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Neolecta

 

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Neolecta



 
 
Neolecta is a genus of ascomycetous fungi
Fungus

A fungus is a Eukaryote organism that is a member of the Kingdom Fungi . The fungi are a monophyletic group, also called the Eumycota , that is phylogeny distinct from the morphologically similar slime molds and water molds ....
 that have fruiting bodies in the shape of unbranched to lobed bright yellowish, orangish to pale yellow-green colored, club-shaped, smooth, fleshy columns up to about 7cm tall. The species share the English designation "Earth tongues" along with some better-known fungi (e.g. Geoglossum, Microglossum) with a similar general form, but in fact they are only distantly related.

It is the only genus belonging to the family Neolectaceae, which is the only family belonging to the order Neolectales, which is the only order belonging to the class Neolectomycetes, which belongs to the subdivision Taphrinomycotina
Taphrinomycotina

Taphrinomycotina is one of three subphyla constituting the Ascomycota and is more or less synonymous with the slightly older invalid name Archiascomycetes ....
 of the Ascomycota
Ascomycota

The Ascomycota are a Phylum of the kingdom Fungi, and subkingdom Dikarya, whose members are commonly known as the Sac Fungi. They are the largest phylum of Fungi, with over 30,000 species....
.

Neolecta is found in Asia, North America, Northern Europe and Argentina .






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Encyclopedia


Neolecta is a genus of ascomycetous fungi
Fungus

A fungus is a Eukaryote organism that is a member of the Kingdom Fungi . The fungi are a monophyletic group, also called the Eumycota , that is phylogeny distinct from the morphologically similar slime molds and water molds ....
 that have fruiting bodies in the shape of unbranched to lobed bright yellowish, orangish to pale yellow-green colored, club-shaped, smooth, fleshy columns up to about 7cm tall. The species share the English designation "Earth tongues" along with some better-known fungi (e.g. Geoglossum, Microglossum) with a similar general form, but in fact they are only distantly related.

It is the only genus belonging to the family Neolectaceae, which is the only family belonging to the order Neolectales, which is the only order belonging to the class Neolectomycetes, which belongs to the subdivision Taphrinomycotina
Taphrinomycotina

Taphrinomycotina is one of three subphyla constituting the Ascomycota and is more or less synonymous with the slightly older invalid name Archiascomycetes ....
 of the Ascomycota
Ascomycota

The Ascomycota are a Phylum of the kingdom Fungi, and subkingdom Dikarya, whose members are commonly known as the Sac Fungi. They are the largest phylum of Fungi, with over 30,000 species....
.

Neolecta is found in Asia, North America, Northern Europe and Argentina . The species all live in association with trees, and at least one, N. vitellina, grows from rootlets of its host , but it is not known whether the fungus is parasitic, saprotrophic, or mutualistic. It is said to be edible .

Neolecta does not have any close relatives. Phylogenetically, it weakly clusters with a bizarre group of basal Ascomycota including Taphrina
Taphrina

Taphrina is fungal genus within the Ascomycota that causes leaf and catkin curl diseases and witch's brooms of certain flowering plants. One of the more commonly observed species causes peach leaf curl....
, a dimorphic, half yeast
Yeast

Yeasts are eukaryote microorganisms classified in the Kingdom fungus, with about 1,500 species currently described; they dominate fungal diversity in the oceans....
, half filamentous genus parasitic on leaves, branches, and catkins, Schizosaccharomyces
Schizosaccharomyces

'Schizosaccharomyces' is a genus of binary fission yeasts. The most well studied species is Schizosaccharomyces pombe; like the distantly related Saccharomyces cerevisiae, S....
, a genus of fission yeasts (e.g. Schizosaccharomyces pombe
Schizosaccharomyces pombe

Schizosaccharomyces pombe, also called "fission yeast", is a species of yeast. It is used as a model organism in molecular biology and cell biology....
), and Pneumocystis, a yeast-like genus of parasites in mammalian lungs. Neolecta fruitbodies consist of hypha
Hypha

A hypha is a long, branching filamentous cell of a fungus, and also of unrelated Actinobacteria. In fungi, hyphae are the main mode of vegetative growth, and are collectively called a mycelium....
e and a hymenium
Hymenium

The hymenium is the tissue layer on the hymenophore of a fungal fruiting body where the cells develop into basidium or ascus, which produce spores....
. The hymenium lacks paraphyses
Paraphyses

Paraphyses - a technical anatomical term for part of the fertile spore-bearing layer in certain fungi. More specifically, paraphyses are sterile filamentous hyphal end cells composing part of the hymenium of Ascomycota and Basidiomycota interspersed among either the asci or basidia respectively, and not sufficiently differentiated into specia...
 and the asci
ASCI

ASCI or Asci may refer to:* Asci, the plural of Ascus, in fungal anatomy* Accelerated Strategic Computing Initiative* American Society for Clinical Investigation...
 lack croziers
Crozier (mycology)

A crozier is an anatomical feature of many fungi in the phylum Ascomycota that form at the base of ascus and look like hook-topped shepherd?s staffs or stylized religious crosiers....
, which makes the genus distinctive among other earth-tongues. Neolecta vitellina forms masses of conidia by budding, hinting at the possibility it also produces a yeast state. However, to date, the genus has been unculturable, suggesting it is either obligately parasitic or symbiotic. It provides important evidence for the evolutionary history of the Ascomycota and has been called a living fossil
Living fossil

Living fossil is an informal term for any living species of organism which appears to be the same as a species otherwise only known from fossils and which has no close living relatives....
.

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Footnotes