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Order: Lecanorales Family: Parmeliaceae
Species: Pseudevernia furfuracea Photos: On Larch. Ballyvourney, Co. Cork, SW Ireland. An ascending or pendant, strap-like thallus, the light greyish upper surface isidiate or with small lobules. The lower surface of older lobes is black. Occurs in upland areas on siliceous rocks, acid-barked trees (e.g conifers) and fences, mainly in northern and eastern Ireland. There are two chemical races; var. furfuracea with the medulla C-, var. ceratea, medulla C + rose-red. Similar: Evernia prunastri. Isidia absent, under-surface whitish |
Pseudevernia furfuracea. On Larch twig. February 2011