Order: Lecanorales       Family: Incertae sedis Species: Lecania naegelii Growth type crustose. Immediately below identified by Brian Coppins Photos: On Ash and Oak twigs. Co. Cork, SW Ireland. Thallus pale-yellowish, green or greyish-green, often forming small patches among other species. Tiny, flat to convex apothecia (0.2-0.6mm), the discs white, bluish, brown-grey or black, often piedbald when wet. Weakly developed thalline margins, usually paler than discs. Apothecia are best seen with a hand lens. Spores often bent, 3(-5) septate, 13-24 x 4-5 µm. Microscope photographs below. Usually found in Xanthorion communities on nutrient-rich twigs and bark. Very frequent on Ash, widespread but under-recorded in Ireland. Chemical reactions negative. Similar: Micarea peliocarpa, C+ red

Microscope photograph: immature asci


Section through apothecium

Lecania naegelii January 2010 and December 2011