''Skeletocutis'' is a

genus Genus ( plural genera ) is a taxonomic rank used in the biological classification of extant taxon, living and fossil organisms as well as Virus classification#ICTV classification, viruses. In the hierarchy of biological classification, genus com ...

of about 40 species of poroid

fungi A fungus ( : fungi or funguses) is any member of the group of eukaryotic organisms that includes microorganisms such as yeasts and molds, as well as the more familiar mushrooms. These organisms are classified as a kingdom, separately from ...

in the family

Polyporaceae The Polyporaceae are a family of poroid fungi belonging to the Basidiomycota. The flesh of their fruit bodies varies from soft (as in the case of the dryad's saddle illustrated) to very tough. Most members of this family have their hymeniu ...

. The genus has a

cosmopolitan distribution In biogeography, cosmopolitan distribution is the term for the range of a taxon that extends across all or most of the world in appropriate habitats. Such a taxon, usually a species, is said to exhibit cosmopolitanism or cosmopolitism. The ext ...

, although most species are found in the

Northern Hemisphere The Northern Hemisphere is the half of Earth that is north of the Equator. For other planets in the Solar System, north is defined as being in the same celestial hemisphere relative to the invariable plane of the solar system as Earth's Nort ...

. It causes a

white rot A wood-decay or xylophagous fungus is any species of fungus that digests moist wood, causing it to rot. Some species of wood-decay fungi attack dead wood, such as brown rot, and some, such as ''Armillaria'' (honey fungus), are parasitic and col ...

in a diverse array of woody substrates, and the

fruit bodies The sporocarp (also known as fruiting body, fruit body or fruitbody) of fungi is a multicellular structure on which spore-producing structures, such as basidia or asci, are borne. The fruitbody is part of the sexual phase of a fungal life cyc ...

grow as a crust on the surface of the decaying wood. Sometimes the edges of the crust are turned outward to form rudimentary bracket-like

caps Caps are flat headgear. Caps or CAPS may also refer to: Science and technology Computing * CESG Assisted Products Service, provided by the U.K. Government Communications Headquarters * Composite Application Platform Suite, by Java Caps, a Java ...

. ''Skeletocutis'' is primarily distinguished from similar genera of wood-rotting fungi by microscopic features, especially by the sausage-shaped to

ellipsoid An ellipsoid is a surface that may be obtained from a sphere by deforming it by means of directional scalings, or more generally, of an affine transformation. An ellipsoid is a quadric surface; that is, a surface that may be defined as the ...

spores, and spiny crystals covering certain

hypha A hypha (; ) is a long, branching, filamentous structure of a fungus, oomycete, or actinobacterium. In most fungi, hyphae are the main mode of vegetative growth, and are collectively called a mycelium. Structure A hypha consists of one or ...

e in the pore tissue. The genus was

circumscribed In geometry, the circumscribed circle or circumcircle of a polygon is a circle that passes through all the vertices of the polygon. The center of this circle is called the circumcenter and its radius is called the circumradius. Not every polyg ...

by Czech mycologists

František Kotlaba František Kotlaba (20 May 1927 in Vlastiboř – 11 June 2020 in Prague) was a Czech botanist and mycologist. Scientific career After his degree in Natural Sciences and Pedagogy at the Charles University in Prague, Kotlaba received a post at ...

and Zdenek Pouzar in 1958, with ''

Skeletocutis amorpha ''Skeletocutis amorpha'' is a species of poroid fungus in the family Polyporaceae, and the type species of the genus '' Skeletocutis''. Taxonomy The fungus was first described as new to science in 1815 by Elias Magnus Fries as ''Polyporus amo ...

'' as the

type species In zoological nomenclature, a type species (''species typica'') is the species name with which the name of a genus or subgenus is considered to be permanently taxonomically associated, i.e., the species that contains the biological type specimen ...

Description

Macroscopic characteristics

The

of ''Skeletocutis'' are annual to perennial. They are resupinate ( crust-like) to pileate (that is, with a

cap A cap is a flat headgear, usually with a visor. Caps have crowns that fit very close to the head. They made their first appearance as early as 3200 BC. Caps typically have a visor, or no brim at all. They are popular in casual and informal se ...

