
A leafy (foliose) lichen that is pollution tolerant and found throughout much of the world.
Parmelia sulcata

The yellow coating on the bark is not a lichen, but an algae.
Trentepohlia sp.

Parmotrema perlatum

Punctelia subrudecta s. str.

The yellow lichen in this photo is Xanthoria parietina

Ramalina fastigiata

Ramalina fastigiata

Melanohalea exasperata

Lecanora chlarotera

Hypogymnia tubulosa

Punctelia jeckeri

Punctelia jeckeri (detail)

Hypogymnia tubulosa

Baeomyces rufus, the brown beret lichen

Baeomyces rufus detail showing "brown berets" or apothecia (bowl-shaped fruiting bodies)

Parmelia saxatilis, also known as the salted shield lichen or crottle

Ramalina fraxinea, the cartilage lichen

Acarospora fuscata

The centre lichen is unidentified
The lichen at bottom centre of the photo is Rhizocarpon reductum

Rhizocarpon reductum


Lecanora muralis sometimes known as the chewing gum lichen

Lecanora muralis (detail)

Psilolechia lucida

Psilolechia lucida (detail)

The yellow lichen in this photo is Xanthoria parietina. The grey lichen is Physcia tenella.

Xanthoria parietina (detail)