''Nidularia'' is a

genus Genus ( plural genera ) is a taxonomic rank used in the biological classification of living and fossil organisms as well as viruses. In the hierarchy of biological classification, genus comes above species and below family. In binomial nom ...

of nine species of

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 Family (from la, familia) is a group of people related either by consanguinity (by recognized birth) or affinity (by marriage or other relationship). The purpose of the family is to maintain the well-being of its members and of society. Idea ...

Agaricaceae The Agaricaceae are a family of basidiomycete fungi and include the genus ''Agaricus'', as well as basidiomycetes previously classified in the families Tulostomataceae, Lepiotaceae, and Lycoperdaceae. Taxonomy The family Agaricaceae was publishe ...

. Their

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 ...

resemble tiny egg-filled bird nests. The name comes from 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 ...

meaning ''nest''. The related genus ''

Mycocalia ''Mycocalia'' is a genus of fungi in the family Agaricaceae. Their fruit bodies resemble tiny egg-filled birds' nests. Species are usually found growing on herbaceous stems and other plant debris. Thus genus was circumscribed in 1961 by mycologi ...

'' was segregated from ''Nidularia'' in 1961 based on differences in the microscopic structure of the

peridium The peridium is the protective layer that encloses a mass of spores in fungi. This outer covering is a distinctive feature of gasteroid fungi. Description Depending on the species, the peridium may vary from being paper-thin to thick and rubbe ...

Taxonomy

The name ''Nidularia'' first appeared in the scientific literature in 1790 when Pierre Bulliard published ''N. vernicosa'' and ''N. laevis''. This name, however, was not validly published, as it predated the starting point for naming of

gasteroid fungi The gasteroid fungi are a group of fungi in the Basidiomycota. Species were formerly placed in the obsolete class Gasteromycetes Fr. (literally "stomach fungi"), or the equally obsolete order Gasteromycetales Rea, because they produce spores insi ...

(1801), and it lacked a generic description. Jean Bulliard gave a generic description in 1791 when he added ''N. striata''. ''N. striata'' and ''N. vernicosa'' are now placed in '' Cyathus'', while ''N. laevis'' is in ''

Crucibulum ''Crucibulum'' is a genus in the Nidulariaceae, a family of fungi whose fruiting bodies resemble tiny egg-filled bird's nests. Often called "splash cups", the fruiting bodies are adapted for spore dispersal by using the kinetic energy of fall ...

''. Bulliard's concept of ''Nidularia'' is synonymous with ''Cyathus''. ''Nidularia'' was again

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 ...

in 1817 by Swedish mycologist Elias Magnus Fries and his student Johann Nordholm. ''N. radicata'', ''N. confluens'', ''N. deformis'', and ''N. denudata''. ''Nidularia farcta'' was given 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 specime ...

; today both this taxon as well as ''N. radicata'' are thought to be synonymous with ''

Nidularia deformis ''Nidularia'' is a genus of nine species of fungi in the family Agaricaceae. Their fruit bodies resemble tiny egg-filled bird nests. The name comes from the Latin meaning ''nest''. The related genus '' Mycocalia'' was segregated from ''Nidular ...

''. ''N. denudata'' is now the type species of a related genus, ''

''. ''Granularia'', a genus erected by Albrecht Wilhelm Roth in 1791 to contain ''Granularia pisiformis'' (now ''Nidularia deformis''), is synonymous with ''Nidularia''. In 1961, J.T. Palmer separated ''Nidularia''

section Section, Sectioning or Sectioned may refer to: Arts, entertainment and media * Section (music), a complete, but not independent, musical idea * Section (typography), a subdivision, especially of a chapter, in books and documents ** Section sig ...

''Sorosia'' as a distinct genus, ''

'', combining ''Nidularia denudata'', ''N. castanea'', ''N. fusispora'', and ''N. reticulata'', and adding the new species ''

Mycocalia minutissima ''Mycocalia'' is a genus of fungi in the family Agaricaceae. Their fruit bodies resemble tiny egg-filled birds' nests. Species are usually found growing on herbaceous stems and other plant debris. Thus genus was circumscribed in 1961 by mycologi ...

''. In these species, the peridium comprises hyaline, branched, septate hyphae with clamp connections. In contrast, the peridium of ''Nidularia'' have tinted, rigid, spiny, aseptate hyphae that continue into long threads. The peridium of ''Mycocalia'' species is thin, white and short-lasting, while in ''Nidularia'' it is somewhat darker in color and more robust. Formerly classified in the family

Nidulariaceae The Nidulariaceae ('nidulus' - small nest) are a family of fungi in the order Agaricales. Commonly known as the bird's nest fungi, their fruiting bodies resemble tiny egg-filled birds' nests. As they are saprobic, feeding on decomposing organic ...

