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The thallus of this species is a pale grey, scurfy crust. The spherical discs (perithecia) are buried in deep pits in limestone so need to be excavated with the tip of a razor blade before viewing under the microscope. The colourless spores are grouped together in sacs (asci) of eight. Cylindrical algal cells are present within the discs. It is a species of hard limestones, usually at exposed sites but in County Clare, at the only locality for the species in Ireland, it was growing in a more sheltered situation.
Original text submitted by Vince J. Giavarini
|Simms, M. J., (2016). Staurothele bacilligera (Arnold) Arnold. [In] LichenIreland. |
http://www.habitas.org.uk/lichenireland/species.asp?item=20636 Accessed on 2016-10-24.