 1660 m, 47°38'29''N/14°15'42''E, MTB 8351, on upper cortex of Placidium cf. squamulosum on earth filled crack, 30.6.2010, Berger
Ascomata on Placidium cf. squamulosum - Holotype. Scale bar: 1 mm