Trichoglossum hirsutum

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Trichoglossum hirsutum
Gemeine Haarzunge Trichoglossum hirsutum.JPG
Trichoglossum hirsutum, Germany
Scientific classification Red Pencil Icon.png
Kingdom: Fungi
Division: Ascomycota
Class: Geoglossomycetes
Order: Geoglossales
Family: Geoglossaceae
Genus: Trichoglossum
Species:
T. hirsutum
Binomial name
Trichoglossum hirsutum
(Pers.) Boud. (1907)
Synonyms
  • Geoglossum hirsutumPers. (1794)

Trichoglossum hirsutum is a species of fungus in the family Geoglossaceae. In the UK, it has been given the recommended English name of hairy earthtongue. [1] In North America it is known variously as velvety earth tongue, shaggy earth tongue, or black earth tongue. DNA evidence suggests the hairy earthtongue may be a species complex.

Contents

Taxonomy

The species was first described by mycologist Christian Hendrik Persoon in 1794 as Geoglossum hirsutum. In 1907 Jean Louis Émile Boudier transferred the species to his new genus Trichoglossum , of which it is the type. Initial molecular research, based on cladistic analysis of DNA sequences, indicates that Trichoglossum hirsutum sensu lato comprises at least three separate taxa in Europe and North America, though these may not be morphologically distinguishable. At least one of these cryptic species occurs in both continents. [2]

Description

Ascocarps are club-shaped, up to 90 mm (3.5 in) tall, black to dark brown, with a swollen, spore-bearing head, up to a quarter or half the ascocarp height, and a finely hirsute, cylindrical stipe (stem). Microscopically, dark, thick-walled, acute setae are present. The asci are 8-spored, the ascospores 110–160 × 5–7  μm, becoming 15-septate at maturity. [2]

The epithet hirsutum (Latin: 'hairy') refers to the fine hairs (setae) that cover the ascocarp. [3]

Similar species

All Trichoglossum species appear similar in the field and can only be identified by microscopic examination. Superficially similar species of Geoglossum lack setae and are not finely hirsute under a hand lens.

Conservation

In Europe the short-spored earthtongue is typical of waxcap grasslands, a declining habitat due to changing agricultural practices.

Related Research Articles

An ascocarp, or ascoma (pl. ascomata), is the fruiting body (sporocarp) of an ascomycete phylum fungus. It consists of very tightly interwoven hyphae and millions of embedded asci, each of which typically contains four to eight ascospores. Ascocarps are most commonly bowl-shaped (apothecia) but may take on a spherical or flask-like form that has a pore opening to release spores (perithecia) or no opening (cleistothecia).

<i>Pluteus cervinus</i> Species of fungus

Pluteus cervinus, also known as Pluteus atricapillus and commonly known as the deer shield or the deer or fawn mushroom, is a mushroom that belongs to the large genus Pluteus. It is found on rotten logs, roots and tree stumps and is widely distributed. It can also grow on sawdust and other wood waste. Being very variable in appearance, it has been divided into several varieties or subspecies, some of which are sometimes considered species in their own right. It is edible when young, but considered by some to be of poor quality and is not often collected for the table.

<i>Panaeolus foenisecii</i> Species of fungus

Panaeolus foenisecii, commonly called the mower's mushroom, haymaker or brown hay mushroom, is a very common and widely distributed little brown mushroom often found on lawns and is not an edible mushroom. In 1963 Tyler and Smith found that this mushroom contains serotonin, 5-HTP and 5-hydroxyindoleacetic acid. In many field guides it is listed as psychoactive; however, the mushroom does not produce any hallucinogenic effects.

<i>Gymnopilus sapineus</i> Species of fungus

Gymnopilus sapineus, commonly known as the scaly rustgill, is a small and widely distributed mushroom which grows in dense clusters on dead conifer wood. It has a rusty orange spore print and a bitter taste. This species does not stain blue and lacks the hallucinogen psilocybin.

<i>Gymnopilus liquiritiae</i> Species of fungus

Gymnopilus liquiritiae is a mushroom in the family Hymenogastraceae. The mushroom is widely distributed and grows in dense clusters on dead conifer wood. It has a rusty orange spore print, a bitter taste, and does not contain the hallucinogen psilocybin. One of its key distinguishing features is the lack of partial veil.

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

Geoglossaceae is a family of fungi in the order Geoglossales, class Geoglossomycetes. These fungi are broadly known as earth tongues. The ascocarps of most species in the family Geoglossaceae are terrestrial and are generally small, dark in color, and club-shaped with a height of 2–8 cm. The ascospores are typically light-brown to dark-brown and are often multiseptate. Other species of fungi have been known to parasitize ascocarps. The use of a compound microscope is needed for accurate identification.

<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>Spathularia</i> Genus of fungi

Spathularia is a genus of fungi in the family Cudoniaceae. Species in the genus are found in coniferous forests around the bases of conifers or near rotting logs. The genus name is Latin for 'broad sword'.

<i>Plectania nannfeldtii</i> Species of fungus

Plectania nannfeldtii, commonly known as Nannfeldt's Plectania, the black felt cup, or the black snowbank cup fungus, is a species of fungus in the family Sarcosomataceae. The fruit bodies of this species resemble small, black, goblet-shaped shallow cups up to 3 cm wide, with stems up to 4 cm long attached to black mycelia. Fruit bodies, which may appear alone or in groups on the ground in conifer duff, are usually attached to buried woody debris, and are commonly associated with melting snow. Plectania nannfeldtii is found in western North America and in Asia, often at higher elevations. Similar black cup fungi with which P. nannfeldtii may be confused include Pseudoplectania vogesiaca, P. nigrella, and Helvella corium.

