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A lichen - Stereocaulon vesuvianum
by Lairich Rig
for square NS3778
Category: Lichens and mosses
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A lichen - Ochrolechia tartarea
by Lairich Rig
for square NS2984
Category: Lichens and mosses
The photo shows the northern side of the trunk of a large tree. It was mostly... (more)
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A lichen - Parmelia saxatilis
by Lairich Rig
for square NS3678
Category: Lichens and mosses
This is an extremely common lichen in Britain. It can be found on moderately... (more)
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Lichens on a boulder in a disused quarry
by Lairich Rig
for square NS3678
Category: Lichens and mosses
Several species of lichen can be seen here growing upon the top of a large... (more)
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A lichen - Xanthoparmelia conspersa
by Lairich Rig
for square NS3779
Category: Lichens and mosses
(Synonym: Parmelia conspersa)
This lichen was growing on boulders that are... (more)
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A lichen - Ramalina calicaris
by Lairich Rig
for square NS3383
Category: Lichens and mosses
Not all lichens are indicators of good air quality (for example, the species... (more)
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A lichen - Physcia caesia
by Lairich Rig
for square NS3676
Category: Lichens and mosses
"It is common on nutrient-enriched, well-lit calcareous materials, but may... (more)
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A lichen - Tephromela atra ("Black Shields")
by Lairich Rig
for square NS3675
Category: Lichens and mosses
(Older synonym: Lecanora atra)
This lichen is "common on siliceous rocks... (more)
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A lichen - Trapeliopsis pseudogranulosa
by Lairich Rig
for square NS3984
Category: Lichens and mosses
This specimen was found growing on a mossy rock in a dry-stone wall; the wall... (more)
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A lichen - Peltigera membranacea
by Lairich Rig
for square NS3681
Category: Lichens and mosses
The orange-brown discs are the spore-producing structures (apothecia). The pale... (more)
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The "Map Lichen" - Rhizocarpon geographicum
by Lairich Rig
for square NS3779
Category: Lichens and mosses
This lichen, a few centimetres across, was growing on the boulders of an ancient... (more)
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Carpet of Lichen, Culbin
by Mick Garratt
geograph for square NH9963
Culbin is a man made forest, of Scots and Corsican pines, planted in the 1930s... (more)
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A lichen - Placynthium nigrum
by Lairich Rig
for square NS4377
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A lichen - Peltigera membranacea
by Lairich Rig
for square NS3778
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A lichen - Mycoblastus sanguinarius
by Lairich Rig
for square NS3778
The lichen was on a dry-stone wall, just a few metres to the right (north-east)... (more)
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A lichen - Parmelia saxatilis
by Lairich Rig
for square NS4280
Apart from moss, most of the image is taken up by the lichen referred to in the... (more)
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A lichen - Bryoria fuscescens
by Lairich Rig
for square NS3680
Category: Lichens and mosses
There are several lichens visible in this image, but the one being highlighted... (more)
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A lichen - Graphis scripta
by Lairich Rig
for square NS3680
Category: Lichens and mosses
This is one of the lirellate lichens, so called because the fruiting bodies,... (more)
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A lichen - Cladonia portentosa
by Lairich Rig
for square NS3778
Category: Lichens and mosses
In a quick examination (undertaken out of curiosity) of a few square metres of... (more)
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A lichen - Pertusaria corallina
by Lairich Rig
for square NS3778
Category: Lichens and mosses
This lichen is "very common on exposed siliceous rocks in upland and... (more)
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A lichen - Usnea species
by Lairich Rig
for square NS3581
Category: Lichens and mosses
This photograph was taken from the side of a footpath through the coniferous... (more)
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A lichen - Ramalina fraxinea
by Lairich Rig
for square NS4179
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Carpet of Lichen, Culbin
by Mick Garratt
geograph for square NJ0264
Culbin is a man made forest, of Scots and Corsican pines, planted in the 1930s... (more)
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A lichen - Lasallia pustulata
by Lairich Rig
for square NS3974
The picture is a close-up of a steep rock face, part of which is shown in... (more)
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A lichen - Rimularia furvella
by Lairich Rig
for square NS3178
Category: Lichens and mosses
This lichen was growing on a schist boulder beside a footpath above the shore... (more)
