| Psiloparmelia salazinica | |
|---|---|
Scientific classification  | |
| Kingdom: | Fungi |
| Division: | Ascomycota |
| Class: | Lecanoromycetes |
| Order: | Lecanorales |
| Family: | Parmeliaceae |
| Genus: | Psiloparmelia |
| Species: | P. salazinica |
| Binomial name | |
| Psiloparmelia salazinica | |
Psiloparmelia salazinica is a species of foliose lichen in the family Parmeliaceae. It is found in South America.
The lichen was described as a new species in 1992 by lichenologists John Elix and Tom Nash. The type specimen was collected by Nash from the east slope of the Sierra de Santa Victoria (Jujuy Province, Argentina) at an elevation of 4,400 m (14,400 ft). The species has also been recorded from Chile. The specific epithet refers to the presence of salazinic acid, a secondary compound that helps to distinguish it from a similar species, Psiloparmelia distincta . [1]
The yellowish-green thallus of Psiloparmelia salazinica reaches diameters of 4–5 cm (1.6–2.0 in), comprising somewhat linear, irregularly branched, contiguously placed lobes measuring 0.8–2.0 mm wide. The lobes are dull, becoming pruinose near the tips. The apothecia measure 2–5 mm (0.08–0.2 in) in diameter; the ascospores are roughly spherical to elliptical in shape, measuring 4.5–5.5 by 7–9 μm. Pycnidia are common in this lichen; they are immersed in the surface of the thallus, and produce bifusiform conidia (i.e., rod-shaped with minute swellings at each end) measuring 0.5 by 5–6 μm. [1]
Secondary chemicals that occur in this species are usnic acid (major), minor amounts of atranorin and salazinic acid, and minor to trace amounts of consalazinic acid, norstictic acid, and protocetraric acid. The expected results of standard chemical spot tests are: cortex K+ (yellow-pale red), C−, PD+ (yellow-orange), while in the medulla they are K−, C−, KC−, and PD−. [1]
Myelochroa is a genus of foliose lichens in the family Parmeliaceae. They are commonly known as axil-bristle lichens. It was created in 1987 to contain species formerly placed in genus Parmelina that had a yellow-orange medulla due to the presence of secalonic acids. Characteristics of the genus include tightly attached thalli with narrow lobes, cilia on the axils, and a rhizinate black lower surface. Chemical characteristics are the production of zeorin and related triterpenoids in the medulla. Myelochroa contains about 30 species, most of which grow on bark. The genus has centres of distribution in Asia and North America.
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.
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.
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 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.
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.
Hypotrachyna vainioi is a species of foliose lichen in the family Parmeliaceae. It is found in Brazil.
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 subalbicans is a species of foliose lichen in the family Parmeliaceae. It is found in Australia and New Zealand, where it grows on the bark of various tree species.
Punctelia bolliana, the eastern speckled shield lichen, is a species of foliose lichen in the family Parmeliaceae. It is found in North America, with a distribution extending from the Canadian province of Ontario south to the central and northeastern United States and Mexico. It grows on the bark of both deciduous trees and coniferous trees. The combination of characteristics that distinguishes this species from others in genus Punctelia are the absence of the vegetative propagules isidia and soralia, a pale brown lower thallus surface, and the presence of the secondary chemical protolichesterinic acid in the medulla.
Parmelia ernstiae is a species of foliose lichen in the family Parmeliaceae. It occurs in Europe.
Pseudoparmelia kalbiana is a species of foliose lichen in the family Parmeliaceae. It is found in South America.
Parmelinella schimperiana is a species of foliose lichen in the family Parmeliaceae. It is found in Kenya, Cameroon, and South India, where it typically grows on bark, but less frequently on rock.
Parmelia protosignifera is a species of foliose lichen in the large family Parmeliaceae. Found in Australasia, it was described as a new species in 1988 by lichenologists John Elix and Jen Johnston. The type specimen was collected on sheltered granite ledges in Eucalyptus woodland on the eastern slopes on Tinderry Peak in New South Wales. It has also been collected in Victoria, as well as South Island and Stewart Island of New Zealand.
Hypogymnia krogiae, commonly known as the freckled tube lichen, is a species of foliose lichen in the family Parmeliaceae. Found in North America, it was described as a new species in 1973 by Karl Ohlsson. The type specimen was collected near Cheat Bridge, West Virginia by Mason Hale in 1956.
Salazinic acid is a depsidone with a lactone ring. It is found in some lichens, and is especially prevalent in Parmotrema and Bulbothrix, where its presence or absence is often used to help classify species in those genera.
Parmelia fraudans is a species of foliose lichen in the family Parmeliaceae. It is found in Europe and North America, where it grows on rocks.
Myelochroa salazinica is a species of foliose lichen in the family Parmeliaceae. Found in China, it was described as a new species in 2001 by Sheng-Lan Wang, Jian-Bin Chen, and John Alan Elix.
Xanthoparmelia isidiovagans is a species of foliose lichen in the family Parmeliaceae