''Mariannaea'' is a genus 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 ...
belonging to the family
Nectriaceae
The Nectriaceae comprise a family of fungi in the order Hypocreales. It was circumscribed by brothers Charles and Louis René Tulasne in 1865. In 2020, an Outline of fungi was produced and listed 70 genera and about 1,336 species.
It is a highl ...
.
The genus has
cosmopolitan distribution
In biogeography, a cosmopolitan distribution is the range of a taxon that extends across most or all of the surface of the Earth, in appropriate habitats; most cosmopolitan species are known to be highly adaptable to a range of climatic and en ...
.
The fungal genus was formally established by Samson (1974) to accommodate ''M. camptospora'', ''M. elegans'' and the variety ''M. elegans'' var. ''punicea'' and was typified by ''M. elegans''.
The genus is characterized by branched, septate
conidiophores
A conidium ( ; : conidia), sometimes termed an asexual chlamydospore or chlamydoconidium (: chlamydoconidia), is an asexual, non- motile spore of a fungus. The word ''conidium'' comes from the Ancient Greek word for dust, ('). They are also ...
with hyaline, flask-shaped
phialide
The phialide ( ; , diminutive of phiale, a broad, flat vessel) is a flask-shaped projection from the vesicle (dilated part of the top of conidiophore) of certain fungi. It projects from the mycelium without increasing in length unless a subsequ ...
s, 1–2-celled hyaline conidia mostly forming imbricate chains or slimy heads (Samson 1974;
Samson and Bigg 1988;
Samuels and Seifert 1991).
The sexual morph of ''Mariannaea'' has been linked to genus ''
Nectria
''Nectria'' is a genus of Ascomycete fungi. They are most often encountered as saprophytes on decaying wood but some species can also occur as parasites of trees, especially fruit trees (for example apple) and a number of other hardwood trees. ...
'' (Samuels and Seifert 1991),
[ and genus '']Cosmospora
''Cosmospora'' is a genus of Ascomycota, ascomycete fungi in the family Nectriaceae. The genus, as circumscribed by Rossman et al. (1998), included all the Nectria, nectrioid species with small, reddish, non-ornamented sexual fruiting bodies that ...
'' (Gräfenhan et al. 2011).polyphyletic
A polyphyletic group is an assemblage that includes organisms with mixed evolutionary origin but does not include their most recent common ancestor. The term is often applied to groups that share similar features known as Homoplasy, homoplasies ...
within the Nectriaceae family, while genus ''Mariannaea'' formed a monophyletic clade within Nectriaceae. Therefore, Gräfenhan et al. (2011) retained ''Mariannaea'' as a distinct genus in Nectriaceae.[
Five new species were further introduced in the genus (Crous et al. 2019;][ Watanabe and Hirose 2021;]
Species
As accepted by Species Fungorum
''Index Fungorum'' is an international project to index all formal names (Binomial nomenclature, scientific names) in the fungus Kingdom (biology), kingdom. As of 2015, the project is based at the Royal Botanic Gardens, Kew, one of three partn ...
;Mariannaea atlantica
''Mariannaea'' is a genus 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. ...
''
* ''Mariannaea camelliae
''Mariannaea'' is a genus of fungi belonging to the family Nectriaceae.
The genus has cosmopolitan distribution.
The fungal genus was formally established by Samson (1974) to accommodate ''M. camptospora'', ''M. elegans'' and the variety ''M. ...
''
* '' Mariannaea camptospora''
* ''Mariannaea chlamydospora
''Mariannaea'' is a genus of fungi belonging to the family Nectriaceae.
The genus has cosmopolitan distribution.
The fungal genus was formally established by Samson (1974) to accommodate ''M. camptospora'', ''M. elegans'' and the variety ''M. ...
''
* '' Mariannaea cinerea''
* ''Mariannaea clavispora
''Mariannaea'' is a genus of fungi belonging to the family Nectriaceae.
The genus has cosmopolitan distribution.
The fungal genus was formally established by Samson (1974) to accommodate ''M. camptospora'', ''M. elegans'' and the variety ''M. ...
''
* ''Mariannaea dimorpha
''Mariannaea'' is a genus of fungi belonging to the family Nectriaceae.
The genus has cosmopolitan distribution.
