Pier Andrea Saccardo

The fungi imperfecti, also laterally called Deuteromycota, Deuteromycetes or imperfect fungi are fungi which do not fit into the commonly established taxonomic classifications of fungi that are based on biological species concepts or morphological characteristics of sexual structures because their sexual form of reproduction has never been observed. They are known as imperfect fungi because only their asexual and vegetative phases are known. They have asexual form of reproduction, meaning that these fungi produce their spores asexually, in the process called sporogenesis. There are about

Agaricus bitorquis, commonly known as torq, banded agaric, spring agaric, banded agaricus, urban agaricus, or pavement mushroom, is an edible white mushroom of the genus Agaricus, similar to the common button mushroom that is sold commercially. The name supersedes Agaricus rodmani.

Discina ancilis, commonly known as pig's ears is a brown to tannish, wrinkled, cup- or ear-shaped fungus, sometimes with short, stout stalk.

Gyrodon lividus, commonly known as the alder bolete, is a pored mushroom bearing close affinity to the genus Paxillus. Although found predominantly in Europe, where it grows in a mycorrhizal association with alder, it has also recorded from China, Japan and California. Fruit bodies are distinguished from other boletes by decurrent bright yellow pores that turn blue-grey on bruising. G. lividus mushrooms are edible.

Mycena interrupta (commonly known as the pixie's parasol) is a species of mushroom. It has a Gondwanan distribution pattern, being found in Australia, New Zealand, New Caledonia and Chile. In Australia, it is found in Victoria, Tasmania, New South Wales, South Australia, and Queensland, where its distribution is limited to Lamington National Park.

The Ascobolaceae are a family of fungi in the order Pezizales. A 2008 estimate places 6 genera and 129 species in the family.

Russula risigallina is a species of mushroom. It was previously known as R. chamaeleontina. It is a small yellow russula that is edible and palatable, although identifying the species correctly can be difficult. This mushroom can be found in various countries throughout Europe.

Septoria is a genus of fungal plant pathogens in the phylum Ascomycota. They cause necrotic leaf spots on the leaves of their hosts, producing filiform or cylindrical conidia inside pycnidia embedded in the leaves. Economically important species cause diseases on field crops, forages, and vegetables. The genus is widespread, and estimated to contain 1072 species.

Mycena chlorophos is a species of agaric fungus in the family Mycenaceae. First described in 1860, the fungus is found in subtropical Asia, including India, Japan, Taiwan, Polynesia, Indonesia, and Sri Lanka, in Australia, and Brazil. Fruit bodies (mushrooms) have pale brownish-grey sticky caps up to 30 mm (1.2 in) in diameter atop stems 6–30 mm (0.2–1.2 in) long and up to a millimeter thick. The mushrooms are bioluminescent and emit a pale green light. Fruiting occurs in forests on fallen woody debris such as dead twigs, branches, and logs. The fungus can be made to grow and fruit in

Penicillium digitatum is a mesophilic fungus found in the soil of citrus-producing areas. It is a major source of post-harvest decay in fruits, and is responsible for the widespread post-harvest disease in Citrus fruit known as green rot or green mould. In nature, this necrotrophic wound pathogen grows in filaments and reproduces asexually through the production of conidiophores and conidia. P. digitatum can also be cultivated in the laboratory setting. Alongside its pathogenic life cycle, P. digitatum is also involved in other human, animal, and plant interactions, and is currently being

Tricholoma atrosquamosum, commonly known as dark-scaled knight, is an edible gilled mushroom native to Europe. The grey-capped fruit bodies are generally found singly or in small groups in deciduous woodland on chalk-based soils.

Pleurotus calyptratus, (syn. Lentodiopsis calyptrata, Tectella calyptrata) is a species of fungus from the family Pleurotaceae. It has a distinctive delicate veil on young fruiting bodies. Phylogenetic research has shown that while it belongs to P. djamor-cornucopiae clade, it forms its own intersterility group.

Panaeolus cinctulus, syn. P. subbalteatus, commonly known as the belted panaeolus, banded mottlegill, or subbs, is a very common, widely distributed psilocybin mushroom.