). When caps are present, their colour is typically white, cream-pink, or lilac, although the fruit body tends to discolour somewhat when dry. The pores are small and round to irregular in shape. Many ''Skeletocutis'' species have a zone of dense cartilaginous tissue above the tube layer; this zone has a gelatinous texture when fresh. 2011-09-06 Skeletocutis nivea 167182

Microscopic characteristics

The

l system is dimitic or trimitic. The generative hyphae have

clamps Clamp may refer to: Tools and devices *Brick clamp, an early method of baking bricks *Clamp (tool), a device or tool used to hold objects in a fixed relative position (many types listed) **C-clamp **C-clamp (stagecraft) **Riser clamp, a device u ...

, and are often encrusted with spiny crystals, particularly in the dissepiments (tissue that is found between the pores). The skeletal hyphae are

hyaline A hyaline substance is one with a glassy appearance. The word is derived from el, ὑάλινος, translit=hyálinos, lit=transparent, and el, ὕαλος, translit=hýalos, lit=crystal, glass, label=none. Histopathology Hyaline cartilage is ...

(translucent). Although typically only the generative hyphae of ''Skeletocutis'' fungi have incrustations, three species are reported to have apical incrustations on the skeletal hyphae: ''S. alutacea'' and ''S. percandida'', and ''S. novae-zelandiae.'' Ţura and colleagues suggest that the "taxonomy of these species is poorly worked-out."

Cystidia A cystidium (plural cystidia) is a relatively large cell found on the sporocarp of a basidiomycete (for example, on the surface of a mushroom gill), often between clusters of basidia. Since cystidia have highly varied and distinct shapes that ar ...

are absent in the

hymenium The hymenium is the tissue layer on the hymenophore of a fungal fruiting body where the cells develop into basidia or asci, which produce spores. In some species all of the cells of the hymenium develop into basidia or asci, while in others some ...

, but cystidioles are present in most species. The

spores In biology, a spore is a unit of sexual or asexual reproduction that may be adapted for dispersal and for survival, often for extended periods of time, in unfavourable conditions. Spores form part of the life cycles of many plants, algae, f ...

are smooth, hyaline, and have an allantoid (sausage-like) to cylindric to

shape. They do not have reaction with

Melzer's reagent Melzer's reagent (also known as Melzer's iodine reagent, Melzer's solution or informally as Melzer's) is a chemical reagent used by mycologists to assist with the identification of fungi, and by phytopathologists for fungi that are plant pathogens ...

. The

basidia A basidium () is a microscopic sporangium (a spore-producing structure) found on the hymenophore of fruiting bodies of basidiomycete fungi which are also called tertiary mycelium, developed from secondary mycelium. Tertiary mycelium is highly-c ...

(spore-bearing cells) are club shaped to barrel shaped and four spored, measuring 8–15 by 4–5

μm The micrometre ( international spelling as used by the International Bureau of Weights and Measures; SI symbol: μm) or micrometer (American spelling), also commonly known as a micron, is a unit of length in the International System of Unit ...

. Although the majority of ''Skeletocutis'' species have thin-walled spores, six species have spores with thick walls: ''S. alutacea'', ''S. bambusicola'', ''S. borealis'', ''S. krawtzewii'', ''S. percandida'', and ''S. perennis''.

Ecology, habitat, and distribution

''Skeletocutis'' causes a

in a diverse array of woody substrates. Although the majority of species are found growing on the dead wood of various

conifer Conifers are a group of conifer cone, cone-bearing Spermatophyte, seed plants, a subset of gymnosperms. Scientifically, they make up the phylum, division Pinophyta (), also known as Coniferophyta () or Coniferae. The division contains a single ...

and

hardwood Hardwood is wood from dicot trees. These are usually found in broad-leaved temperate and tropical forests. In temperate and boreal latitudes they are mostly deciduous, but in tropics and subtropics mostly evergreen. Hardwood (which comes from ...

genera, some are known to grow on the dead fruit bodies of other polypores. For example, '' S. brevispora'' feeds on '' Phellinidium ferrugineofuscum'', while '' S. chrysella'' eats '' Phellinus chrysoloma''. The tropical Chinese species '' S. bambusicola'' grows on dead

bamboo Bamboos are a diverse group of evergreen perennial flowering plants making up the subfamily Bambusoideae of the grass family Poaceae. Giant bamboos are the largest members of the grass family. The origin of the word "bamboo" is uncertain, bu ...

