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Cladus: Eukaryota
Supergroup: Opisthokonta
Regnum: Fungi
Divisio: Ascomycota
Subdivisio: Pezizomycotina
Classis: Leotiomycetes
Ordines: Cyttariales - Erysiphales - Helotiales - Leotiales - Rhytismatales - Thelebolales - Familia incertae sedis - Genus incertae sedis


Leotiomycetes Eriksson & Winka, 1997


The Leotiomycetes are a class of ascomycete fungi. Many of them cause serious plant diseases.


The class Leotiomycetes contains numerous species with an anamorph placed within the fungi imperfecti (deuteromycota), that have only recently found their place in the phylogenetic system. The older classifications placed Leotiomycetes into the Discomycetes clade (inoperculate Discomycetes). Molecular studies have recently shed some new light to the still obscure systematics. Most scholars consider Leotiomycetes a sister taxon to Sordariomycetes in the phylogenetic tree of Pezizomycotina. Its division into subclasses have received strong support by the molecular data, but the overall monophyly of Leotiomycetes is dubious.


* Most Leotiomycetes grow their asci in apothecia (seldom cleistothecia). The asci are cylindrical, without operculum.

* The spores are hyaline, of various shapes, and are released through a circular apical pore.

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Source: Wikipedia, Wikispecies: All text is available under the terms of the GNU Free Documentation License