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A lichen - Parmelia ernstiae
by Lairich Rig
for square NS4276
Category: Lichens and mosses
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A lichen - Buellia aethalea
by Lairich Rig
for square NS3675
Category: Lichens and mosses
This lichen species was growing on a boulder on the beach; it occurred in small... (more)
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A lichen - Collema furfuraceum
by Lairich Rig
for square NS3675
Category: Lichens and mosses
Within their outer fungal layer, most lichens contain algae. Those in the genus... (more)
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A lichen - Pertusaria amara
by Lairich Rig
for square NS3882
Category: Lichens and mosses
The title refers to the white lichen in the upper half of the image (the green... (more)
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Ramalina fastigiata lichen
by Phil Brandon Hunter
for square TQ8224
The lichen Ramalina fastigiata (dotted-ribbon lichen) on the bark of Salix... (more)
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Ramalina fastigiata lichen
by Phil Brandon Hunter
for square TQ8224
The lichen Ramalina fastigiata (dotted-ribbon lichen) on the bark of Salix... (more)
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A lichen - Ochrolechia parella
by Lairich Rig
for square NS3380
Category: Lichens and mosses
Although I submitted another photo of this species, the present image is of a... (more)
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A lichen - Evernia prunastri
by Lairich Rig
for square NS4276
Category: Lichens and mosses
A common name for this species is "Oak Moss", although it is not a... (more)
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A lichen - Hypogymnia physodes
by Lairich Rig
for square NS3976
Category: Lichens and mosses
This is a very common species, found on trees and rocks; its lobes have a... (more)
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Xanthoria parietina Lichen
by Phil Brandon Hunter
for square TQ8933
The lichen 'Xanthoria parietina' seen on the bark of a field maple on... (more)
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Ramalina fastigiata Lichen
by Phil Brandon Hunter
for square TQ8224
The lichen Ramalina fastigiata (Dotted Ribbon Ramalina), on a willow tree in... (more)
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Ramalina fastigiata Lichen
by Phil Brandon Hunter
for square TQ8224
The lichen Ramalina fastigiata (Dotted Ribbon Ramalina), on a willow tree in... (more)
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Evernia prunastri (Oak Moss)
by Phil Brandon Hunter
for square TQ8224
The lichen Evernia prunastri (also known as Oak Moss, though a lichen not a... (more)
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Hammered Shield Lichen
by Phil Brandon Hunter
for square SH7043
The Hammered Shield Lichen (Parmelia sulcata), photographed on a wall in the... (more)
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Lichen (Pertusaria pertusa) with fungal parasite
by Lairich Rig
for square NS3779
Category: Lichens and mosses
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A lichen - Parmelia sulcata
by Lairich Rig
for square NS3678
Category: Lichens and mosses
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A lichen - Cladonia macilenta
by Lairich Rig
for square NS3778
Category: Lichens and mosses
This lichen is growing at the base of a tree, which is a very typical habitat... (more)
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A lichen - Baeomyces rufus
by Lairich Rig
for square NS4179
Category: Lichens and mosses
The lichen is shown here growing on a boulder of (locally abundant) red... (more)
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A lichen - Baeomyces rufus
by Lairich Rig
for square NS3778
Category: Lichens and mosses
Several patches of this lichen were growing on peaty soil at the side of a... (more)
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A lichen - Arctoparmelia incurva
by Lairich Rig
for square NS3778
Category: Lichens and mosses
(Older synonym: Parmelia incurva)
The lobes of the lichen are quite long and... (more)
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A lichen: Rhizocarpon oederi
by Lairich Rig
for square NS3778
Category: Lichens and mosses
Several patches of this lichen were growing on a rock in a dry-stone wall. The... (more)
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Fungal parasite on lichen
by Lairich Rig
for square NS4079
Category: Fungi
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A lichen - Platismatia glauca
by Lairich Rig
for square NS4276
Category: Lichens and mosses
This foliose (leafy) lichen is "very common, especially in upland areas, on... (more)
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A lichen - Diploschistes scruposus
by Lairich Rig
for square NS4375
Category: Lichens and mosses
This lichen species is often grey in colour, occasionally with a yellow tinge;... (more)
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A lichen - Ochrolechia androgyna
by Lairich Rig
for square NS4277
Category: Lichens and mosses
This lichen was growing on one of a number of rocks that were heaped up in a... (more)
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