Lichens of Wales

Arthonia atlantica

<em>Arthonia atlantica</em>

Arthonia atlantica

Description & Identification

Thallus effuse (spread out and flattened) or forming mosaics with other lichens. White to pale grey, matt, cracked-areolate (crazy-paving like). Apothecia more or less immersed in the thallus, irregulalry rounded (to 0.2mm dia) though more usually elongate or stellate, often joining to form an irregular reticulum (network). 

Records from Wales
Location Grid Reference Last Rec'd Recorder SSSI
Cardigan: Coedmor NNR SN14, SN24 1996 A. Orange & P. Wolseley Yes
Caernarfon: Nantgwynant SH65 1973 A. Pentecost Yes
Meirionydd: Porthmadog SH58274107 2002 A. Orange No
Pembroke: Skomer Island - North Castle SM7305 1750-1996 Unknown Yes
Radnor: Coed Aberedw SO0747 1960 Unknown Yes


NBN Taxon Key