. '' S. percandida'' has been reported growing on exotic bamboos cultivated in France. In the

Daxing'anling Daxing'anling Prefecture (), also known as Da Hinggan Ling Prefecture, is the northernmost Chinese prefecture-level division, located in northwestern Heilongjiang Province. It covers and has a population of 520,000, as of 2004. It is named after ...

forest areas of northeastern China, '' S. ochroalba'' has been found growing on charred wood after forest fires, and may be a

pioneer species Pioneer species are hardy species that are the first to colonize barren environments or previously biodiverse steady-state ecosystems that have been disrupted, such as by wildfire. Pioneer flora Some lichens grow on rocks without soil, so m ...

for this substrate. In the southern part of the

Russian Far East The Russian Far East (russian: Дальний Восток России, r=Dal'niy Vostok Rossii, p=ˈdalʲnʲɪj vɐˈstok rɐˈsʲiɪ) is a region in Northeast Asia. It is the easternmost part of Russia and the Asian continent; and is admini ...

, ''S. odora'' is common in

aspen Aspen is a common name for certain tree species; some, but not all, are classified by botanists in the section ''Populus'', of the ''Populus'' genus. Species These species are called aspens: *'' Populus adenopoda'' – Chinese aspen (China ...

forests. It is often found fruiting in association with other fungi, including '' Fomitopsis rosea'', '' Crustoderma dryinum'', ''

Leptoporus mollis ''Leptoporus'' is a genus of polypore fungi. The type species, '' Leptoporus mollis'', is widespread throughout north temperate areas. The generic name is derived from the Ancient Greek words ("thin") and ("pore"). Although traditionally class ...

'', and '' Phlebia centrifuga''. ''S. odora'' favours large logs more than in diameter. This species is part of the community of fungal successors of decaying wood. A Finnish study found that it fruited most frequently in the third stage (medium decay) of wood decomposition of

Norway spruce ''Picea abies'', the Norway spruce or European spruce, is a species of spruce native to Northern, Central and Eastern Europe. It has branchlets that typically hang downwards, and the largest cones of any spruce, 9–17 cm long. It is very close ...

(''Picea abies''). In this stage, which occurs about 20–40 years after the death of the plant, the decay penetrates more than into the wood, while the core is still hard. ''S. carneogrisea'' and ''S. kuehneri'' are successor species that grow on the dead fruit bodies of the polypores '' Trichaptum abietinum'' and '' T. fuscoviolaceum''. ''Skeletocutis'' has a

, although most species are found in the

Leif Ryvarden Leif Randulff Ryvarden (born 9 August 1935) is a Norwegian mycologist. Early life and education Leif Ryvarden was born in Bergen as a son of Einar Norberg Johansen (1900–1959) and Hjørdis Randulff (1912–1975). He finished his secondary edu ...

considered 22 species to occur in Europe in his 2014 work ''Poroid Fungi of Europe''. Viacheslav Spirin reported 13 species in Russia in 2005. Twenty-two species have been recorded in China.

Conservation

In Europe, ''Skeletocutis odora'' appears on the national Red Lists of threatened fungi in 5 countries and is one of 33 species of fungi proposed for international conservation under the Bern Convention. Its natural habitat is threatened by

deforestation Deforestation or forest clearance is the removal of a forest or stand of trees from land that is then converted to non-forest use. Deforestation can involve conversion of forest land to farms, ranches, or urban use. The most concentrated d ...

and loss of thick fallen logs typical of

old-growth forest An old-growth forestalso termed primary forest, virgin forest, late seral forest, primeval forest, or first-growth forestis a forest that has attained great age without significant disturbance, and thereby exhibits unique ecological featur ...

s. In

Estonia Estonia, formally the Republic of Estonia, is a country by the Baltic Sea in Northern Europe. It is bordered to the north by the Gulf of Finland across from Finland, to the west by the sea across from Sweden, to the south by Latvia, a ...

