Discomycetes

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Photograph of a discomycetes. Scarlet Elf Cup fungus.JPG
Photograph of a discomycetes.

Discomycetes is a former taxonomic class of Ascomycete fungi which contains all of the cup, sponge and brain fungi, and some club-like fungi. [1] [2] It includes typical cup fungi like the scarlet elf cup and the orange peel fungus, and fungi with fruiting bodies of more unusual shape, such as morels, truffles and the swamp beacon. New taxonomic and molecular data fail to support the monophyly of the Discomycetes.

Contents

Description and features

Discomycetes are usually small and cup shaped, and come in singular form.

A common feature of Discomycetes are the asci, which are typically produced on the surface of cup-like fruiting bodies. In most discomycetes, each ascus contains eight sexual spores that are forcibly discharged into the air when mature.

In modern classifications, the members of the obsolete class are included in Pezizomycetes, Lecanoromycetes, Leotiomycetes and Sordariomycetes.

Related Research Articles

<i>Morchella</i> Genus of fungi

Morchella, the true morels, is a genus of edible sac fungi closely related to anatomically simpler cup fungi in the order Pezizales. These distinctive fungi have a honeycomb appearance due to the network of ridges with pits composing their caps. Morels are prized by gourmet cooks, particularly in Catalan and French cuisine. Due to difficulties in cultivation, commercial harvesting of wild morels has become a multimillion-dollar industry in the temperate Northern Hemisphere, in particular North America, Turkey, China, the Himalayas, India, and Pakistan where these highly prized fungi are found in abundance.

<span class="mw-page-title-main">Pezizomycotina</span> Subdivision of fungi

Pezizomycotina make up most of the Ascomycota fungi and include most lichenized fungi too. Pezizomycotina contains the filamentous ascomycetes and is a subdivision of the Ascomycota. It is more or less synonymous with the older taxon Euascomycota. These fungi reproduce by fission rather than budding and this subdivision includes almost all the ascus fungi that have fruiting bodies visible to the naked eye.

<span class="mw-page-title-main">Sordariomycetes</span> Class of fungi

Sordariomycetes is a class of fungi in the subdivision Pezizomycotina (Ascomycota). Sordariomycetes is from the Latin sordes (filth) because some species grow in animal feces, though growth habits vary widely across the class.

<span class="mw-page-title-main">Saccharomycotina</span> Subdivision of fungi

Saccharomycotina is a subdivision (subphylum) of the division (phylum) Ascomycota in the kingdom Fungi. It comprises most of the ascomycete yeasts. The members of Saccharomycotina reproduce by budding and they do not produce ascocarps.

<span class="mw-page-title-main">Helotiales</span> Order of fungi

Helotiales is an order of the class Leotiomycetes within the division Ascomycota. The taxonomy within Helotiales has been debated. It has expanded significantly as genomic techniques for taxonomical identification have become more commonly used. As of February 2020, the order is estimated to contain 30 accepted families, 519 genera, and 6266 species.

<span class="mw-page-title-main">Agaricomycetes</span> Class of fungi

The Agaricomycetes are a class of fungi in the division Basidiomycota. The taxon is roughly identical to that defined for the Homobasidiomycetes by Hibbett & Thorn, with the inclusion of Auriculariales and Sebacinales. It includes not only mushroom-forming fungi, but also most species placed in the deprecated taxa Gasteromycetes and Homobasidiomycetes. Within the subdivision Agaricomycotina, which already excludes the smut and rust fungi, the Agaricomycetes can be further defined by the exclusion of the classes Tremellomycetes and Dacrymycetes, which are generally considered to be jelly fungi. However, a few former "jelly fungi", such as Auricularia, are classified in the Agaricomycetes. According to a 2008 estimate, Agaricomycetes include 17 orders, 100 families, 1147 genera, and about 21000 species. Modern molecular phylogenetic analyses have been since used to help define several new orders in the Agaricomycetes: Amylocorticiales, Jaapiales, Stereopsidales, and Lepidostromatales.

<i>Sarcoscypha coccinea</i> Species of fungus

Sarcoscypha coccinea, commonly known as the scarlet elf cup, scarlet elf cap, or the scarlet cup, is a species of fungus in the family Sarcoscyphaceae of the order Pezizales. The fungus, widely distributed in the Northern Hemisphere, has been found in Africa, Asia, Europe, North and South America, and Australia. The type species of the genus Sarcoscypha, S. coccinea has been known by many names since its first appearance in the scientific literature in 1772. Phylogenetic analysis shows the species to be most closely related to other Sarcoscypha species that contain numerous small oil droplets in their spores, such as the North Atlantic island species S. macaronesica. Due to similar physical appearances and sometimes overlapping distributions, S. coccinea has often been confused with S. occidentalis, S. austriaca, and S. dudleyi.