, along with other bird's nest fungi genera ('' Cyathus'', ''

'', '' Nidula'', and ''Mycocalia''), molecular phylogenetic analysis has shown that these fungi belong in the family

Species

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 nine species in the genus ''Nidularia'': *''

Nidularia bonaerensis ''Nidularia'' is a genus of nine species of fungi in the family Agaricaceae. Their fruit bodies resemble tiny egg-filled bird nests. The name comes from the Latin meaning ''nest''. The related genus '' Mycocalia'' was segregated from ''Nidular ...

'' Speg. 1880 *''

Nidularia campoi ''Nidularia'' is a genus of nine species of fungi in the family Agaricaceae. Their fruit bodies resemble tiny egg-filled bird nests. The name comes from the Latin meaning ''nest''. The related genus '' Mycocalia'' was segregated from ''Nidular ...

'' Speg. 1921 – South America *''

Nidularia castanea ''Nidularia'' is a genus of nine species of fungi in the family Agaricaceae. Their fruit bodies resemble tiny egg-filled bird nests. The name comes from the Latin meaning ''nest''. The related genus '' Mycocalia'' was segregated from ''Nidular ...

'' (Ellis & Everh. ex V.S.White) Sacc. & D.Sacc. 1905 *''

'' (Willd.) Fr. 1817 *''

Nidularia griseolazulina ''Nidularia'' is a genus of nine species of fungi in the family Agaricaceae. Their fruit bodies resemble tiny egg-filled bird nests. The name comes from the Latin meaning ''nest''. The related genus '' Mycocalia'' was segregated from ''Nidular ...

'' Lindsey & Gilb. 1975 – United States *''

Nidularia heribaudii ''Nidularia'' is a genus of nine species of fungi in the family Agaricaceae. Their fruit bodies resemble tiny egg-filled bird nests. The name comes from the Latin meaning ''nest''. The related genus '' Mycocalia'' was segregated from ''Nidular ...

'' Har. & Pat. 1904 *'' Nidularia heterospora'' Sosin 1960 *'' Nidularia microspora'' Velen. 1939 *'' Nidularia pulvinata'' (Schwein.) Fr. 1823

Description

Fruit bodies of species in this genus grow together in large groups, and have dimensions that are typically 0.5–6 mm in diameter by 0.5–3 mm tall. They may be somewhat irregular in shape, or have a well-formed cup that is thin and fragile. The

has a

tomentose Trichomes (); ) are fine outgrowths or appendages on plants, algae, lichens, and certain protists. They are of diverse structure and function. Examples are hairs, glandular hairs, scales, and papillae. A covering of any kind of hair on a pl ...

surface composed of irregular, spiny hyphae over a more compact wall that later breaks down to expose may brown peridioles within. Unlike other bird's-nest genera formerly classified in the family

, the peridioles of the ''Nidularia'' are not connected to the fruit body by a funicular cord, but rather lay clumped together in a gelatinous matrix. There may be over 100 peridioles embedded in the matrix. In ''Nidularia pulvinata'', they have an average size of 1.1 mm diameter by 0.5 mm thickness, with an average mass of 0.2 grams. This species has an estimated 7 million spores per peridiole. Spores are roughly elliptical in shape, hyaline, and usually with dimensions of 5–10.5 by 4–5.5 µm. ''

'', however, has larger spores than typical, measuring 14–18 by 10–14 µm.

Habitat and distribution

''Nidularia'' species are

saprophytic Saprotrophic nutrition or lysotrophic nutrition is a process of chemoheterotrophic extracellular digestion involved in the processing of decayed (dead or waste) organic matter. It occurs in saprotrophs, and is most often associated with fungi ( ...

, and grow on rotting wood. The thin, fragile peridium is ruptured by falling raindrops, after which the impact of additional raindrops spreads the internal matrix and dislodges the peridioles within. The splash mechanism of ''Nidularia pulvinata'' discharges peridioles horizontally at speeds ranging from 0.3 to 3.0 meters per second, with ejection distances averaging .

References

{{Taxonbar, from=Q1316092 Agaricaceae Agaricales genera

Taxonomy

Species

Description

Habitat and distribution

See also

References