The cyphelloid fungi are a polyphyletic group of fungi in the Basidiomycota that have disc-, tube-, or cup-shaped basidiocarps (fruit bodies), resembling species of discomycetes (or "cup fungi") in the Ascomycota. They were originally referred to the genus Cyphella ("cyphelloid" means Cyphella-like) and subsequently to the family Cyphellaceae, but are now known to be much more diverse and are spread through several different genera and families. Since they are often studied as a group, it is convenient to call them by the informal (non-taxonomic) name of "cyphelloid fungi". Better known cyphelloid genera include Calyptella, with stalked, cup- or bell-like fruit bodies; Lachnella, with conspicuous, hairy-margined, disc-like fruit bodies; Flagelloscypha with smaller, but equally hairy, cup-like fruit bodies; Henningsomyces with tube-like fruit bodies; and Merismodes with clustered, hairy, cup-like fruit bodies.
The genus Cyphella was original described by Fries in 1822. Subsequent authors gradually added over 300 species to the genus. [1] By the close of the nineteenth century, however, it was already clear that Cyphella contained a miscellany of species — some, for example, having hyaline spores, whilst others had brown spores. Segregate genera were accordingly proposed to accommodate cyphelloid fungi that were not closely related to the type, and this process continued throughout the twentieth century. The group was covered in a monograph by William Bridge Cooke in 1961, [2] with additional papers by Donk, [3] [4] [5] Reid, [6] and Agerer. [7] [8] As a result of these critical revisions, only one species is still accepted in Cyphella, namely the type Cyphella digitalis . [9]
The family name Cyphellaceae was used to keep most (but not all) of these segregate genera together. It became equally clear, however, that it too was heterogeneous, Donk noting that it was "nothing but a handy bin from which part of the contents has already been taken out and disposed of by scattering it over various groups." [5]
DNA sequencing confirms this diversity, showing that cyphelloid fungi have independently evolved at least eight times within the Basidiomycota. [9] Genera are currently placed in the Cyphellaceae (in a restricted sense), Inocybaceae, Marasmiaceae, Niaceae, and Tricholomataceae. [1] It had previously been suggested that most cyphelloid fungi were related to gilled agarics (mushrooms and toadstools) and they have sometimes been referred to as "reduced agarics". DNA sequencing shows that this is indeed true for many of the genera sampled, almost all being placed within the order Agaricales. [9]
Fruit bodies of the cyphelloid fungi are typically small (under 10 mm across), disc-shaped, cup-shaped, or tube-like, with or without a stem. The spore-bearing surface is smooth and formed on the surface of the disc, or inside the cup or tube. The sterile outer surface is smooth or often hairy, the hairs sometimes forming a conspicuous margin to discs. Fruit bodies typically occur in troops or swarms, sometimes packed closely together.
Better known cyphelloid genera include Calyptella , with stalked, cup- or bell-like fruit bodies; Lachnella , with conspicuous, hairy-margined, disc-like fruit bodies; Flagelloscypha with smaller, but equally hairy, cup-like fruit bodies; Henningsomyces with tube-like fruit bodies; and Merismodes with clustered, hairy, cup-like fruit bodies.
Most cyphelloid species are wood-rotting fungi, growing on dead attached branches, on old bark of living trees, or on fallen wood. Some are found on dead or decaying herbaceous stems or on ferns. Two species are marine fungi, the salt-tolerant Calathella mangrovei and Halocyphina villosa occurring on mangroves. [10]
As a group, the cyphelloid fungi are cosmopolitan, though (as with most fungi) better studied and better known in north temperate regions.
The Cantharellaceae are a family of fungi in the order Cantharellales. The family contains the chanterelles and related species, a group of fungi that superficially resemble agarics but have smooth, wrinkled, or gill-like hymenophores. Species in the family are ectomycorrhizal, forming a mutually beneficial relationship with the roots of trees and other plants. Many of the Cantharellaceae, including the chanterelle, the Pacific golden chanterelle, the horn of plenty, and the trumpet chanterelle, are not only edible, but are collected and marketed internationally on a commercial scale.
A basidiospore is a reproductive spore produced by basidiomycete fungi, a grouping that includes mushrooms, shelf fungi, rusts, and smuts. Basidiospores typically each contain one haploid nucleus that is the product of meiosis, and they are produced by specialized fungal cells called basidia. Typically, four basidiospores develop on appendages from each basidium, of which two are of one strain and the other two of its opposite strain. In gills under a cap of one common species, there exist millions of basidia. Some gilled mushrooms in the order Agaricales have the ability to release billions of spores. The puffball fungus Calvatia gigantea has been calculated to produce about five trillion basidiospores. Most basidiospores are forcibly discharged, and are thus considered ballistospores. These spores serve as the main air dispersal units for the fungi. The spores are released during periods of high humidity and generally have a night-time or pre-dawn peak concentration in the atmosphere.
The Hygrophoraceae are a family of fungi in the order Agaricales. Originally conceived as containing white-spored, thick-gilled agarics, including Hygrophorus and Hygrocybe species, DNA evidence has extended the limits of the family, so it now contains not only agarics, but also basidiolichens and corticioid fungi. Species are thus diverse and are variously ectomycorrhizal, lichenized, associated with mosses, or saprotrophic. The family contains 34 genera and over 1000 species. None is of any great economic importance, though fruit bodies of some Hygrocybe and Hygrophorus species are considered edible and may be collected for sale in local markets.