The fungal genus was formally established by Samson (1974) to accommodate ''M. camptospora'', ''M. elegans'' and the variety ''M. ...
''
* ''Mariannaea elegans
''Mariannaea elegans'' an anamorphic fungus (i.e., it reproduces exclusively asexually). It is mainly found on rotting wood and soil. ''M. elegans'' is not pathogenic to humans, animals, or plants.
History and taxonomy
Czech mycologist August ...
''
* '' Mariannaea fusiformis''
* ''Mariannaea humicola
''Mariannaea'' is a genus of fungi belonging to the family Nectriaceae.
The genus has cosmopolitan distribution.
The fungal genus was formally established by Samson (1974) to accommodate ''M. camptospora'', ''M. elegans'' and the variety ''M. ...
''
* '' Mariannaea imbricata''
* ''Mariannaea lignicola
''Mariannaea'' is a genus of fungi belonging to the family Nectriaceae.
The genus has cosmopolitan distribution.
The fungal genus was formally established by Samson (1974) to accommodate ''M. camptospora'', ''M. elegans'' and the variety ''M. ...
''
* ''Mariannaea macrochlamydospora
''Mariannaea'' is a genus of fungi belonging to the family Nectriaceae.
The genus has cosmopolitan distribution.
The fungal genus was formally established by Samson (1974) to accommodate ''M. camptospora'', ''M. elegans'' and the variety ''M. ...
''
* ''Mariannaea nipponica
''Mariannaea'' is a genus of fungi belonging to the family Nectriaceae.
The genus has cosmopolitan distribution.
The fungal genus was formally established by Samson (1974) to accommodate ''M. camptospora'', ''M. elegans'' and the variety ''M. ...
''
* ''Mariannaea pinicola
''Mariannaea'' is a genus of fungi belonging to the family Nectriaceae.
The genus has cosmopolitan distribution.
The fungal genus was formally established by Samson (1974) to accommodate ''M. camptospora'', ''M. elegans'' and the variety ''M. ...
''
* ''Mariannaea punicea
''Mariannaea'' is a genus of fungi belonging to the family Nectriaceae.
The genus has cosmopolitan distribution.
The fungal genus was formally established by Samson (1974) to accommodate ''M. camptospora'', ''M. elegans'' and the variety ''M. ...
''
* ''Mariannaea samuelsii
''Mariannaea'' is a genus of fungi belonging to the family Nectriaceae.
The genus has cosmopolitan distribution.
The fungal genus was formally established by Samson (1974) to accommodate ''M. camptospora'', ''M. elegans'' and the variety ''M. ...
''
* ''Mariannaea submersa
''Mariannaea'' is a genus of fungi belonging to the family Nectriaceae.
The genus has cosmopolitan distribution.
The fungal genus was formally established by Samson (1974) to accommodate ''M. camptospora'', ''M. elegans'' and the variety ''M. ...
'' Mariannaea superimposita
''Mariannaea'' is a genus of fungi belonging to the family Nectriaceae.
The genus has cosmopolitan distribution.
The fungal genus was formally established by Samson (1974) to accommodate ''M. camptospora'', ''M. elegans'' and the variety ''M. ...
''
* ''Mariannaea terricola
''Mariannaea'' is a genus of fungi belonging to the family Nectriaceae.
The genus has cosmopolitan distribution.
The fungal genus was formally established by Samson (1974) to accommodate ''M. camptospora'', ''M. elegans'' and the variety ''M. ...
''
Former species:[
* ''M. catenulatae'' = '' Chaetopsina catenulata''
* ''M. elegans'' var. ''punicea'' = ''Mariannaea punicea''
* ''M. pruinosa'' = '']Cordyceps pruinosa
''Cordyceps'' is a genus of ascomycete fungi (sac fungi) that includes over 260 species worldwide, many of which are parasitic. Diverse variants of cordyceps have had more than 1,500 years of use in Chinese medicine. Most ''Cordyceps'' species ...
'', Cordycipitaceae
The Cordycipitaceae are a family of parasitic fungi in the Ascomycota, class Sordariomycetes and order Hypocreales. The family was first published in 1969 by mycologist Hanns Kreisel, but the naming was invalid according to the code of Internatio ...
References
{{Taxonbar, from=Q10577246
Nectriaceae
Nectriaceae genera