Canoparmelia roseoreagens

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Canoparmelia roseoreagens
Scientific classification OOjs UI icon edit-ltr.svg
Domain: Eukaryota
Kingdom: Fungi
Division: Ascomycota
Class: Lecanoromycetes
Order: Lecanorales
Family: Parmeliaceae
Genus: Canoparmelia
Species:
C. roseoreagens
Binomial name
Canoparmelia roseoreagens
Marcelli, Canêz & Elix (2009)

Canoparmelia roseoreagens is a species of corticolous (bark-dwelling), foliose lichen in the family Parmeliaceae. [1]

Contents

Taxonomy

Found in Brazil, it was formally described as a new species in 2009 by the lichenologists Marcelo Marcelli, Luciana da Silva Canêz, and John Elix. The type specimen was collected from a Brazilian pine forest in Fazenda da Estrela (Vacaria, Rio Grande do Sul) at an elevation of 905 m (2,969 ft), where it was found growing on tree bark. [2]

Description

This lichen has a greyish appearance and is sublaciniate, meaning it has irregularly branched lobes that are adnate (attached) and contiguous (touching), with truncate apices and a smooth to crenate margin. The upper surface is smooth and may have weak or absent maculae , which are reticulate (net-like), more evident in the young parts and may form small cracks. There are no lacinules , pustules or soredia. The isidia are the same colour as the thallus, cylindrical, and erect, ranging from simple to mostly coralloid , brown, and measuring 0.10–0.45 mm wide. The medulla is white and does not produce a purple pigment when treated with K. The lower surface is black to dark brown, slightly shiny, and rugose (wrinkled); the marginal zone is brown, shiny, and rugose (or sometimes papillate ); the rhizines (root-like structures) are white, dark brown, or rarely black, simple to furcate (forked), 0.25–0.50 mm long, few to frequent, and almost evenly distributed. There are no apothecia (cup-like sexual reproductive structures) or pycnidia (small asexual reproductive structures). [2]

Canoparmelia roseoreagens contains several major lichen products: methyl olivetolcarboxylate, methyl divarinolcarboxylate, and eight unknown depsides that are derivatives of norsekikaic acid, norhomosekikaic acid, and norhyperhomosekikaic acids. The species epithet roseoreagens refers to the C+ (rose) chemical spot test reaction observed on the medulla. [2]

Habitat and distribution

Originally described from specimens collected in the Fazenda da Estrela in Northern Brazil, this corticolous (bark-dwelling) species has since been recorded from São Maurício (Braço do Norte, Santa Catarina) in Southern Brazil. [3]

Related Research Articles

<i>Myelochroa</i> Genus of lichens

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.

<i>Canoparmelia</i> Genus of lichens

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.

<i>Punctelia</i> Genus of foliose lichens

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.

Hypotrachyna lueckingii is a species of corticolous (bark-dwelling), foliose lichen in the family Parmeliaceae. It is only known to occur at high elevations on the Cordillera de Talamanca in Costa Rica.

Canoparmelia albomaculata is a species of lichen in the family Parmeliaceae. This species is very similar to the apostulate Canoparmelia caroliniana, showing the same colour, size and reticulate maculae. C. caroliniana, however, has true isidia. Big coralloid pustules that in some cases become sorediate are a characteristic feature for C. albomaculata.

Canoparmelia cassa is a species of foliose lichen in the family Parmeliaceae. This species is characteristic by the occurrence of isidia together with fatty acids. It is similar externally to Canoparmelia amazonica. Its epithet cassa is derived from the Latin cassus, meaning "devoid", due to this species' lack of medullar reactive substances.

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 purpurascens is a species of foliose lichen in the family Parmeliaceae. Found in Brazil, it was formally described as a new species in 2007 by lichenologists Marcelo Marcelli and Luciana da Silva Canêz. The type specimen was collected in the municipality of Vicara in the southern Brazilian state of Rio Grande do Sul. There it was found growing on a basaltic rock in an open field. The specific epithet purpurascens refers to the unusual K+ purple reaction of the medulla.

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 subpraesignis is a species of foliose lichen in the family Parmeliaceae. It occurs in Mexico, South America, and East Africa, where it grows on bark and on rocks. Major characteristics of the lichen that distinguish it from other Punctelia species include the C+ and KC+ rose spot tests of the medulla, ascospores that are smaller than 20 μm, and unciform (hooklike) conidia.