, ''S. odora'' and ''S. stellae'' are used as

indicator species A bioindicator is any species (an indicator species) or group of species whose function, population, or status can reveal the qualitative status of the environment. The most common indicator species are animals. For example, copepods and other sma ...

to help assess whether forest stands should be

protected Protection is any measure taken to guard a thing against damage caused by outside forces. Protection can be provided to physical objects, including organisms, to systems, and to intangible things like civil and political rights. Although th ...

. They are associated with old-growth forest areas that have been minimally impacted by humans. In contrast, '' S. lilacina'' is found exclusively in selectively logged forests, while '' S. stellae'' inhabits both types of forest. The Argentinian species ''S. nothofagi'', known only from

Tierra del Fuego Tierra del Fuego (, ; Spanish for "Land of the Fire", rarely also Fireland in English) is an archipelago off the southernmost tip of the South American mainland, across the Strait of Magellan. The archipelago consists of the main island, Isla G ...

, has been proposed for inclusion in the

IUCN Red List of Threatened Species The International Union for Conservation of Nature (IUCN) Red List of Threatened Species, also known as the IUCN Red List or Red Data Book, founded in 1964, is the world's most comprehensive inventory of the global conservation status of biologi ...

due to its highly restricted distribution and rare occurrence.

Taxonomy

The genus was

by Czech mycologists František Kotlába and

Zdeněk Pouzar Zdeněk Pouzar (born 13 April 1932) is a Czech mycologist. Along with František Kotlaba, he published several works about the taxonomy of polypore, corticioid, and gilled fungi. Pouzar is a noted expert on stromatic pyrenomycetes. Until 2012, he ...

in 1958 with ''

'' (originally described as ''Polyporus amorphus'' by

Elias Magnus Fries Elias Magnus Fries (15 August 1794 – 8 February 1878) was a Swedish mycologist and botanist. Career Fries was born at Femsjö (Hylte Municipality), Småland, the son of the pastor there. He attended school in Växjö. He acquired ...

in 1815) as the type and only species. The generic name ''Skeletocutis'' is derived from the

Ancient Greek Ancient Greek includes the forms of the Greek language used in ancient Greece and the ancient world from around 1500 BC to 300 BC. It is often roughly divided into the following periods: Mycenaean Greek (), Dark Ages (), the Archaic peri ...

word (''skeleto'', "dried up") and the

Latin Latin (, or , ) is a classical language belonging to the Italic branch of the Indo-European languages. Latin was originally a dialect spoken in the lower Tiber area (then known as Latium) around present-day Rome, but through the power of the ...

word ''cutis'' ("skin"). Other genera that feature encrustations in the hyphae of the dissepiment edges include ''

Tyromyces ''Tyromyces'' is a genus of poroid fungi in the family Polyporaceae. It was circumscribed by mycologist Petter Karsten in 1881. The type species is the widely distributed '' Tyromyces chioneus'', commonly known as the white cheese polypore. The ...

'' and ''

Piloporia ''Piloporia'' is a genus of two species of poroid fungi in the family Polyporaceae. The genus was circumscribed by Finnish mycologist Tuomo Niemelä in 1982, with '' P. sajanensis'' as the type species. The Indian species '' P. indica'' ...

''.

Molecular A molecule is a group of two or more atoms held together by attractive forces known as chemical bonds; depending on context, the term may or may not include ions which satisfy this criterion. In quantum physics, organic chemistry, and bioche ...

analyses has shown the close

phylogenetic In biology, phylogenetics (; from Greek φυλή/ φῦλον [] "tribe, clan, race", and wikt:γενετικός, γενετικός [] "origin, source, birth") is the study of the evolutionary history and relationships among or within groups o ...

relationship between ''Skeletocutis'' and ''Tyromyces''. These two genera group together in the tyromyces

clade A clade (), also known as a monophyletic group or natural group, is a group of organisms that are monophyletic – that is, composed of a common ancestor and all its lineal descendants – on a phylogenetic tree. Rather than the English term, ...

