Family: Unknown Species: Intralichen christiansenii Lichenicolous fungus,photographs on Caloplaca cerinella Photos: Killarney NP, Co. Kerry, SW Ireland. Conidiophores usually in hymenium of host lichen. The conidia are formed in chains, 0-1 septate when mature, pale brown and smooth-walled, 5-8(-9) x 4-6(-7) µm. Micrographs below. A hyphomycete forming in apothecia of Caloplaca and Candelariella species, eventually blackening them. Also recorded from Lecanora and Micarea species, but owing to the broad host range it is likely that a number of similar, but undescribed species are involved. Similar: Intralichen lichenum, conidia simple

Micrographs





Intralichen christiansenii. August 2024