From Wikipedia, the free encyclopedia

Phaeographopsis
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Fungi
Division: Ascomycota
Class: Lecanoromycetes
Order: Graphidales
Family: Graphidaceae
Genus: Phaeographopsis
Sipman (1997)
Type species
Phaeographopsis indica
(Patw. & Nagarkar) Sipman & Aptroot (2007)
Species

P. indica
P. neotropica
P. palaeotropica

Phaeographopsis is a genus of script lichens in the family Graphidaceae. It has three species. [1] [2]

Taxonomy

The genus was circumscribed by the Dutch lichenologist Harrie Sipman in 1997, with P. indica assigned as the type species; this species had originally been described as a member of Phaeographis. [3] However, this species was not validly published because it did not provide a specific page number, but rather a range of pages (an interval) where the original description could be found. This general reference to a range of pages does not meet the precise requirements of the International Code of Nomenclature for algae, fungi, and plants. The name was published validly a decade later in 2007. [4]

Description

Genus Phaeographopsis is characterised by a crust-like form ( crustose) that typically grows on the bark of trees ( corticolous). Its growth is just beneath the outer bark layer of the tree (epiphloeodic). This positions Phaeographopsis closely to the genus Phaeographis, yet it can be distinguished by several key characteristics. [3]

One of the primary differences lies in the structure of its ascospores, which are the reproductive spores produced in the asci. In Phaeographopsis, these ascospores lack an internal spore wall ( endospore), which is a notable deviation from some related lichens. Additionally, the asci of Phaeographopsis are characterised by a thin dome at the apex, a distinct structural feature. [3]

The paraphyses (sterile filaments among the asci) in this genus are branched at the tips (apically branched). Unlike many lichens, Phaeographopsis does not have a protective outer layer ( cortex) on its thallus, which is the main vegetative body of the lichen. Furthermore, this genus produces pycnidia (tiny fruiting bodies that release asexual spores) atop small, rounded protrusions known as tubercules. [3]

Species

References

  1. ^ Wijayawardene, N.N.; Hyde, K.D.; Dai, D.Q.; Sánchez-García, M.; Goto, B.T.; Saxena, R.K.; et al. (2022). "Outline of Fungi and fungus-like taxa – 2021". Mycosphere. 13 (1): 53–453 [159]. doi: 10.5943/mycosphere/13/1/2. hdl: 10481/76378.
  2. ^ "Phaeographopsis". Catalogue of Life. Species 2000: Leiden, the Netherlands. Retrieved 15 January 2024.
  3. ^ a b c d Aptroot, André; Diederich, Paul; Sérusiaux, Emmanuel; Sipman, Harrie J.M. (1997). Lichens and lichenicolous fungi from New Guinea. Bibliotheca Lichenologica. Vol. 64. Berlin/Stuttgart: J. Cramer. p. 129. ISBN  978-3-443-58043-8.
  4. ^ Aptroot, A.; Saipunkaew, W.; Sipman, H.J.M.; Sparrius, L.B.; Wolseley, P.A. (2007). "New lichens from Thailand, mainly microlichens from Chiang Mai" (PDF). Fungal Diversity. 24: 75–134.
  5. ^ a b Kalb, K. (2004). "New or otherwise interesting lichens. II". Bibliotheca Lichenologica. 88: 301–329.
From Wikipedia, the free encyclopedia

Phaeographopsis
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Fungi
Division: Ascomycota
Class: Lecanoromycetes
Order: Graphidales
Family: Graphidaceae
Genus: Phaeographopsis
Sipman (1997)
Type species
Phaeographopsis indica
(Patw. & Nagarkar) Sipman & Aptroot (2007)
Species

P. indica
P. neotropica
P. palaeotropica

Phaeographopsis is a genus of script lichens in the family Graphidaceae. It has three species. [1] [2]

Taxonomy

The genus was circumscribed by the Dutch lichenologist Harrie Sipman in 1997, with P. indica assigned as the type species; this species had originally been described as a member of Phaeographis. [3] However, this species was not validly published because it did not provide a specific page number, but rather a range of pages (an interval) where the original description could be found. This general reference to a range of pages does not meet the precise requirements of the International Code of Nomenclature for algae, fungi, and plants. The name was published validly a decade later in 2007. [4]

Description

Genus Phaeographopsis is characterised by a crust-like form ( crustose) that typically grows on the bark of trees ( corticolous). Its growth is just beneath the outer bark layer of the tree (epiphloeodic). This positions Phaeographopsis closely to the genus Phaeographis, yet it can be distinguished by several key characteristics. [3]

One of the primary differences lies in the structure of its ascospores, which are the reproductive spores produced in the asci. In Phaeographopsis, these ascospores lack an internal spore wall ( endospore), which is a notable deviation from some related lichens. Additionally, the asci of Phaeographopsis are characterised by a thin dome at the apex, a distinct structural feature. [3]

The paraphyses (sterile filaments among the asci) in this genus are branched at the tips (apically branched). Unlike many lichens, Phaeographopsis does not have a protective outer layer ( cortex) on its thallus, which is the main vegetative body of the lichen. Furthermore, this genus produces pycnidia (tiny fruiting bodies that release asexual spores) atop small, rounded protrusions known as tubercules. [3]

Species

References

  1. ^ Wijayawardene, N.N.; Hyde, K.D.; Dai, D.Q.; Sánchez-García, M.; Goto, B.T.; Saxena, R.K.; et al. (2022). "Outline of Fungi and fungus-like taxa – 2021". Mycosphere. 13 (1): 53–453 [159]. doi: 10.5943/mycosphere/13/1/2. hdl: 10481/76378.
  2. ^ "Phaeographopsis". Catalogue of Life. Species 2000: Leiden, the Netherlands. Retrieved 15 January 2024.
  3. ^ a b c d Aptroot, André; Diederich, Paul; Sérusiaux, Emmanuel; Sipman, Harrie J.M. (1997). Lichens and lichenicolous fungi from New Guinea. Bibliotheca Lichenologica. Vol. 64. Berlin/Stuttgart: J. Cramer. p. 129. ISBN  978-3-443-58043-8.
  4. ^ Aptroot, A.; Saipunkaew, W.; Sipman, H.J.M.; Sparrius, L.B.; Wolseley, P.A. (2007). "New lichens from Thailand, mainly microlichens from Chiang Mai" (PDF). Fungal Diversity. 24: 75–134.
  5. ^ a b Kalb, K. (2004). "New or otherwise interesting lichens. II". Bibliotheca Lichenologica. 88: 301–329.

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