, on a branch lying outside of the core polyporoid clade, or in the "residual polypore clade" of Tomšovský and colleagues. Sidera lenis 197089

Two species formerly placed in ''Skeletocutis'', ''S. lenis'' (P.Karst.) Niemelä and ''S. vulgaris'' (Fr.) Niemelä & Y.C.Dai, were transferred to the new genus '' Sidera'' based on molecular analysis. Although ''Sidera'' is placed in a different order (

Hymenochaetales The Hymenochaetales are an order of fungi in the class Agaricomycetes. The order in its current sense is based on molecular research and not on any unifying morphological characteristics. According to one 2008 estimate, the Hymenochaetales con ...

), it shares many characteristic features with ''Skeletocutis'', including whitish resupinate basidiocarps (in many species) with small pores, and narrow skeletal hyphae. In contrast with ''Skeletocutis'', however, the hyphae in ''Sidera'' comprising the dissepiment edge are smooth or covered with only a few

facet Facets () are flat faces on geometric shapes. The organization of naturally occurring facets was key to early developments in crystallography, since they reflect the underlying symmetry of the crystal structure. Gemstones commonly have facets cut ...

ed crystal clusters. In 1963, Polish mycologist Stanislaw Domanski circumscribed the genus ''Incrustoporia'' (typified by ''Poria stellae'') to contain several polypores featuring encrusted hyphae at the dissepiments. In 1969, John Ericksson and Åke Strid added ''Polyporus semipileatus'' Peck to the genus. The taxonomic placement of this fungus had long before confused mycologists, who had given it a variety of scientific names. Three years before, Pouzar created the genus ''Leptotrimitus'' to contain this fungus, as he was not satisfied with other possible generic placements. The main distinguishing feature of ''Leptotrimitus'' was the presence of trimitic hyphae. In 1971,

Marinus Anton Donk Marinus Anton Donk (14 August 1908 – 2 September 1972) was a Dutch mycologist. He specialized in the taxonomy and nomenclature of mushrooms. Rolf Singer wrote in his obituary that he was "one of the most outstanding figures of contemporary myc ...

reunited ''Incrustoporia'' and ''Leptotrimitus'', as he did not believe that the trimitic character alone was a sufficient criterion for delineating a new genus when so many other characters were identical. Jean Keller studied the

ultrastructure Ultrastructure (or ultra-structure) is the architecture of cells and biomaterials that is visible at higher magnifications than found on a standard optical light microscope. This traditionally meant the resolution and magnification range of a co ...

of the encrusted hyphae of ''Incrustoporia'' species using

electron microscopy An electron microscope is a microscope that uses a beam of accelerated electrons as a source of illumination. As the wavelength of an electron can be up to 100,000 times shorter than that of visible light photons, electron microscopes have a hi ...

. He determined that, with the exception of ''I. carneola'', the crystallizations were similar in all instances. The crystals of ''I. carneola'' were in the shape of small regular

parallelepiped In geometry, a parallelepiped is a three-dimensional figure formed by six parallelograms (the term ''rhomboid'' is also sometimes used with this meaning). By analogy, it relates to a parallelogram just as a cube relates to a square. In Euclidea ...

s—clearly distinct from the spiny crystal structures characteristic of the rest of ''Incrustoporia''. Because ''Skeletocutis'' was published earlier, it had priority over the generic name ''Incrustoporia'', and so Keller transferred the remaining six species to ''Skeletocutis'' in 1989: ''S. alutacea'', ''S. nivea'', ''S. percandida'', ''S. stellae'', ''S. subincarnata'', and ''S. tschulymica''. ''Incrustoporia carneola'' was transferred to '' Junghuhnia'' as '' J. carneola''. The inclusion of several monomitic species by Alix David in 1982 (''S. azorica'', ''S. jelicii'', ''S. portcrosensis'' and ''S. subsphaerospora'') was controversial, as mycologists

and

Robert Lee Gilbertson Robert Lee Gilbertson (January 15, 1925 – October 26, 2011) was a distinguished American mycology, mycologist and educator. He was a faculty member at University of Arizona for 26 years until his retirement from teaching in 1995; he was a Prof ...

