''Annulatascus'' is a
genus
Genus (; : genera ) is a taxonomic rank above species and below family (taxonomy), family as used in the biological classification of extant taxon, living and fossil organisms as well as Virus classification#ICTV classification, viruses. In bino ...
of
fungi
A fungus (: fungi , , , or ; or funguses) is any member of the group of eukaryotic organisms that includes microorganisms such as yeasts and mold (fungus), molds, as well as the more familiar mushrooms. These organisms are classified as one ...
in the
Annulatascaceae
The Annulatascaceae are a family (biology), family of fungi in the monotypic order Annulatascales of the class Sordariomycetes of the Ascomycota. The family had not been assigned to any order (biology), order, until 2020 when it was placed with a ...
family of the
Ascomycota
Ascomycota is a phylum of the kingdom Fungi that, together with the Basidiomycota, forms the subkingdom Dikarya. Its members are commonly known as the sac fungi or ascomycetes. It is the largest phylum of Fungi, with over 64,000 species. The def ...
. The relationship of this
taxon
In biology, a taxon (back-formation from ''taxonomy''; : taxa) is a group of one or more populations of an organism or organisms seen by taxonomists to form a unit. Although neither is required, a taxon is usually known by a particular name and ...
to other taxa within the
Sordariomycetes
Sordariomycetes is a class of fungi in the subdivision Pezizomycotina (Ascomycota). It is the second-largest class of Ascomycota, with a worldwide distribution that mostly accommodates terrestrial based taxa, although several can also be found in ...
class
Class, Classes, or The Class may refer to:
Common uses not otherwise categorized
* Class (biology), a taxonomic rank
* Class (knowledge representation), a collection of individuals or objects
* Class (philosophy), an analytical concept used d ...
is unknown (''
incertae sedis
or is a term used for a taxonomy (biology), taxonomic group where its broader relationships are unknown or undefined. Alternatively, such groups are frequently referred to as "enigmatic taxa". In the system of open nomenclature, uncertainty ...
''), and it has not yet been placed with certainty into any
order
Order, ORDER or Orders may refer to:
* A socio-political or established or existing order, e.g. World order, Ancien Regime, Pax Britannica
* Categorization, the process in which ideas and objects are recognized, differentiated, and understood
...
.
The genus is characterized by taxa that are
saprobic
Saprotrophic nutrition or lysotrophic nutrition is a process of chemoheterotrophic extracellular digestion involved in the processing of decayed (dead or waste) organic matter. It occurs in saprotrophs, and is most often associated with fungi ...
on submerged, decaying plant material in freshwater habitats.
Morphologically the taxa possess dark brown to black perithecia, long tapering hyaline septate
paraphyses
Paraphyses are erect sterile filament-like support structures occurring among the reproductive apparatuses of fungi, ferns, bryophytes and some thallophytes. The singular form of the word is paraphysis.
In certain fungi, they are part of the f ...
, eight-spored
asci with relatively massive J− apical rings, and
ascospore
In fungi, an ascospore is the sexual spore formed inside an ascus—the sac-like cell that defines the division Ascomycota, the largest and most diverse Division (botany), division of fungi. After two parental cell nucleus, nuclei fuse, the ascu ...
s that may or may not possess gelatinous sheaths or appendages. There are currently 17 species included in the genus.
Taxonomy
''Annulatascus'' is a genus established by mycologist
Kevin D. Hyde in 1992,
who created it to accommodate ''Annulatascus velatisporus'', the
type species
In International_Code_of_Zoological_Nomenclature, 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 spe ...
of the genus.
Species
Mycobank
MycoBank is an online database, documenting new mycological names and combinations, eventually combined with descriptions and illustrations. It is run by the Westerdijk Fungal Biodiversity Institute in Utrecht.
Each novelty, after being screene ...
currently lists 19 names, one of which has been transferred to another genus, and another that is a spelling variant, as species of ''Annulatascus''. Thus there are 17 recognized species.
*''
Annulatascus apiculatus''
F.R.Barbosa & Gusmão 2009
*''
Annulatascus aquaticus''
W.H.Ho, K.D.Hyde & Hodgkiss 1999
*''
Annulatascus aquatorba''
Boonyuen & Sri-indrasutdhi 2012
*''
Annulatascus biatriisporus''
K.D.Hyde 1995
*''
Annulatascus citriosporus''
J.Fröhl. & K.D.Hyde 2000
*''
Annulatascus fusiformis''
K.D.Hyde & S.W.Wong 2000
*''
Annulatascus hongkongensis'' W.H.Ho, Ranghoo, K.D.Hyde & Hodgkiss 1999
*''
Annulatascus joannae''
K.M.Tsui, Hodgkiss & K.D.Hyde 2002
*''
Annulatascus lacteus''
K.M.Tsui, Hodgkiss & K.D.Hyde 2002
*''
Annulatascus licaulae''
J.Fröhl. & K.D.Hyde 2000
*''
Annulatascus liputii''
L.Cai & K.D.Hyde 2002
*''
Annulatascus menglensis''
D.M.Hu, L.Cai & K.D.Hyde 2012
*''
Annulatascus nilensis''
Abdel-Wahab & Abdel-Aziz 2011
*''
Annulatascus palmietensis''
Goh, K.D.Hyde & Steinke 1998
*''
Annulatascus triseptatus''
S.W. Wong, K.D.Hyde & E.B.G.Jones 1999
*''
Annulatascus tropicalis''
Ranghoo & K.D.Hyde 2002
*''
Annulatascus velatisporus''
K.D.Hyde 1992
References
{{Taxonbar, from=Q4769731
Sordariomycetes genera
Annulatascaceae