<i>Trichoglossum</i> Genus of fungi

Trichoglossum is a genus of fungi in the family Geoglossaceae. They are commonly called hairy earth tongues. The type species is Trichoglossum hirsutum.

<i>Geoglossum</i> Genus of fungi

Geoglossum is a genus of fungi in the family Geoglossaceae. They are commonly called earth tongues. The type species is Geoglossum glabrum. Geoglossum species are distinguished from the related genus Trichoglossum by the lack of setae on the spore bearing surface. Geoglossum species are characterized by dark, club-shaped, terrestrial ascocarps with a fertile hymenium continuing downward from the apex of the ascocarp along the stipe, eventually intergrading with a sterile stipe. The ascospores of Geoglossum range from translucent to dark brown, and are fusiform, and multiseptate. Identification of species is based on the gross morphology of the ascocarp, color and septation of the ascospores, and shape and ornamentation of the paraphyses.

<i>Glutinoglossum glutinosum</i> Species of fungus

Glutinoglossum glutinosum, commonly known as the viscid black earth tongue or the glutinous earthtongue, is a species of fungus in the family Geoglossaceae. Widely distributed in the Northern Hemisphere, it has been found in northern Africa, Asia, Europe, and North America. Although previously thought to exist in Australasia, collections made from these locations have since been referred to new species. G. glutinosum is a saprophytic species that grows on soil in moss or in grassy areas. The smooth, nearly black, club-shaped fruitbodies grow to heights ranging from 1.5 to 5 cm. The head is up to 0.7 cm (0.3 in) long, and the stipes are sticky. Several other black earth tongue species are quite similar in external appearance, and many can be reliably distinguished only by examining differences in microscopic characteristics, such as spores, asci, and paraphyses. First described in 1796 as a species of Geoglossum, the fungus has gone through several changes of genera in its taxonomic history. It was placed in its current genus, Glutinoglossum, in 2013.

<i>Glutinoglossum</i> Genus of fungi

Glutinoglossum is a genus of six species of earth-tongue fungi in the family Geoglossaceae. The widespread type species, G. glutinosum, is commonly known as the "glutinous earth tongue". G. heptaseptatum is known only from the Czech Republic. Four additional species were described in 2015.

<i>Discina perlata</i> Species of fungus

Discina perlata, commonly known as pig's ears is a brown to tannish, wrinkled, cup- or ear-shaped fungus, sometimes with short, stout stalk. The spores of D. perlata are quite similar to those of mushrooms in the genus Gyromitra, so that some mycologists classify it there.

<i>Microglossum viride</i> Species of fungus

Microglossum viride is a species of fungi in the family Geoglossaceae. They are commonly called green earth tongues.

<i>Microglossum</i> Genus of fungi


Microglossum is a genus of fungi in the family Leotiaceae. Ascocarps occur in soil and resemble earth tongues, but are microscopically distinct. Microglossum atropurpureum, a species typical of waxcap grassland in Europe, is of global conservation concern and is listed as "vulnerable" on the IUCN Red List of Threatened Species.

<i>Microglossum atropurpureum</i> Species of fungus


Microglossum atropurpureum is a species of fungus in the family Leotiaceae. In the UK, it has been given the recommended English name of dark-purple earthtongue. Ascocarps are black, often with a purple tint, and are irregularly club-shaped. They occur in soil and resemble earth tongues, but are microscopically distinct. The species was formerly referred to the genus Geoglossum, but is not closely related to the Geoglossomycetes.

<i>Geoglossum dunense</i> Species of fungus

Geoglossum dunense is an earth tongue fungus in the family Geoglossaceae, described as new to science in 2015. It is known from the island of Cyprus, where it grows in coastal dunes and salt marshes under the Phoenicean juniper, but has also been documented in Malta and England following collections from diverse habitats. It produces very small fruit bodies barely exceeding 1–2 cm and has polymorphic, often moniliform paraphyses and predominantly 3-septate spores.

Pseudotricholoma metapodium is a species of agaric in the family Tricholomataceae. It has been given the recommended English name of mealy meadowcap. The species has a European distribution, occurring mainly in agriculturally unimproved grassland. Threats to its habitat have resulted in the mealy meadowcap being assessed as globally "endangered" on the IUCN Red List of Threatened Species.

<i>Trichoglossum walteri</i> Species of fungus

Trichoglossum walteri is a species of fungus in the family Geoglossaceae. In its current sense, it is considered to be cosmopolitan and as such represents a complex of species worldwide. In the UK, it has been given the recommended English name of short-spored earthtongue. The European species occurs mainly in agriculturally unimproved grassland and threats to this habitat have resulted in the short-spored earthtongue being assessed as globally "vulnerable" on the IUCN Red List of Threatened Species.

References

  1. Holden L. (April 2022). "English names for fungi 2022". British Mycological Society . Retrieved 2022-12-06.
  2. 1 2 Hustad VP (2015). "A circumscription of the earth tongue fungi: class Geoglossomycetes" . Retrieved 2022-12-06.
  3. Trudell, Steve; Ammirati, Joe (2009). Mushrooms of the Pacific Northwest. Timber Press Field Guides. Portland, OR: Timber Press. pp. 242–243. ISBN   978-0-88192-935-5.