Irish lichens
|
Order: Lecanorales Family: Lecanoraceae
Species: Lecanora horiza Photos: Rock Island, Co. Cork, SW Ireland. Chemical results: K+/- pale yellow, C-. UV+ pale orange Slightly lumpy or irregularly warted whitish thallus with prominent large, glossy, chestnut-brown apothecia that are often very crowded. The epithecium has an upper layer of fine granules that do not dissolve in K. Spores 9-15 x 6-8.5 µm. Found on rocks, the vertical side of limestone gravestones and memorials and on basic-barked trees When corticolous can be confused with Lecanora chlarotera, saxicolous specimens with Lecanora campestris |
Lecanora horiza January 2012