Order: Lecanorales       Family: Parmeliaceae Species: Pseudevernia furfuracea Growth type foliose 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