Lecideales
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The Lecideales are an
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 ...
of
lichen A lichen ( , ) is a hybrid colony (biology), colony of algae or cyanobacteria living symbiotically among hypha, filaments of multiple fungus species, along with yeasts and bacteria embedded in the cortex or "skin", in a mutualism (biology), m ...
ized
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
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 ...
Lecanoromycetes Lecanoromycetes is the largest class of lichenized fungi. It belongs to the subphylum Pezizomycotina in the phylum Ascomycota. The asci (spore-bearing cells) of the Lecanoromycetes most often release spores by rostrate dehiscence. The group is ...
. The order contains two families: the ''
Lecideaceae The Lecideaceae are a family (biology), family of lichen-forming fungi in the order Lecideales. It contains about 30 genus, genera and roughly 250 species. A major distinguishing characteristic of the family is the form of the ascomata, fruit ...
'', which contains 29 genera and about 260 species, and
Lopadiaceae ''Lopadium'' is a genus of lichen-forming fungi in the monotypic family Lopadiaceae, which is in the order Lecideales. The genus contains 12 species. These lichens form thin, crust-like growths made up of fine granules or tiny scale-like flakes ...
, which contains the single genus '' Lopadium'' of 10 species. According to Alan Fryday and colleagues in the ''Revisions of British and Irish Lichens'' series, "It seems clear that Lopadiaceae does not belong in Lecideales but its true systematic position is unclear."


References

Lecanoromycetes orders Lecideales Lichen orders Taxa described in 1934 Taxa named by Edvard August Vainio {{Lecanoromycetes-stub