Arthrosporella
Encyclopedia
Arthrosporella is a genus
of fungi in the Tricholomataceae
family. It is a monotypic
genus, containing the single species Arthrosporella ditopa, found in South America. The genus was described by mycologist Rolf Singer
in 1970.
Singer originally described the single species in 1950 for an agaric
he and a colleague had collected in Tucumán province
, Argentina
. He placed the new species in the genus Armillariella, which he considered to be the correct name of Armillaria. However, he later came to realize that the species was unusual due to being found with joint teleomorphic and anamorphic
forms, both of which produced arthrospores (a type of conidiospore). Thus he erected a new genus for the species in his 1970 treatment of tribe Omphalinae for the Flora Neotropica
series, also describing its anamorph as Nothoclavulina ditopa. The species and genus remain known from only the type collection, and more specifically the Nothoclavulina, the agaricoid half having been lost.
In 2005, in was announced that new species had been discovered that belonged to the genus, but further study indicated that they represented separate genera not closely related to Arthrosporella (as was first thought), and they were described in 2007 as Arthromyces
and Blastosporella
, the former in the Tricholomataceae, the latter in the Lyophyllaceae
.
Genus
In biology, a genus is a low-level taxonomic rank used in the biological classification of living and fossil organisms, which is an example of definition by genus and differentia...
of fungi in the Tricholomataceae
Tricholomataceae
The Tricholomataceae are a large family of mushrooms within the Agaricales. A classic "wastebasket taxon", the Tricholomataceae is inclusive of any white-, yellow-, or pink-spored genera in the Agaricales not already classified as belonging to the Amanitaceae, Lepiotaceae, Hygrophoraceae,...
family. It is a monotypic
Monotypic
In biology, a monotypic taxon is a taxonomic group with only one biological type. The term's usage differs slightly between botany and zoology. The term monotypic has a separate use in conservation biology, monotypic habitat, regarding species habitat conversion eliminating biodiversity and...
genus, containing the single species Arthrosporella ditopa, found in South America. The genus was described by mycologist Rolf Singer
Rolf Singer
Rolf Singer was a German-born mycologist and one of the most important taxonomists of gilled mushrooms in the 20th century....
in 1970.
Singer originally described the single species in 1950 for an agaric
Agaric
An agaric is a type of fungal fruiting body characterized by the presence of a pileus that is clearly differentiated from the stipe , with lamellae on the underside of the pileus. "Agaric" can also refer to a basidiomycete species characterized by an agaric-type fruiting body...
he and a colleague had collected in Tucumán province
Tucumán Province
Tucumán is the most densely populated, and the smallest by land area, of the provinces of Argentina. Located in the northwest of the country, the capital is San Miguel de Tucumán, often shortened to Tucumán. Neighboring provinces are, clockwise from the north: Salta, Santiago del Estero and...
, Argentina
Argentina
Argentina , officially the Argentine Republic , is the second largest country in South America by land area, after Brazil. It is constituted as a federation of 23 provinces and an autonomous city, Buenos Aires...
. He placed the new species in the genus Armillariella, which he considered to be the correct name of Armillaria. However, he later came to realize that the species was unusual due to being found with joint teleomorphic and anamorphic
Teleomorph, anamorph and holomorph
The terms teleomorph, anamorph, and holomorph apply to portions of the life cycles of fungi in the phyla Ascomycota and Basidiomycota.*Teleomorph: the sexual reproductive stage , typically a fruiting body....
forms, both of which produced arthrospores (a type of conidiospore). Thus he erected a new genus for the species in his 1970 treatment of tribe Omphalinae for the Flora Neotropica
Flora Neotropica
Flora Neotropica is a series of monographs published by the New York Botanical Garden Press, and is the official publication of the Organization for Flora Neotropica. It covers the taxonomic treatment of American plants and plant families in the region of the Tropic of Cancer to the Tropic of...
series, also describing its anamorph as Nothoclavulina ditopa. The species and genus remain known from only the type collection, and more specifically the Nothoclavulina, the agaricoid half having been lost.
In 2005, in was announced that new species had been discovered that belonged to the genus, but further study indicated that they represented separate genera not closely related to Arthrosporella (as was first thought), and they were described in 2007 as Arthromyces
Arthromyces
Arthromyces is a genus of fungi in the Tricholomataceae family. The genus contain two species found in Central America....
and Blastosporella
Blastosporella
Blastosporella is a genus of fungus in the Lyophyllaceae family. The genus is monotypic, containing the single South American species Blastosporella zonata, described as new to science in 2007. The fungus produces fruit bodies characterized by producing spherical balls of blastospores that cover...
, the former in the Tricholomataceae, the latter in the Lyophyllaceae
Lyophyllaceae
The Lyophyllaceae are a family of fungi in the Agaricales order. The family contains 8 genera and 157 species....
.