<i>Gyromitra infula</i> Species of fungus

Gyromitra infula, commonly known as the hooded false morel or the elfin saddle, is a fungus in the family Helvellaceae. The dark reddish-brown caps of the fruit bodies develop a characteristic saddle-shape in maturity, and the ends of both saddle lobes are drawn out to sharp tips that project above the level of the fruit body. The stipe is white or flushed pale brown, smooth on the outside, but hollow with some chambers inside. It is found in the Northern Hemisphere, usually in the late summer and autumn, growing on rotting wood or on hard packed ground. G. infula is considered inedible as it contains the toxic compound gyromitrin which, when metabolized by the body, is converted into monomethylhydrazine, a component of some rocket fuels. The toxin may be removed by thorough cooking. Gyromitra fungi are included in the informal category "false morels".

<span class="mw-page-title-main">Discinaceae</span> Family of fungi

The Discinaceae are a family of ascomycete fungi, the best known members of which are the false morels of the genus Gyromitra. Originally erected by Erich Heinz Benedix in 1961, it was found to be a discrete clade in a molecular study of ribosomal DNA by mycologist Kerry O'Donnell in 1997. As of 2008, the family is thought to contain 5 genera and 58 species. As of 2022, the GBIF accepts Discina(Fr.) Fr., Gymnohydnotrya B.C.Zhang & Minter, 1989, GyromitraFr., 1849, HydnotryaBerk. & Broome and Maublancomyces. But calls NeogyromitraS.Imai and PseudorhizinaJacz. doubtful.

<i>Bisporella citrina</i> Species of fungus

Bisporella citrina, commonly known as yellow fairy cups or lemon discos, is a species of fungus in the family Helotiaceae. The fungus produces tiny yellow cups up to 3 mm in diameter, often without stalks, that fruit in groups or dense clusters on decaying deciduous wood that has lost its bark. The widely distributed species is found in North Africa, Asia, Europe, North America, and Central and South America. Found in late summer and autumn, the fungus is fairly common, but is easily overlooked owing to its small size. There are several similar species that can in most cases be distinguished by differences in color, morphology, or substrate. Microscopically, B. citrina can be distinguished from these lookalikes by its elliptical spores, which have a central partition, and an oil drop at each end.

<i>Geopyxis carbonaria</i> Species of fungus

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 cm across. They have a short, tapered stalk. Fruitbodies are commonly found on soil where brush has recently been burned, sometimes in great numbers. The fungus is distributed throughout many temperate regions of the Northern Hemisphere. It is found in Europe, Turkey, and North America. Although it is primarily a saprotrophic species, feeding on the decomposing organic matter remaining after a fire, it also forms biotrophic associations with the roots of Norway spruce.

<i>Scutellinia scutellata</i> Species of fungus

Scutellinia scutellata, commonly known as the eyelash cup, the Molly eye-winker, the scarlet elf cap, the eyelash fungus or the eyelash pixie cup, is a small saprophytic fungus of the genus Scutellinia. It is the type species of Scutellinia, as well as being the most common and widespread. The fruiting bodies are small red cups with distinct long, dark hairs or "eyelashes". These eyelashes are the most distinctive feature and are easily visible with a magnifying glass. The species is common in North America and Europe, and has been recorded on every continent. S. scutellata is found on rotting wood and in other damp habitats, typically growing in small groups, sometimes forming clusters. It is sometimes described as inedible, but its small size means it is not suitable for culinary use. Despite this, it is popular among mushroom hunters due to its unusual "eyelash" hairs, making it memorable and easy to identify.

<i>Chorioactis</i> Genus of fungi that contains the single species Chorioactis geaster

Chorioactis is a genus of fungi that contains the single species Chorioactis geaster. The mushroom is commonly known as the devil's cigar or the Texas star in the United States, while in Japan it is called kirinomitake (キリノミタケ). This extremely rare mushroom is notable for its unusual appearance and disjunct distribution; it is found only in select locales in Texas and Japan. The fruit body, which grows on the stumps or dead roots of cedar elms or dead oaks, somewhat resembles a dark brown or black cigar before it splits open radially into a starlike arrangement of four to seven leathery rays. The interior surface of the fruit body bears the spore-bearing tissue known as the hymenium, and is colored white to brown, depending on its age. The fruit body opening can be accompanied by a distinct hissing sound and the release of a smoky cloud of spores.

<i>Banksiamyces</i> Genus of fungi

Banksiamyces is a genus of fungi in the order Helotiales, with a tentative placement in the family Helotiaceae. The genus contains four species, which grow on the seed follicles of the dead infructescences or "cones" of various species of Banksia, a genus in the plant family Proteaceae endemic to Australia. Fruit bodies of the fungus appear as small, shallow dark cups on the follicles of the Banksia fruit. The edges of dry fruit bodies fold inwards, appearing like narrow slits. The first specimens of Banksiamyces, known then as Tympanis toomansis, were described in 1887. Specimens continued to be collected occasionally for almost 100 years before becoming examined more critically in the early 1980s, leading to the creation of a new genus to contain what was determined to be three distinct species, B. katerinae, B. macrocarpus, and B. toomansis. A fourth species, B. maccannii, was added in 1984.

