|I’d Call It That||3.0||5.39||1||(Gerhard)|
sum(score * weight) /
(total weight + 1)
This looks most like a sick Heterodermia, maybe H. speciosa. Orange pigment in truly orange species is from anthraquinones (usually) which react very strongly K+ wine/red. This looks too brown. And the overall shape just has the look of Heterodermia, not Xanthoria sensu lato (which would be the prime suspect for truly orange foliose lichens).
Created: 2012-01-28 22:09:55 GMT (+0000)
Last modified: 2012-01-28 22:27:26 GMT (+0000)
Viewed: 17 times, last viewed: 2017-06-10 14:31:12 BST (+0100)