genus
Genus ( plural genera ) is a taxonomic rank used in the biological classification of extant taxon, living and fossil organisms as well as Virus classification#ICTV classification, viruses. In the hierarchy of biological classification, genus com ...
of
crustose lichen
Crustose lichens are lichens that form a crust which strongly adheres to the Substrate (biology), substrate (soil, rock, tree bark, etc.), making separation from the substrate impossible without destruction. The basic structure of crustose lichen ...
s in the subfamily Caloplacoideae of the family
Teloschistaceae
The Teloschistaceae are a large family of mostly lichen-forming fungi belonging to the class Lecanoromycetes in the division Ascomycota. The family, estimated to contain over 1800 species, was extensively revised in 2013, including the creation o ...
. It has four species.
Taxonomy
The genus was
circumscribed
In geometry, the circumscribed circle or circumcircle of a polygon is a circle that passes through all the vertices of the polygon. The center of this circle is called the circumcenter and its radius is called the circumradius.
Not every polyg ...
Ingvar Kärnefelt
Jan Eric Ingvar Kärnefelt (born 1944) is a Swedish lichenologist.
Early life and education
Kärnefelt was born in Gothenburg, Sweden in 1944. His initial goal in his higher-level studies at University of Cologne in 1966–1967 was to become ...
, Arne Thell, and Jae-Seoun Hur, as a segregate of the genus ''
Caloplaca
''Caloplaca'' is a lichen genus comprising a number of distinct species. Members of the genus are commonly called firedot lichen, jewel lichen.Field Guide to California Lichens, Stephen Sharnoff, Yale University Press, 2014, gold lichens, "ora ...
''. '' Huneckia pollinii'', a Northern Hemisphere species, was assigned as the
type species
In zoological nomenclature, a type species (''species typica'') is the species name with which the name of a genus or subgenus is considered to be permanently taxonomically associated, i.e., the species that contains the biological type specimen ...
, and the Australian '' H. rheinigera'' was also included in the initial circumscription of the genus. The generic name honours German chemist and lichenologist
Siegfried Huneck
Siegfried Huneck (9 September 1928 – 9 October 2011) was a German chemist and lichenologist. Much of his scientific career was hampered by the political situation in the former German Democratic Republic. He rejected pursuing a career in ac ...
, "1996 Acharius Medalist, who made many contributions to the field of lichen chemistry".
Description
''Huneckia'' species have a continuous, crustose
thallus
Thallus (plural: thalli), from Latinized Greek (), meaning "a green shoot" or "twig", is the vegetative tissue of some organisms in diverse groups such as algae, fungi, some liverworts, lichens, and the Myxogastria. Many of these organisms wer ...
that is quite thin, with a cortex made of paraplectenchymatous tissue—a type of tissue in which the fungal
hypha
A hypha (; ) is a long, branching, filamentous structure of a fungus, oomycete, or actinobacterium. In most fungi, hyphae are the main mode of vegetative growth, and are collectively called a mycelium.
Structure
A hypha consists of one or ...
e are oriented in all directions. The apothecia are
biatorine
A lichen ( , ) is a composite organism that arises from algae or cyanobacteria living among filaments of multiple fungi species in a mutualistic relationship.Lichen products found in the genus are
chrysophanol
Chrysophanol, also known as chrysophanic acid, is a fungal isolate and a natural anthraquinone. It is a C-3 methyl substituted chrysazin of the trihydroxyanthraquinone family.
Chrysophanol (other names; 1,8-dihydroxy-3-methyl-anthraquinone and ch ...
,
rhein
Rhein may refer to:
Places
* Rhine, a major river in Europe (german: Rhein, link=no)
* Rhein, a village in the municipality of Morsbach in North Rhine-Westphalia, Germany
* Rhein (Ostpreussen), a former name of the town Ryn in Poland
Ships
* ...
Blastenia
''Blastenia'' is a genus of lichenized fungi belonging to the family Teloschistaceae. The genus was first described in 1852 by Abramo Bartolommeo Massalongo.
The genus has cosmopolitan distribution.
Species include:
*'' Blastenia acaciae''
*' ...
'' in
morphology
Morphology, from the Greek and meaning "study of shape", may refer to:
Disciplines
*Morphology (archaeology), study of the shapes or forms of artifacts
*Morphology (astronomy), study of the shape of astronomical objects such as nebulae, galaxies, ...
, but differs in
ascospore
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 ...
structure: its spores have quite thick cell walls at the poles. The secondary chemistry is also different in some instances.
Species
*''
Huneckia crocina
''Huneckia'' is a genus of crustose lichens in the subfamily Caloplacoideae of the family Teloschistaceae. It has four species.
Taxonomy
The genus was circumscription (taxonomy), circumscribed in 2014 by Sergei Kondratyuk, John Alan Elix, Jack E ...
Galápagos Islands
The Galápagos Islands (Spanish: , , ) are an archipelago of volcanic islands. They are distributed on each side of the equator in the Pacific Ocean, surrounding the centre of the Western Hemisphere, and are part of the Republic of Ecuador ...