Canoparmelia is a genus of lichen-forming fungi in the family Parmeliaceae. The widespread genus contains about 35 species. Canoparmelia, a segregate of the parmelioid lichen genus Pseudoparmelia, was circumscribed by John Elix and Mason Hale in 1986.
Bulbothrix is a genus of lichen-forming fungi in the family Parmeliaceae. This genus is synonymous with Bulbothricella V.Marcano, S.Mohali & A.Morales. Bulbothrix was circumscribed by lichenologist Mason E. Hale in 1974 with Bulbothrix semilunata as the type species.
Parmelinella is a genus of lichen belonging to the family Parmeliaceae. The genus was circumscribed in 1987 by John Elix and Mason Hale as a segregate of Parmelina, from which it differs in having larger ascospores and containing salazinic acid. Although the genus had been assumed to be well-defined morphologically, a 2021 molecular phylogenetic study suggests that the generic delimitations need to be revised.
Parmotrema is a genus of lichen belonging to the family Parmeliaceae. It is a large genus, containing an estimated 300 species, with a centre of diversity in subtropical regions of South America and the Pacific Islands.
Punctelia is a genus of foliose lichens belonging to the large family Parmeliaceae. The genus, which contains about 50 species, was segregated from genus Parmelia in 1982. Characteristics that define Punctelia include the presence of hook-like to thread-like conidia, simple rhizines, and point-like pseudocyphellae. It is this last feature that is alluded to in the vernacular names speckled shield lichens or speckleback lichens.
Leptogium is a genus of lichen-forming fungi in the family Collemataceae. It has about 110 species.
Architrypethelium is a genus of lichen-forming fungi in the family Trypetheliaceae. The genus was circumscribed in 1991 by Dutch lichenologist André Aptroot, with A. seminudum assigned as the type species. It is a segregate of genus Trypethelium.
Bulbothrix cinerea is a species of lichenized fungi within the family Parmeliaceae. Among other Bulbothrix species, only B. isidiza has isidia combined with an underside that is light coloured. B. isidiza's laciniae are wider, while its thallus is pale, and contains salazinic acid. In turn, B. ventricosa is larger and a black underside and rhizinae. The African species B. decurtata is an obligately saxicolous lichen, and while similar, it has a dark underside and produces salazinic acid in its medulla. The species' name thus refers to its uncommon dark gray colouration of its thallus.
Parmotrema asperum is a species of saxicolous lichen in the family Parmeliaceae. Found in Brazil, it was described as new to science in 2008. The milky-grey thallus of the lichen is up to 11 centimetres (4.3 in) in diameter, consisting of irregularly branched lobes measuring 2.0–6.5 mm wide. The lichen is named for the coarse appearance of the thallus.
Parmotrema aurantiacoparvum is a species of corticolous lichen in the family Parmeliaceae. Found in South America, it was described as new to science in 1992 by lichenologist Harrie Sipman. Its thallus is pale grey or slightly brownish in colour, measuring 2–4 cm (0.8–1.6 in) wide. The lichen has been collected in Colombia, Guyana, French Guiana, Venezuela, and Brazil. It grows on canopy branches and on small trees in well-lit areas of forests or clearings.
Parmotrema anchietanum is a species of saxicolous lichen in the family Parmeliaceae. Found in South America, it was described as new to science in 2008. The holotype was collected on the rocky shore of Anchieta Island in São Paulo; the lichen is named after the type locality. Its leathery, pale grey thallus measures up to 16 cm (6.3 in) in diameter, composed of irregularly branched lobes that are typically 1–3 mm wide. Secondary compounds present in the lichen include atranorin and chloratranorin in the cortex, and salazinic acid and consalazinic acid in the medulla.
Crespoa is a genus of five species of lichen in the family Parmeliaceae. Species in this genus are characterized by having an upper thallus surface that is wrinkled and reticulately ridged to coarsely foveolate.
Parmotrema zicoi is a species of saxicolous lichen in the family Parmeliaceae. Found in Brazil, it was introduced as new to science in 2002.
Bulbothrix meizospora is a species of foliose lichen in the family Parmeliaceae. It is found in Africa, Asia, and South America, where it grows on tree bark.
Thomas Hawkes Nash III is an American lichenologist. His research is about the biology and ecology of lichens, and the effects of air pollution on plants and lichens. He is known as an authority on the family Parmeliaceae. During his long career at the Arizona State University, he helped develop the lichen herbarium into a world-class collection with over 100,000 specimens representing more than 5000 species. In 2010, the year of his retirement, he was awarded the Acharius Medal for lifetime achievements in lichenology, and the following year had a Festschrift published in his honor.
Punctelia nashii is a species of foliose lichen in the family Parmeliaceae. It is known only from California.
Punctelia osorioi is a species of foliose lichen in the family Parmeliaceae. It is found in Brazil.
Punctelia riograndensis is a species of foliose lichen in the family Parmeliaceae. Found in Africa and South America, it was formally described as a new species by Norwegian lichenologist Bernt Lynge in 1914, as Parmelia riograndensis. The type specimen was collected in 1892 from Porto Alegre Municipality in Rio Grande do Sul State (Brazil) by Swedish lichenologist Gustav Malme. In 1982, Hildur Krog circumscribed the genus Punctelia to contain Parmelia species with rounded pseudocyphellae, and P. riograndensis was one of the 22 species that she transferred to the new genus.
Leptogium kalbii is a species of lichen in the family Collemataceae. It is found in Brazil, both in São Paulo State and in some Islands of Brazil.
