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Spot tests on the foliose lichen Punctelia borreri showing thallus (top) and medulla (bottom). The pinkish-red colour change of the medulla in the C and KC tests indicate the presence of gyrophoric acid, a chemical feature that helps to distinguish it from similar species in the same genus.
Edible lichens are lichens that have a cultural history of use as a food. Although almost all lichen are edible (with some notable poisonous exceptions like the wolf lichen , powdered sunshine lichen , and the ground lichen [ 1 ] ), not all have a cultural history of usage as an edible lichen.
Rhizocarpon macrosporum (lemon map lichen) is a smooth, bright yellow crustose aereolate lichen found in the Sonoran Desert of California and Arizona, and in Africa and Asia. [1] It grows on non- calciferous rock in clearings in coniferous forests, from 1,475 to 3,030 metres (4,839 to 9,941 ft).
Arthonia radiata is a crustose lichen with an immersed thallus, often separated from its surroundings by a thin brown line.The thallus is typically pale, ranging from white to pale grey, sometimes with a brown or olive tinge, and often forms a mosaic-like pattern on its substrate.
Brodoa oroarctica, commonly known as the Arctic sausage lichen, mountain sausage lichen, or rockgrub, is a species of rock-dwelling, foliose lichen in the family Parmeliaceae. [2] First described in 1974 by the Norwegian botanist Hildur Krog , it is characterised by its dark grey, irregularly spreading thallus with narrow cylindrical lobes that ...
Montanelia panniformis, commonly known as the shingle camouflage lichen, [2] is a species of saxicolous (rock-dwelling) foliose lichen in the family Parmeliaceae. [3] It has a mostly circumboreal distribution in Asia, Europe, and North America.
Basidiolichen mycobionts consist of 172 known species (0.9% of the total number of accepted lichen species) across 15 genera, 5 families, and 5 orders within the class Agaricomycetes in the fungal division Basidiomycota. [1] The majority of described basidiolichen mycobionts belong to the genus Cora, followed by the genera Dictyonema and ...
The lichen's reproductive structures, or ascomata, are usually brightly coloured, and typically in the form of an apothecium – a wide, open, saucer-shaped or cup-shaped fruit body. In most species, these apotheciate ascomata have a lecanorine form, in which the apothecial disc is surrounded by a pale rim of tissue known as a thalline margin.