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This is a photograph of lichen in Finland. For those of you who don’t know, lichens are composed of two plants, usually a fungus and a plant that can do photosynthesis. From a distance, these little plants look like green fluffy clouds along on the forest floor.

Lichen in Finland. Lichens are composed of two plants, usually a fungus and a plant that can do photosynthesis. From a distance, these little plants look like green fluffy clouds along on the forest floor.

Letharia vulpina ("wolf lichen") on incense cedar bark, western slope of the Sierra Nevada, California. Letharia columbiana, in the previous portrait, is its sister species.  This was the most widely used dye lichen for indigenous peoples in western North America, used from the Rockies to the Pacific coast, from California to Alaska. Some groups also made paint from it.

Letharia vulpina (wolf lichen) California Used as dye - paint - poison arrowheads, weak tea for internal issues by the Okanagan-Colville and Blackfoot

lichen at Point Reyes

various lichen including parmotrema, usnea and hypogymnia. Seen while hiking SKY - BEAR VALLEY LOOP at Point Reyes, CA

Lichen. William Tanneberger

Lichen (unidentified) / July, Richmond County, Georgia, USA / Copyright by William Tanneberger - All Rights Reserved.

Ramalina Elegans Lichen, Bear Canyon Trail, San Mateo Wilderness

Ramalina Elegans Lichen, Bear Canyon Trail, San Mateo Wilderness

Cladonia (cup lichen) is a genus of moss-like lichens in the family Cladoniaceae

Cladonia (cup lichen) is a genus of moss-like lichens in the family Cladoniaceae. They are the primary food source for reindeer and caribou. Foto was taken at the White sea coast near WSBS MSU.

Pseudocyphellaria aurata

Pseudocyphellaria aurata Many species of Pseudocyphellaria are cyanolichens and contain the cyanobacterium Nostoc as a photobiont, which allows nitrogen fixation.

Favolaschia pustulosa

Favolaschia pustulosa

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