<i>Ascocoryne sarcoides</i> Species of fungus

Ascocoryne sarcoides is a species of fungus in the family Helotiaceae. The species name is derived from the Greek sarkodes (fleshy). Formerly known as Coryne sarcoides, its taxonomical history has been complicated by the fact that it may adopt both sexual and asexual forms. Colloquially known as jelly drops or the purple jellydisc, this common fungus appears as a gelatinous mass of pinkish or purple-colored discs. Distributed widely in North America, Europe and Asia, A. sarcoides is a saprobic fungus and grows in clusters on the trunks and branches of a variety of dead woods. Field studies suggest that colonization by A. sarcoides of the heartwood of black spruce confers some resistance to further infection by rot-causing fungi. A. sarcoides contains the antibiotic compound ascocorynin, shown in the laboratory to inhibit the growth of several Gram-positive bacteria.

<i>Microstoma floccosum</i> Species of fungus

Microstoma floccosum is a species in the cup fungus family Sarcoscyphaceae. It is recognizable by its deep funnel-shaped, scarlet-colored fruit bodies bearing white hairs on the exterior. Found in the United States and Asia, it grows on partially buried sticks and twigs of oak trees.

<i>Pseudoplectania nigrella</i> Species of fungus

Pseudoplectania nigrella, commonly known as the ebony cup, the black false plectania, or the hairy black cup, is a species of fungi in the family Sarcosomataceae. The fruit bodies of this saprobic fungus are small blackish cups, typically up to 2 cm (0.8 in) broad, that grow in groups on soil, often amongst pine needles and short grass near coniferous trees. Pseudoplectania nigrella has a worldwide distribution, and has been found in North America, the Caribbean, Britain, Europe, India, Madagascar, New Zealand, and Japan. The fungus produces a unique chemical compound, plectasin, that has attracted research interest for its ability to inhibit the growth of the common human pathogenic bacterium Streptococcus pneumoniae.

<span class="mw-page-title-main">Pucciniomycetes</span> Class of fungi

Pucciniomycetes is a diverse class of fungi in the subphylum Pucciniomycotina of phylum Basidiomycota. The class contains 5 orders, 21 families, 190 genera, and approximately 8,016 species. It has been estimated that this class contains about one third of all teleomorphic basidiomycetes. Pucciniomycetes contains many economically important plant pathogenic fungal rusts; the order Pucciniales is the largest clade in this class, representing approximately 7,000 species.

<i>Sarcoscypha occidentalis</i> Species of fungus

Sarcoscypha occidentalis, commonly known as the stalked scarlet cup or the western scarlet cup, is a species of fungus in the family Sarcoscyphaceae of the Pezizales order. Fruit bodies have small, bright red cups up to 2 cm (0.8 in) wide atop a slender whitish stem that is between 1 and 3 cm long. A saprobic species, it is found growing on hardwood twigs, particularly those that are partially buried in moist and shaded humus-rich soil. The fungus is distributed in the continental United States east of the Rocky Mountains, Central America, the Caribbean, and Asia. It is distinguished from the related species S. coccinea and S. austriaca by differences in geographical distribution, fruiting season, and fruit body structure. Phylogenetic analysis has shown that it is most closely related to other Sarcoscypha species that contain large oil droplets in their spores. The species Molliardiomyces occidentalis is an imperfect form of the fungus that lacks a sexually reproductive stage in its life cycle.

<span class="mw-page-title-main">Plasmodiophore</span> Group of fungi-like protists

The plasmodiophores are a group of obligate endoparasitic protists belonging to the subphylum Endomyxa in Cercozoa. Taxonomically, they are united under a single family Plasmodiophoridae, order Plasmodiophorida, sister to the phagomyxids.

References

  1. Ekanayaka, A. H.; Ariyawansa, H. A.; Hyde, K. D.; Jones, E. B. G.; Daranagama, D. A.; Phillips, A. J. L.; Hongsanan, S.; Jayasiri, S. C.; Zhao, Qi (2017-11-01). "DISCOMYCETES: the apothecial representatives of the phylum Ascomycota". Fungal Diversity. 87 (1): 237–298. doi:10.1007/s13225-017-0389-x. ISSN   1878-9129.
  2. Pfister, Donald H.; Kimbrough, James W. (2001), McLaughlin, David J.; McLaughlin, Esther G.; Lemke, Paul A. (eds.), "Discomycetes", Systematics and Evolution: Part A, The Mycota, Berlin, Heidelberg: Springer, pp. 257–281, doi:10.1007/978-3-662-10376-0_12, ISBN   978-3-662-10376-0 , retrieved 2023-05-20