Usnea Lichen

Usnea sp.
Scale 5 Diat: carbon-macromolecules , Hierachy 2
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FACT: This lichen called old man’s beard must be played next to a tree.

cold, cool, warm
Graphic by Nandita
Usnea is a genus of mostly pale grayish-green fruticose lichens that grow like leafless mini-shrubs or tassels anchored on bark or twigs.[1]:203 The genus is in the family Parmeliaceae. It grows all over the world. Members of the genus are commonly called old man’s beard, or beard lichen.[1]:203 Like other lichens it is a symbiosis of two or three fungi and an alga.[2] In Usnea, the fungus belongs to the division Ascomycota, while the alga is a member […] read more

Reindeer Lichen

Cladina stellaris
Scale 7 Diat: photosynthetic , Hierachy 1
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Play: Only on jack pine, black spruce, or sphagnum moss.

Fact: Reindeer lichen grows only 3-5 mm per year and can take decades to grow back after disturbance.

cold, cool
Graphic by Elly
Cladonia stellaris is an ecologically important species of lichen that forms continuous mats over large areas of the ground in boreal and arctic regions around the circumpolar north. The species is a preferred food source of reindeer and caribou during the winter months,[1][2][3] and it has an important role in regulating nutrient cycling and soil […] read more