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