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Tree Lichen

Observed: 10th January 2010 By: jereve
Lichen 1
Description:

Lichen growing on a crab apple tree

Identifications

No identification made yet.

Species interactions

No interactions present.

Comments

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There are several lichen

There are several lichen species in the photo, from the left;
Physcia (probably P. tenella)
Lecanora chlarotera (brown apothecia)
Lecidella elaeochroma (black apothecia)
Xanthoria parietina (yellow foliose)

The Natural History Museum has a useful online identification key here that you could try:
http://www.nhm.ac.uk/jdsml/nature-online/lichen-id-guide/help.dsml