(1993, 1994) and Annarosa Bernicchia (2005) transferred them to or accepted them in '' Ceriporiopsis''. Later molecular work demonstrated that two of these monomitic species, ''S. azorica'' and ''S. subsphaerospora'', are phylogenetically much closer to the Skeletocutis-Tyromyces

sensu stricto ''Sensu'' is a Latin word meaning "in the sense of". It is used in a number of fields including biology, geology, linguistics, semiotics, and law. Commonly it refers to how strictly or loosely an expression is used in describing any particular co ...

group of species than to ''Ceriporiopsis'', and the current concept of ''Skeletocutis'' includes monomitic species. ''S. jelicii'' and ''S. portcrosensis'' remain in ''Ceriporiopsis''.

Species

A 2008 estimate placed around 30 species in the widely distributed genus. , the nomenclatural database

Index Fungorum ''Index Fungorum'' is an international project to index all formal names ( scientific names) in the fungus kingdom. the project is based at the Royal Botanic Gardens, Kew, one of three partners along with Landcare Research and the Institute of M ...

accepts 41 species. *'' Skeletocutis africana'' Ryvarden & P.Roberts (2006) – Cameroon *'' Skeletocutis albocremea'' A.David (1982) – Russia *'' Skeletocutis alutacea'' (J.Lowe) Jean Keller (1979) – United States, Europe *''

'' (Fr.) Kotl. & Pouzar (1958) – China; Europe; Africa; Australia 2011-12-17 Skeletocutis amorpha 190007

*'' Skeletocutis azorica'' (D.A.Reid) Jülich (1982) – Portugal *'' Skeletocutis bambusicola'' L.W.Zhou & W.M.Qin (2012) – China *'' Skeletocutis bicolor'' (Lloyd) Ryvarden (1992) – Singapore *'' Skeletocutis biguttulata'' (Romell) Niemelä (1998) – Russia *'' Skeletocutis borealis'' Niemelä (1998) – Europe *'' Skeletocutis brevispora'' Niemelä (1998) – China; Europe *'' Skeletocutis brunneomarginata'' Ryvarden (2009) – United States *'' Skeletocutis carneogrisea'' A.David (1982) – China; Europe; South America 2012-02-24 Skeletocutis carneogrisea A

*'' Skeletocutis chrysella'' Niemelä (1998) – Europe *'' Skeletocutis diluta'' (Rajchenb.) A.David & Rajchenb. (1992) –

pantropical A pantropical ("all tropics") distribution is one which covers Tropics, tropical regions of both hemispheres. Examples of species include caecilians, modern sirenians and the plant genera ''Acacia'' and ''Bacopa''. ''Neotropical'' is a zoogeogra ...

*'' Skeletocutis falsipileata'' (Corner) T.Hatt. (2002) – Asia *'' Skeletocutis fimbriata'' Juan Li & Y.C.Dai (2008) – China *'' Skeletocutis friata'' Niemelä & Saaren. (2001) – Europe *'' Skeletocutis inflata'' B.K.Cui (2013) – southern China *'' Skeletocutis krawtzewii'' (Pilát) Kotl. & Pouzar (1991) – China; Siberia *'' Skeletocutis kuehneri'' A.David (1982) – Great Britain; Netherlands; Russia Skeletocutis kuehneri (16070349525)

*'' Skeletocutis lilacina'' A.David & Jean Keller (1984) – China; Europe; North America *'' Skeletocutis luteolus'' B.K.Cui & Y.C.Dai (2008) – China *'' Skeletocutis microcarpa'' Ryvarden & Iturr. (2003) – Venezuela *'' Skeletocutis mopanshanensis'' (2017) – China *'' Skeletocutis nivea'' (Jungh.) Jean Keller (1979) – Africa, Europe, Australia, New Zealand; China South America *'' Skeletocutis niveicolor'' (Murrill) Ryvarden (1985) – North America *'' Skeletocutis nothofagi'' Rajchenb. (1979) – Argentina *'' Skeletocutis novae-zelandiae'' (G.Cunn.) P.K.Buchanan & Ryvarden (1988) – New Zealand *'' Skeletocutis ochroalba'' Niemelä (1985) – Canada; China; Central and Northern Europe *'' Skeletocutis odora'' (Sacc.) Ginns (1984) – Slovakia; Russia *'' Skeletocutis papyracea'' A.David (1982) – Europe *'' Skeletocutis percandida'' (Malençon & Bertault) Jean Keller (1979) – Africa (Zimbabwe); Asia (China; Israel);

