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0 1 Shield lichen

Shield lichen

by caldasrafaTui, Galicia, Spain

1 0 Shield lichen

Shield lichen

by caldasrafaTui, Galicia, Spain

2 0 Net-marked Parmelia

Net-marked Parmelia

by MachiKodiak, Alaska, USA

Or possibly Parmelia omphalodes

1 1 Net-marked Lichen

Net-marked Lichen

by CodyRyanHoughPortage, Michigan, USA

1 0 Shield Lichen

Shield Lichen

by 20jengMaryland, USA

3 0 Shield Lichen

Shield Lichen

by MachiKodiak, Alaska, USA

More deeply lobed than Parmelia hygrophila.

1 0 Net-marked parmelia

Net-marked parmelia

by Brian38Federal Way, Washington, USA

A light green to grey (leafy-looking) folios lichen.

3 0 Net-marked Parmelia

Net-marked Parmelia

by MachiKodiak, Alaska, USA

Black rhizines and a gray, isidiate thallus

1 0 Net-marked Parmelia

Net-marked Parmelia

by MachiKodiak, Alaska, USA

Gray-green, wrinkled thallus with a brown underside

0 0 Shield lichen

Shield lichen

by Ryan.ChampinySalem, New Hampshire, USA

lichens are a combination of a fungus and a photobiont that exist in a ...

0 0 Shield Lichen

Shield Lichen

by KimLommanMirrormont, Washington, USA

Found on a dead branch covered in moss near a dirt road in a heavily wooded ...

1 2 Lichen

Lichen

by JimJohnson2Pennsylvania, USA

I'm terrible at lichens, but this looks like the closest match I could find.

0 0 Shield Lichen

Shield Lichen

by MachiMaine, USA

Growing among Physcia aipolia

0 0 Waxpaper lichen

Waxpaper lichen

by Brian38Tukwila, Washington, USA

Parmelia

1 0 Net-marked parmelia

Net-marked parmelia

by Brian38Washington, USA

Net-marked parmelia (

2 2 Net-marked lichen

Net-marked lichen

by misako.hillRichmond, California, USA

This is the first lichen I have spotted and and not certain of the species. ...

1 0 Shield lichen

Shield lichen

by Brian38Washington, USA

Net-marked parmelia (

0 0 Net-marked Parmelia

Net-marked Parmelia

by MachiMaine, USA

Lichen radiating in a nice round clump

0 0 wax paper lichen

wax paper lichen

by james.branson.206Burien, Washington, USA

Douglas-fir branch in Eagle Landing Park.

0 0 Hammered Shield Lichen

Hammered Shield Lichen

by KatherineDGuelph, Ontario, Canada

Found in the Guelph Arboretum on a tulip tree.

2 5 Shield Lichen

Shield Lichen

by Malcolm Wilton-JonesEngland, United Kingdom

Bars of an old wooden bridge in park on flood plain.

0 0 Cracked-shield lichen

Cracked-shield lichen

by arne.royslandOslo, Norway

A foliose lichen with rosette form.

0 0 Net-marked parmelia

Net-marked parmelia

by arlandaMadrid, Madrid, Spain

Thallus foliose, blue-grey (becoming bronze when old and semi-moribund), with ...

0 2 "Shield Lichen"

"Shield Lichen"

by mmsbiodiversity101Maine, USA

I found this lichen, that I believe is

1 0 Hammered Shield Lichen

Hammered Shield Lichen

by Brian38Washington, USA

A light green to grey lichen that is flat and lobed. Generally fans out from ...

1 0 Shield lichen

Shield lichen

by Brian38Federal Way, Washington, USA

Net-marked parmelia (

0 0 Net-marked parmelia, lichen

Net-marked parmelia, lichen

by arlandaMadrid, Madrid, Spain

Thallus foliose, blue-grey (becoming bronze when old and semi-moribund), with ...

0 1 Shield Lichen

Shield Lichen

by HansNewBurgenland, Austria

This blue lichen grows on a cherry tree. It shares the habitat with some yellow ...

0 0 Rosette Lichen

Rosette Lichen

by MachiMaine, USA

The more gray one is Parmelia

0 0 Shield Lichen

Shield Lichen

by mmsbiodiversity28Maine, USA

spreading on the tree. It was part way up the tree trunk. I believe the lichen ...

4 2 Hammered Shield Lichen

Hammered Shield Lichen

by doreen.chambers.14Vermont, USA

Hammered Shield Lichen with ice crystals formed from the moisture.. Lichen has ...

1 2 Parmelia sulcata?

Parmelia sulcata?

by KathleenMcEachern

tubular lichen loosely growing on a dead branch lying in the leafy forest duff.

0 1 No common name

No common name

by mmsbiodiversity16Maine, USA

My lichen is not very big and it looks kind of crusty it is light green with ...

0 0 Waxpaper lichen

Waxpaper lichen

by tonya.l.roseKingston, Ontario, Canada

Whitish lichen growing on a rock on a shoreline in southern Ontario. Lies flat ...

0 0 Shield lichen

Shield lichen

by souperhayleySouth Carolina, USA

Light green/grey pieces growing on an branch that had fallen from a tree ...

1 0 Hammered Shield Lichen

Hammered Shield Lichen

by Brian38Federal Way, Washington, USA

This is a silvery grey-green lichen with dish like lobes. The lobes have a ...

5 0 Net-marked parmelia

Net-marked parmelia

by arlandaCastilla y León, Spain

Foliose lichen of grey-green color. Easy to identify due to the net-shaped ...

3 0 Lichens

Lichens

by ArgybeeVictoria, Australia

A combination of golden cup and foliose grey-green lichens on pine branch over ...

1 8 Punctelia Fungi

Punctelia Fungi

by CarolSnowMilnePennsylvania, USA

, rudecta, caseans, and graminicola. It even looks similar to Net-marked lichen ...

2 0 Shield Lichen

Shield Lichen

by KalenPleasant Hill, Oregon, United States

Greenish blueish, crusty, flat lichen, with a black underside

0 2 Parmelina tiliacea parasitized by Marchandiomyces corallinus

Parmelina tiliacea parasitized by Marchandiomyces corallinus

by arlandaAlcobendas, Madrid, Spain

Parmelia and Physcia species, frequently ...

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