Xanthoparmelia sp. on rocks.
From Shenandoah National Park, Virginia.
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Lichens in boreal forest with Spruce trees 1
From the Grandes Jardins, Laurentides, Quebec.
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Lichens in boreal forest with Spruce trees 2
From the Grandes Jardins, Laurentides, Quebec.
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Lichens in boreal forest with Spruce trees 3
From the Grandes Jardins, Laurentides, Quebec.
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Cliff in Lake Superior.
From the North Shore of Lake Superior, Ontario. |
Rhizocarpon geographicum group on rocks, with grasses.
From Acadia National Park, Maine. |
Umbilicaria mammulata on large boulder.
From Roan Mountain, Tennessee. |
Usnea spp. on large conifer 1
From the North Shore of Lake Superior, Ontario. |
Usnea spp. on large conifer 2
From the North Shore of Lake Superior, Ontario. |
Boreal forest Cladonia spp. and Stereocaulon spp. 1
From the North Shore of Lake Superior, Ontario.
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Boreal forest Cladonia spp. and Stereocaulon spp. 1
From the North Shore of Lake Superior, Ontario. |
Lichens on granite 1
From Enchanted Rock State Natural Area, central Texas. |
Lichens on granite 2
From Enchanted Rock State Natural Area, central Texas. |
Arctoparmelia centrifuga and Stereocaulon sp. on boulderfield, Image 1
From the Laurentides, Quebec. |
Arctoparmelia centrifuga and Stereocaulon sp. on boulderfield, Image 2
From the Laurentides, Quebec. |
Lichen covered rocks.
From Spar Canyon, southwestern Idaho. |
Lichens on granite 3
From Enchanted Rock State Natural Area, central Texas. |
Rock climber and lichens.
From Enchanted Rock State Natural Area, central Texas. |
Lichens on granite 4
(the pink is bare rock; green and black are lichen-covered areas)
From Enchanted Rock State Natural Area, central Texas. |
Lichens on granite 5
From Enchanted Rock State Natural Area, central Texas. |
Usnea-covered tree in winter.
From Great Smoky Mountains National Park, Tennessee.
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Lichens on streamside rocks.
From Idaho. |
Forest glade 1
From Ozark National Forest, Arkansas. |
Forest glade 2
From Ozark National Forest, Arkansas. |
Lichen-covered rock along the North Shore of Lake Superior, Ontario. |
Maple tree with lichens.
From near St. John, New Brunswick. |
Lichen-covered rocks on Mt. Washington, New Hampshire.
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Lichens on an old well and stone wall, Martha's Vineyard, Massachusetts. |
Shoreline zonation.
From Maine. |
Shoreline zonation.
From St. Malo, Brittany Coast, France. |