Order: Acarosporales       Family: Acarosporaceae Species: Sarcogyne regularis Growth type crustose Photos: On concrete. Co. Cork, SW Ireland. Thallus thin or immersed, apothecia sometimes +/- sunken. The red-brown or blackish discs are usually bluish-grey pruinose. Asci contain 100-200 spores, the spores simple, 3-5(-6) x 1.5-2 µm. Microscope photographs below. A pioneer species on calcareous walls, concrete, pebbles and abestos-cement. Most frequent in lowland areas. Similar: Clauzadea monticola. Discs also reddish when wet but never pruinose. Asci 8-spored.

Microscope photographs



Sarcogyne regularis April 2012