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Parasitic on the soil-dwelling lichen Baeomyces rufus, A. grisea is easily identified by its dark grey-green colour which gives the host a sickly appearance. It is not uncommon to find it with pimple-like pycnidia only. It occurs wherever the host is found, such as on exposed soil over siliceous rocks, most commonly in hilly areas. In Ireland: Brandon Mountains, County Kerry and Comeragh Mountains, Waterford.
Original text submitted by Vince J. Giavarini
|Simms, M. J., (2016). Arthrorhaphis grisea Th.Fr.. [In] LichenIreland. |
http://www.habitas.org.uk/lichenireland/species.asp?item=18180 Accessed on 2016-12-10.