Source: Etayo, J.; López de Silanes, M.E. Contribution to the Study of Lichenicolous Fungi from Northwest Iberian Peninsula (León and Lugo Provinces). J. Fungi 2024, 10, 60. https://doi.org/10.3390/jof10010060 – CC BY 4.0
Arthonia boomiana (holotype). (A,B) Apothecia of the fungus on lobes of Nephromopsis chlorophylla. (C) Ascus (water). (D) Ascus (KI). (E) Ascus with brown spores (water). (F) Epihymenium with top cells of paraphysoids. (G) Ascospores. Scales: (A,B) = 250 µm, (C–G) = 10 µm.