Xanthoparmelia is a genus of foliose lichens in the family Parmeliaceae. This genus of lichen is commonly found in the United States, South America, southern Africa, Europe, Australia, and New Zealand.
Psiloparmelia is a genus of lichen belonging to the family Parmeliaceae. It contains 13 Southern Hemisphere species, most of which are found growing on rocks at high elevations in South America. There are several characteristic features of the genus that are used to distinguish it from the morphologically similar genera, such as Arctoparmelia, Flavoparmelia, and Xanthoparmelia. These include a dark, velvety lower thallus surface that usually lacks rhizines, a negative test for lichenan, and a high concentration of usnic acid and atranorin in the cortex.
Xanthoparmelia conspersa, commonly known as the peppered rock-shield, is a foliose lichen and the type species of genus Xanthoparmelia. It is widely distributed in temperate zones, and has been recorded from Japan, Europe, Africa, North America, and South America.
Xanthoparmelia mexicana, commonly known as the salted rock-shield, is a foliose lichen in the family Parmeliaceae. It grows in 4–10 cm diameter rosettes of gray-green to yellow-green lobes in arid climates all over the world.
Xanthoparmelia lineola, commonly known as the tight rock-shield, is a foliose lichen species in the genus Xanthoparmelia. It is a common species with a temperate distribution. Found in North America and South Africa, it grows on rocks.
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.
Punctelia transtasmanica is a species of foliose lichen in the family Parmeliaceae. It is found in Australasia.
Punctelia nebulata is a species of foliose lichen in the family Parmeliaceae. Found in Australia, it was formally described as a new species in 1988 by lichenologists John A. Elix and Jen Johnston. The type was collected in New South Wales, on a roadside north of Gilgandra. The lichen grows on Callitris trees in semi-arid, inland regions of southern Australia.
Xanthoparmelia perezdepazii is a species of saxicolous (rock-dwelling), foliose lichen in the family Parmeliaceae. It is found in the Canary Islands.
Canoparmelia rarotongensis is a species of foliose lichen in the family Parmeliaceae. Found in Rarotonga, it was formally described as a new species in 2000 by Simone Louwhoff and John Elix. The type specimen was collected by the second author from the Muri Lagoon, where it was found growing on hibiscus along the foreshore. It is named for its type locality. The main physical characteristic that distinguishes it from others in its genus is its conspicuous isidia, which are consistently inflated and branched.
Xanthoparmelia nomosa is a species of saxicolous (rock-dwelling), foliose lichen in the family Parmeliaceae. It is found in Tasmania, Australia.
Xanthoparmelia somervilleae is a species of saxicolous (rock-dwelling), foliose lichen in the family Parmeliaceae. It is found in Tasmania, Australia.
Xanthoparmelia alligatensis is a species of saxicolous (rock-dwelling), foliose lichen in the family Parmeliaceae, described by John Elix in 2006. The species is native to South Australia, specifically found in the Mount Remarkable National Park.
Xanthoparmelia cranfieldii is a species of foliose lichen in the family Parmeliaceae, first described by John Elix in 2003. It is known only from its type locality in Western Australia.
Xanthoparmelia elevata is a species of foliose lichen in the family Parmeliaceae, described by John Alan Elix in 2003. It is found exclusively in Western Australia, growing on granite outcrops in the region's southwest.
Xanthoparmelia kimberleyensis is a species of foliose lichen in the family Parmeliaceae, described by John Alan Elix in 2003. It is endemic to the Kimberley region of Western Australia.
Xanthoparmelia monadnockensis is a species of foliose lichen in the family Parmeliaceae, described by John Elix in 2003. It is native to Western Australia, particularly found in the Monadnocks Nature Reserve near Jarrahdale.
Xanthoparmelia nanoides is a species of saxicolous (rock-dwelling), foliose lichen in the family Parmeliaceae, described by John Elix in 2003. This species is endemic to Western Australia and known only from its type locality near Albany.
Xanthoparmelia toolbrunupensis is a species of foliose lichen in the family Parmeliaceae, first described scientifically by the lichenologist John Elix in 2003. This species is endemic to Western Australia, with a distribution limited to the Stirling Range.
Xanthoparmelia nortegeta is a species of saxicolous (rock-dwelling), foliose lichen in the family Parmeliaceae, described by John Elix in 2003. This lichen is endemic to Western Australia, particularly the Boyagin Nature Reserve.