Mediterranean Europe Southern Europe is the southern region of Europe. It is also known as Mediterranean Europe, as its geography is essentially marked by the Mediterranean Sea. Definitions of Southern Europe include some or all of these countries and regions: Alba ...

*'' Skeletocutis perennis'' Ryvarden (1986) – China *'' Skeletocutis polyporicola'' Ryvarden & Iturr. (2011) – Venezuela *'' Skeletocutis pseudo-odora'' L.F.Fan & Jing Si (2017) – China *'' Skeletocutis roseola'' (Rick ex Theiss.) Rajchenb. (1987) – Brazil *'' Skeletocutis stellae'' (Pilát) Jean Keller (1979) – China; Argentina; Europe Skeletocutis stellae (9209027243)

*'' Skeletocutis stramentica'' (G.Cunn.) Rajchenb. (1995) – New Zealand *'' Skeletocutis subincarnata'' (Peck) Jean Keller (1979) – Europe; Canada *'' Skeletocutis subodora'' Vlasák & Ryvarden (2012) – United States *'' Skeletocutis substellae'' Y.C.Dai (2011) – China *'' Skeletocutis subvulgaris'' Y.C.Dai (1998) – China *'' Skeletocutis tschulymica'' (Pilát) Jean Keller (1979) – Europe *'' Skeletocutis uralensis'' (Pilát) Kotl. & Pouzar (1990) – Europe *'' Skeletocutis yunnanensis'' – China The

taxon In biology, a taxon (back-formation from ''taxonomy''; plural taxa) is a group of one or more populations of an organism or organisms seen by taxonomists to form a unit. Although neither is required, a taxon is usually known by a particular nam ...

''S. australis'', described from South America by Mario Rajchenberg in 1987, was later placed by him in

synonymy A synonym is a word, morpheme, or phrase that means exactly or nearly the same as another word, morpheme, or phrase in a given language. For example, in the English language, the words ''begin'', ''start'', ''commence'', and ''initiate'' are all ...

with the species ''S. stramentica'', originally described from New Zealand. Index Fungorum shows 66 taxa associated with the generic name ''Skeletocutis''. Several species once placed in this genus have since been moved to other genera: *''Skeletocutis basifusca'' (Corner) T.Hatt. (2001) = '' Trichaptum basifuscum'' Corner (1987) *''Skeletocutis hymeniicola'' (Murrill) Niemelä (1998) = '' Poria hymeniicola'' Murrill (1920) *''Skeletocutis jelicii'' Tortič & A.David (1981) = ''

Ceriporiopsis jelicii ''Ceriporiopsis jelicii'' is a species of fungus A fungus ( : fungi or funguses) is any member of the group of eukaryotic organisms that includes microorganisms such as yeasts and molds, as well as the more familiar mushrooms. These organ ...

'' (Tortič & A.David) Ryvarden & Gilb. (1993) *''Skeletocutis portcrosensis'' A.David (1982) = ''

Ceriporiopsis portcrosensis ''Ceriporiopsis'' is a genus of fungi in the family Phanerochaetaceae. The genus is widely distributed, and, according to a 2008 estimate, contains about 25 species. ''Ceriporiopsis'' was circumscription (taxonomy), circumscribed in 1963 by Poli ...

'' (A.David) Ryvarden & Gilb. (1993) *''Skeletocutis sensitiva'' (Lloyd) Ryvarden (1992) = '' Fomitopsis sensitiva'' (Lloyd) R.Sasaki (1954)

References

{{Taxonbar, from=Q7112970 Polyporales genera Taxa described in 1958