Cantharellus amethysteus, the amethyst chanterelle, is a species of Cantharellus from Europe.

Phoma is a genus of common coelomycetous soil fungi. It contains many plant pathogenic species.

Geopyxis carbonaria is a species of fungus in the genus Geopyxis, family Pyronemataceae. First described to science in 1805, and given its current name in 1889, the species is commonly known as the charcoal loving elf-cup, dwarf acorn cup, stalked bonfire cup, or pixie cup. The small, goblet-shaped fruitbodies of the fungus are reddish-brown with a whitish fringe and measure up to 2 centimetres (3⁄4 in) across. They have a short, tapered stalk. The fungus is distributed throughout many temperate regions of the Northern Hemisphere. It is found in Europe, Turkey, and North America. Fruitbodies

Phomopsis is a genus of ascomycete fungi in the family Diaporthaceae. It was previously in the Valsaceae family.

Mycena purpureofusca, commonly known as the purple edge bonnet, is a species of agaric fungus in the family Mycenaceae. First described by Charles Horton Peck in 1885, The mushroom is named for the characteristic dark greyish-purple color of its gill edges. The fruit bodies have conical to bell-shaped purple caps up to 2.5 cm (1 in) set atop slender stipes up to 10 cm (4 in) long. In the field, the mushrooms can usually be distinguished from similar species by characteristics such as the dark purple gill edges, the deep purple cap center, and its cartilagineous consistency. The species is

Entoloma bloxamii, commonly known as the big blue pinkgill, is a species of agaric (gilled mushroom) in the family Entolomataceae. The species has a European distribution, occurring mainly in agriculturally unimproved grassland. It has been reported from North America, but at least some of these reports represent a distinct species, E. medianox. Threats to the habitat of E. bloxamii have resulted in it being assessed as globally "vulnerable" on the IUCN Red List of Threatened Species.

Alternaria brassicae is a plant pathogen able to infect most Brassica species including important crops such as broccoli, cabbage and oil seed rape. It causes damping off if infection occurs in younger plants and less severe leaf spot symptoms on infections of older plants.

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Panaeolus cyanescens, commonly known as the blue-staining panaeolus, is a psychoactive mushroom in the Bolbitiaceae family. When cultivated for their psychedelic properties, they may be referred to as Pan Cyan.

Gibberella is a genus of fungi in the family Nectriaceae. In 1926, Japanese scientists observed that rice plants infected with Gibberella had abnormally long stems ("foolish seedling disease"). A substance, gibberellin, was derived from this fungus. Gibberellin is a plant hormone that promotes cell elongation, flower formation, and seedling growth.

Geopyxis is a genus of fungi in the family Pyronemataceae. The genus has a widespread distribution. Molecular phylogenetic studies published in 2007 suggest that the genus is not monophyletic.

Bisporella is a genus of fungi in the family Helotiaceae.

Amanita hemibapha, commonly known as the half-dyed slender Caesar, is a species of agaric found in southeast Asia and Oceania, although some distribution reports may refer to different taxa.

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Mycena citricolor is a species of mushroom-forming fungus in the family Mycenaceae. It is a plant pathogen producing leaf spots on coffee plants. This fungus causes the disease commonly known as American Leaf Spot. Mycena citricolor affects coffee plants, primarily in Latin America, but can grow on other plants as well. This fungus can grow on all parts of the coffee plant including the leaves, stems and fruits. When grown on the leaves, Mycena citricolor results in leaves with holes that often fall from the plant.

Cryphonectria is a fungal genus in the order Diaporthales. The most well-known and well-studied species in the genus is Cryphonectria parasitica, the species which causes chestnut blight. The genus was, for a time, considered synonymous with Endothia, but the two are now recognised as distinct. Taxonomic studies in 2006 limited the genus to four species, but a fifth, Cryphonectria naterciae, was described in 2011 from Portugal.

Crepidotus cesatii, commonly known as the roundspored oysterling, is a species of saprophytic fungus in the family Crepidotaceae with a stipeless sessile cap. It is often found on woody and herbaceous plant debris from many different hosts including conifers, appearing from late summer to winter usually in small scattered groups. Often confused with Crepidotus variabilis, it can be distinguished by its different spores.