Trichoglossum hirsutum

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Trichoglossum hirsutum
Gemeine Haarzunge Trichoglossum hirsutum.JPG
Trichoglossum hirsutum, Germany
Scientific classification OOjs UI icon edit-ltr.svg
Domain: Eukaryota
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 black earth tongue, [2] 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. [3]

Description

Ascocarps are club-shaped, up to 9 centimetres (3+12 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) up to 5 millimetres (14 in) wide. [4] 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. [3]

The epithet hirsutum (Latin: 'hairy') refers to the fine hairs (setae) that cover the ascocarp. [5]

Similar species

Many Trichoglossum species appear similar in the field and can only be identified by microscopic examination. [4] Superficially similar species of Geoglossum lack setae and are not finely hirsute under a hand lens. [4] Thuemenidium atropurpureum is usually more robust and can be slightly purplish. [4] Microglossum species have non-black hues. [4] Tolypocladium ophioglossoides can appear similar in age. [4]

Conservation

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

Trichoglossum hirsutum
Information icon.svg
Smooth icon.pngSmooth hymenium
No cap icon.svgNo distinct cap
NA cap icon.svg Hymenium attachment is irregular or not applicable
Bare stipe icon.svg Stipe is bare
Saprotrophic fungus.svgEcology is saprotrophic

Related Research Articles

An ascocarp, or ascoma, 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>Coprinus comatus</i> Species of fungus

Coprinus comatus, commonly known as the shaggy ink cap, lawyer's wig, or shaggy mane, is a common fungus often seen growing on lawns, along gravel roads and waste areas. The young fruit bodies first appear as white cylinders emerging from the ground, then the bell-shaped caps open out. The caps are white, and covered with scales—this is the origin of the common names of the fungus. The gills beneath the cap are white, then pink, then turn black and deliquesce ('melt') into a black liquid filled with spores. This mushroom is unusual because it will turn black and dissolve itself in a matter of hours after being picked or depositing spores.

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

Pluteus cervinus, commonly known as the deer shield, deer mushroom, or fawn mushroom, is a species of fungus in the order Agaricales. Fruit bodies are agaricoid (mushroom-shaped). Pluteus cervinus is saprotrophic and fruit bodies are found on rotten logs, roots, tree stumps, sawdust, and other wood waste. The species is common in Europe and eastern North America, but rare and possibly introduced in western North America.

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

Panaeolus foenisecii, commonly called the mower's mushroom, haymaker, haymaker's panaeolus, 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 or common and boring gymnopilus, 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.

<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>Humaria hemisphaerica</i> Species of fungus

Humaria hemisphaerica is a species of fungus in the family Pyronemataceae. In the UK it has the recommended English name of glazed cup; in North America it has been called the hairy fairy cup or the brown-haired fairy cup. Ascocarps are cup-shaped and can be recognized by their smooth, white inner surface and hairy, brown outer surface. The species is ectomycorrhizal and occurs in Europe and North America.

<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 centimetres across. They have a short, tapered stalk.

<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>Hygrophorus subalpinus</i> Species of fungus

Hygrophorus subalpinus, commonly known as the subalpine waxycap, is a species of white snowbank fungus in the family Hygrophoraceae. Found in the mountains of western North America, it is found growing on the ground under conifers, usually near snowbanks.

<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>Lactarius fallax</i> Species of fungus

Lactarius fallax, commonly known as the velvety milk cap, is a species of fungus in the family Russulaceae. Found in both spruce and mixed conifer forests, it is a fairly common species in the Pacific Northwest region of North America, with a northerly range extending to Alaska. Its fruit bodies are medium-sized, with velvety, brown to blackish caps up to 3–9 cm (1.2–3.5 in) in diameter bearing a distinct pointed umbo. The caps are supported by velvety stems up to 6 cm (2.4 in) long and 1.5 cm (0.6 in) thick. The mushroom oozes a whitish latex when it is cut, and injured tissue eventually turns a dull reddish color. The eastern North American and European species Lactarius lignyotus is closely similar in appearance, but can be distinguished by its differing range.

<i>Ramaria araiospora</i> Species of fungus

Ramaria araiospora, commonly known as the red coral, is a coral mushroom in the family Gomphaceae. First described in 1974, it is found in North America, and the Himalaya. An edible species, it is sold in local markets in Mexico.

<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>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.

<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. Arora, David (1979). Mushrooms demystified: a comprehensive guide to the fleshy fungi of the central California coast. Berkeley, Calif: Ten Speed Press. ISBN   978-0-89815-010-0.
  3. 1 2 Hustad VP (2015). "A circumscription of the earth tongue fungi: class Geoglossomycetes" . Retrieved 2022-12-06.
  4. 1 2 3 4 5 6 Audubon (2023). Mushrooms of North America. Knopf. p. 51. ISBN   978-0-593-31998-7.
  5. 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.