Entoloma is a genus of fungi in the order Agaricales. Called pinkgills in English, basidiocarps are typically agaricoid, though a minority are gasteroid. All have salmon-pink basidiospores which colour the gills at maturity and are angular (polyhedral) under a microscope. The genus is large, with almost 2000 species worldwide. Most species are saprotrophic, but some are ectomycorrhizal, and a few are parasitic on other fungi. The type, Entoloma sinuatum, is one of several Entoloma species that are poisonous, typically causing mild to severe gastrointestinal illness.
The Hydnaceae are a family of fungi in the order Cantharellales. Originally the family encompassed all species of fungi that produced basidiocarps having a hymenium consisting of slender, downward-hanging tapering extensions referred to as "spines" or "teeth", whether they were related or not. This artificial but often useful grouping is now more generally called the hydnoid or tooth fungi. In the strict, modern sense, the Hydnaceae are limited to the genus Hydnum and related genera, with basidiocarps having a toothed or poroid hymenium. Species in the family are ectomycorrhizal, forming a mutually beneficial relationship with the roots of trees and other plants. Hydnum repandum is an edible species, commercially collected in some countries and often marketed under the French name pied de mouton.
The Auriculariales are an order of fungi in the class Agaricomycetes. Species within the order were formerly referred to the "heterobasidiomycetes" or "jelly fungi", since many have gelatinous basidiocarps that produce spores on septate basidia. Around 200 species are known worldwide, placed in six or more families, though the status of these families is currently uncertain. All species in the Auriculariales are believed to be saprotrophic, most growing on dead wood. Fruit bodies of several Auricularia species are cultivated for food on a commercial scale, especially in China.
Limnoperdon is a fungal genus in the monotypic family Limnoperdaceae. The genus is also monotypic, as it contains a single species, the aquatic fungus Limnoperdon incarnatum. The species, described as new to science in 1976, produces fruit bodies that lack specialized structures such as a stem, cap and gills common in mushrooms. Rather, the fruit bodies—described as aquatic or floating puffballs—are small balls of loosely interwoven hyphae. The balls float on the surface of the water above submerged twigs. Experimental observations on the development of the fruit body, based on the growth on the fungus in pure culture, suggest that a thin strand of mycelium tethers the ball above water while it matures. Fruit bodies start out as a tuft of hyphae, then become cup-shaped, and eventually enclose around a single chamber that contains reddish spores. Initially discovered in a marsh in the state of Washington, the fungus has since been collected in Japan, South Africa, and Canada.
Calathella is a genus of fungi in the mushroom family Marasmiaceae. According to the Dictionary of the Fungi, the genus contains nine species found in Europe and North America. The genus was circumscribed by the English mycologist Derek Reid in 1964.
Poronidulus is a fungal genus in the family Polyporaceae. It is a monotypic genus, and contains the single polypore species Poronidulus conchifer, found in North America. The genus was circumscribed by American mycologist William Alphonso Murrill in 1904. The generic name, which combines the Ancient Greek word πόρος ("pore") with the Latin word nidulus, refers to the superficial similarity of the cup-shaped Poronidulus fruit bodies with those of the genus Nidularia. A second species, Poronidulus bivalvis, found in Bogor, was placed in the genus by Franz Xaver Rudolf von Höhnel in 1914. The actual identity of this taxon, however, is uncertain.
Amaurodon is a genus of fungi in the family Thelephoraceae. Most species in the genus have resupinate and corticioid fruit bodies that grow on rotting wood. The hymenophore may have pores, teeth, or be smooth, and is typically blue to green in color.
Episphaeria is a genus of fungus in the Agaricales. The genus is monotypic, and contains the single rare species Episphaeria fraxinicola, found in Europe. Its familial position is not known with certainty. The tiny fruit bodies of the fungus resemble minute, white cups that grow scattered or in groups on the bark of ash trees.
The clavarioid fungi are a group of fungi in the Basidiomycota typically having erect, simple or branched basidiocarps that are formed on the ground, on decaying vegetation, or on dead wood. They are colloquially called club fungi and coral fungi.
The gasteroid fungi are a group of fungi in the Basidiomycota. Species were formerly placed in the obsolete class Gasteromycetes Fr., or the equally obsolete order Gasteromycetales Rea, because they produce spores inside their basidiocarps rather than on an outer surface. However, the class is polyphyletic, as such species—which include puffballs, earthballs, earthstars, stinkhorns, bird's nest fungi, and false truffles—are not closely related to each other. Because they are often studied as a group, it has been convenient to retain the informal (non-taxonomic) name of "gasteroid fungi".
The hydnoid fungi are a group of fungi in the Basidiomycota with basidiocarps producing spores on pendant, tooth-like or spine-like projections. They are colloquially called tooth fungi. Originally such fungi were referred to the genus Hydnum, but it is now known that not all hydnoid species are closely related.
The Punctulariaceae are a family of fungi in the order Corticiales. The family in its current sense is based on molecular research and contains just three genera of corticioid fungi.
Chromocyphella muscicola is a species of fungus in the family Hymenogastraceae. Basidiocarps are cyphelloid, cup-shaped, about 4 mm across, with an upper surface covered with fine hairs and a smooth underside.