Mycoblastus is a genus of crustose lichens in the family Tephromelataceae. Members of the genus are commonly called blood lichens.
Parmelia saxatilis, commonly known as the salted shield lichen or crottle, is a species of foliose lichen in the family Parmeliaceae. Several morphologically similar species, formerly lumped together, are now distinguished by their DNA.
Dibaeis baeomyces, commonly known as pink earth lichen, is a fruticose lichen belonging to the family Icmadophilaceae.
Peltigera canina, commonly known as the dog lichen, is a widely distributed species of foliose lichen in the family Peltigeraceae. It was originally described by Carl Linnaeus in his 1753 work Species Plantarum. German botanist Carl Ludwig Willdenow transferred it to the genus Peltigera in 1787. This species is currently undergoing research as it is likely multiple species under one united name.
Nephroma resupinatum, commonly known as the pimpled kidney lichen, is a species of foliose lichen in the family Peltigeraceae. It was first described by Carl Linnaeus in his 1753 work Species Plantarum as Lichen resupinatus. Erik Acharius transferred it to the genus Nephroma in 1810.
Peltigera lepidophora, commonly known as the fan lichen, is a species of foliose lichen in the family Peltigeraceae. It was first described by Carl Linnaeus in his 1753 work Species Plantarum as Lichen venosus. German botanist Georg Franz Hoffmann transferred it to the genus Peltigera in 1789. P. venosa can be found in temperate and boreal regions of North America, Europe, and Asia, while occasionally being found in drier climates such as mountainous Arizona.
Umbilicaria polyphylla, commonly known as petaled rock tripe, is a widely distributed species of saxicolous lichen in the family Umbilicariaceae. It was first described by Carl Linnaeus in his 1753 work Species Plantarum as Lichen polyphyllus. German botanist Johann Christian Gottlob Baumgarten transferred it to the genus Umbilicaria in 1790. The lichen has a dark brown to black thallus that measures 2–6 cm (0.8–2.4 in) in diameter. The upper surface is smooth, while the lower surface is sooty black. It grows on exposed rocks, typically in arctic-alpine habitats.
Umbilicaria deusta, commonly known as peppered rock tripe, is a widely distributed species of saxicolous lichen in the family Umbilicariaceae. It was first described by Carl Linnaeus in his 1753 work Species Plantarum as Lichen polyphyllus. German botanist Johann Christian Gottlob Baumgarten transferred it to the genus Umbilicaria in 1790. The lichen has a dark brown to nearly black thallus that typically measures 1–5 cm (0.4–2.0 in) in diameter. The upper surface is covered with tiny black dots that are granular isidia; the lower surface is the same colour as the upper surface, and is either smooth or covereds with dimples. It grows on exposed boulders and rocky outcrops.
Pyxine cocoes, commonly known as the buttoned rosette lichen, is a widely distributed species of foliose lichen in the family Caliciaceae.
Cladonia coccifera or madame's cup lichen is a species of fruticose, cup lichen in the family Cladoniaceae. It was first described by Swedish lichenologist Carl Linnaeus in his 1753 work Species Plantarum. German botanist Carl Ludwig Willdenow transferred it to the genus Cladonia in 1787. The lichen has apothecia and bright red pycnidia atop of yellowish to grey-green podetia that are 1–2 cm (0.4–0.8 in) high. The base of the thallus comprises rounded squamules (scales) with a yellow to orange-brown undersurface. It typically occurs on acidic peaty and sandy soils.
Cladonia cornuta or the bighorn cup lichen is a species of fruticose, cup lichen in the family Cladoniaceae. It was first described as a new species by Swedish lichenologist Carl Linnaeus in his seminal 1753 work Species Plantarum. German biologist Georg Franz Hoffmann transferred it to the genus Cladonia in 1791. The lichen has a distribution that is circumpolar, boreal, and arctic. It has also been recorded from the Southern Hemisphere.
Cladonia gracilis or the smooth cup lichen is a species of fruticose, cup lichen in the family Cladoniaceae. It was first described as a new species by Carl Linnaeus in his 1753 work Species Plantarum. German botanist Carl Ludwig Willdenow transferred it to the genus Cladonia in 1787. In North America, it is known colloquially as the "smooth Cladonia".
Ascodichaena rugosa is a species of fungus in the family Ascodichaenaceae. It was first scientifically described as a new species by Carl Linnaeus in 1753 as Lichen rugosum. Heinz Butin transferred it to the newly circumscribed genus Ascodichaena in 1977, in which it is the type species.
Cladonia subulata is a species of fruticose, cup lichen in the family Cladoniaceae. It was first described as a new species by Swedish taxonomist Carl Linnaeus in 1753. It was transferred to the genus Cladonia by Friedrich Heinrich Wiggers in 1780. In North America, the lichen is colloquially known as the antlered powderhorn or antlered cup lichen.
Cladonia uncialis is a species of fruticose, cup lichen in the family Cladoniaceae. It was first described as a new species by Swedish taxonomist Carl Linnaeus in 1753. It was transferred to the genus Cladonia by Friedrich Heinrich Wiggers in 1780. In North America, the lichen is colloquially known as the thorn Cladonia or the thorn cup lichen.
Parmelia omphalodes is a species of foliose lichen in the family Parmeliaceae. It is one of the several dozen lichen species first described in 1753 by Carl Linnaeus. Swedish lichenologist Erik Acharius transferred it to the genus Parmelia in 1803. The lichen is widely distributed, having been recorded in Asia, Africa, Europe, and North and South Americas. Morphologically similar–but genetically distinct–species include Parmelia discordans and P. pinnatifida.
Circinaria calcarea is a species of crustose lichen in the family Megasporaceae. It was first described as a new species by Carl Linnaeus in his 1753 work Species Plantarum. Linnaeus named it Lichen calcareus, as he classified all lichens in the eponymously named genus. The species has had an extensive taxonomic history, resulting in dozens of synonyms. In 2010, it was placed in its current genus, Circinaria, following molecular phylogenetic analysis of the Megasporaceae.
Ochrolechia upsaliensis is a species of crustose lichen in the family Ochrolechiaceae. Found in the Northern Hemisphere, it is commonly known as the tundra saucer lichen.
Solorina crocea, commonly known as the orange chocolate chip lichen, is a species of terricolous (ground-dwelling) and foliose (leafy) lichen in the family Peltigeraceae. The lichen, which was first formally described by Carl Linnaeus in 1753, has an arctic–alpine and circumpolar distribution and occurs in Asia, Europe, North America, and New Zealand. It generally grows on the bare ground in sandy soils, often in moist soil near snow patches or seepage areas. Although several forms and varieties of the lichen have been proposed in its history, these are not considered to have any independent taxonomic significance.
Platismatia glauca is a common and widespread species of corticolous (bark-dwelling), foliose lichen in the family Parmeliaceae.