<i>Punctelia bolliana</i> Species of lichen

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.

Canoparmelia consanguinea is a species of saxicolous (rock-dwelling), foliose lichen in the family Parmeliaceae. Found in Brazil, it was formally described as a new species in 2009 by lichenologists Marcelo Marcelli, Luciana da Silva Canêz, and John Elix. The type specimen was collected from an open field in Fazenda da Estrela at an altitude of 920 m (3,020 ft), where it was growing on basaltic rock.

Canoparmelia subroseoreagens is a species of foliose lichen in the family Parmeliaceae. Found in Brazil, it was formally described as a new species in 2009 by lichenologists Marcelo Marcelli, Luciana da Silva Canêz, and John Elix. The type specimen was collected from a Brazilian pine forest in Fazenda da Estrela at an altitude of 905 m (2,969 ft), where it was found growing on tree bark. The lichen is named for its similarity to Canoparmelia roseoreagens but that species produces isidia rather than soredia.

Fuscopannaria rugosa is a species of corticolous (bark-dwelling), lichen in the family Pannariaceae. It is found in Hubei and Guanxi in China, where it grows in mountainous forests. Fuscopannaria rugosa is identifiable by its foliose-squamulose thallus, which has longitudinal wrinkles on the upper surface. It also has a distinct hypothallus, a relatively thick algal layer, and a cortex made up of thick-walled cells in both the thalline and apothecial structures. It produces simple, hyaline ascospores that have a smooth, pointed tip at their apex.

Pertusaria albineoides is a species of corticolous (bark-dwelling), crustose lichen in the family Pertusariaceae. Found on the Galápagos Islands, it was formally described as a new species in 2015 by Frank Bungartz, A.W.Archer, Alba Yánez-Ayabaca, and John Elix. The type specimen was collected on Alcedo Volcano at an altitude of 1,089 m (3,573 ft), where it was found growing on a partially shaded, rain- and wind-exposed trunk of Scalesia microcephala. The species epithet refers to the similarity to the species Pertusaria albinea, from which it differs by having thin-walled ellipsoid-shaped ascospores that are longer and narrower.

Pertusaria cerroazulensis is a species of corticolous (bark-dwelling), crustose lichen in the family Pertusariaceae. Found on the Galápagos Islands, it was formally described as a new species in 2015 by Frank Bungartz, Alan W. Archer, Alba Yánez-Ayabaca, and John Elix. The type specimen was collected from the Cerro Azul volcano at an altitude of 1,038 m (3,406 ft), where in a small, shaded woodland, it was growing on twigs of Psidium galapageium. The species epithet refers to the type locality.

Pertusaria lueckingii is a species of corticolous (bark-dwelling), crustose lichen in the family Pertusariaceae. Found on the Galápagos Islands, it was formally described as a new species in 2015 by Frank Bungartz, Alan W. Archer, and John Elix. The type specimen was collected on Floreana Island, where it was found growing on the bark of a south-exposed trunk of Cedrella odorata. The species epithet honours German lichenogist Robert Lücking, "who first recognized this taxon as an independent species".

Corticorygma is a monotypic fungal genus in the subfamily Graphidoideae of the family Graphidaceae. It contains a single species, the corticolous (bark-dwelling) crustose lichen Corticorygma stellatum. This script lichen is found in the shaded understory of rainforests in the Brazilian states of Rondônia and Paraná.

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.

References

  1. "Canoparmelia roseoreagens Marcelli, Canêz & Elix". Catalogue of Life . Species 2000: Leiden, the Netherlands. Retrieved 15 March 2023.
  2. 1 2 3 Canêz, L.; Marcelli, M.P.; Elix, J.A. (2009). "New Brazilian species of Canoparmelia with medullary olivetoric, anziaic, and sekikaic complexes". Mycotaxon. 110: 465–472. doi: 10.5248/110.465 .
  3. Käffer, Márcia Isabel; de Azevedo Martins, Suzana Maria (2014). "Evaluation of the environmental quality of a protected riparian forest in Southern Brazil". Bosque (Valdivia). 35 (3): 325–336. doi:10.4067/S0717-92002014000300007.