''Gyalidea goughensis'' is a species of
crustose lichen in the family
Gomphillaceae
The Gomphillaceae are a family of lichens in the order Ostropales. Species in this family are found mostly in tropical regions.
Genera
According to a recent (2020) estimate, the Gomphillaceae comprise 26 genera and about 420 species. The followi ...
. Found in the
Tristan da Cunha–Gough Island, it was
described as a new species in 2010 by Norwegian lichenologist Dag Øvstedal. The
type
Type may refer to:
Science and technology Computing
* Typing, producing text via a keyboard, typewriter, etc.
* Data type, collection of values used for computations.
* File type
* TYPE (DOS command), a command to display contents of a file.
* Ty ...
specimen was collected from the inland of The Admirals (a small satellite island east of
Gough Island
upright=1.3, Map of Gough island
Gough Island ( ), also known historically as Gonçalo Álvares, is a rugged volcanic island in the South Atlantic Ocean. It is a dependency of Tristan da Cunha and part of the British overseas territory of Sain ...
). Here it was found growing on the stem of an
Island Cape myrtle (''Phylica arborea'') tree at an altitude of . The species is known only from the
type locality
Type locality may refer to:
* Type locality (biology)
* Type locality (geology)
See also
* Local (disambiguation)
* Locality (disambiguation)
{{disambiguation ...
.
The lichen has a thin, green-grey crust-like
thallus that grows in bark fissures. Its
ascospores, which number eight per
ascus
An ascus (; ) is the sexual spore-bearing cell produced in ascomycete fungi. Each ascus usually contains eight ascospores (or octad), produced by meiosis followed, in most species, by a mitotic cell division. However, asci in some genera or s ...
, are 3-
septate and measure about 10 by 2.5
μm
The micrometre ( international spelling as used by the International Bureau of Weights and Measures; SI symbol: μm) or micrometer (American spelling), also commonly known as a micron, is a unit of length in the International System of Unit ...
. No
secondary chemicals were detected using
thin-layer chromatography.
References
Ostropales
Lichen species
Lichens described in 2010
Lichens of Tristan da Cunha
{{Ostropales-stub