Saproamanita inopinata

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Saproamanita inopinata
Saproamanita inopinata (Canterbury, New Zealand) 01.jpg
Scientific classification OOjs UI icon edit-ltr.svg
Domain: Eukaryota
Kingdom: Fungi
Division: Basidiomycota
Class: Agaricomycetes
Order: Agaricales
Family: Amanitaceae
Genus: Saproamanita
Species:
S. inopinata
Binomial name
Saproamanita inopinata
(D.A. Reid & Bas) Redhead, Vizzini, Drehmel & Contu (2016)

Saproamanita inopinata, commonly called unexpected anamita, [1] is a basidomycete fungus in the subgenus Saproamanita. This species was previously called Anamita inopinata, before being briefly renamed to Aspidella inopinata until it received its current name. [2] The native range is currently unknown, with it currently being considered introduced into both New Zealand and England. [3] [4]

Contents

Saproamanita inopinata
Information icon.svg
Gills icon.png Gills on hymenium
Convex cap icon.svg Cap is convex
Free gills icon2.svg Hymenium is free
Transparent spore print icon.svg
Spore print is cream
Saprotrophic fungus.svgEcology is saprotrophic
Mycomorphbox Question.pngEdibility is unknown

Taxonomy

This species was first described in 1987 by Reid and Bass. [5] The name "inopinata" translates into "unexpected". [6] This was then renamed into Aspidella inopinata in 2012 based on morphological, ecological and molecular data by Vizzini and Contu. [7] [8] Finally this was moved to Saproamanita in 2016 by Redhead, Vizzini, Dehmel and Contu. [9] [10] The Amanita genus was split into the saprophytic Saproamanita and ectomycorrhizal Amanita in 2016. [10]

Description

The pileus are 2–8 centimetres (1–3 inches) in diameter, convex or applanate, finally shallowly concave with a downward curved margin, entirely covered by a thick cottony pale grey-brown felt which disrupts into very prominent darker pyramidal warts to 0–5 cm (0–2 in) high. The stipe is 4–7 cm (1+12–3 in) tall, 0.5–2 cm (1434 in) wide, cylindric to slightly enlarged below before tapering to a rooting base, apex seemingly sheathed by a closely adpressed, pale grey annulus which becomes darker downward to the narrow, black, free margin. With age the portion above this black band disrupts into pale grey zig-zag bands of scales on a pale pinkish salmon-coloured background. Below the black annulus the stem of young fruitbodies is at first densely spotted with very dark grey to almost black floccose scales, which soon disappear leaving the lower part of the stem densely flecked with delicate, dark blackish brown, hair-like fibrils with recurved tips on a dirty salmon to bright tawny background, finally passing into blackish grey-brown on the rooting base. Volva not visible. [3]

The lamellae are 1 cm (12 in) broad, rounded at the margin, salmon coloured. Flesh white in pileus with a slight to prominent pale grey region beneath cuticle; white in upper part of stipe passing into cream or pale salmon below. [3]

The spores very variable in shape and size, typically broadly elliptic to ovate, thin walled, hyaline, strongly amyloid, 8–9 x 6–1 pm (in fruitbodies with 4-spored basidia) on some specimens varying from subglobose to ovate, broadly elliptic, elliptic or pip-shaped, and when there is a mixture of 2- and 4-spored basidia on the same gill the range is 8–12 x 6–8^m. Basidia clavate or lanceolate, 43–56 x 6–8/mi, thin-walled, hyaline, either 2- or 4-spored, often on the same gill, and with a basal clamp-connection. Cheilocystidia not recovered. [3]

Structure of warts on pileus comprising chains of basically erect, thin-walled, hyaline, cylindric or barrel-shaped elements with pale brown sap and clamp-connections at the septa, reaching to 255/mi in length, and to 43/mi in width, in the lower portion of the warts the elements are often more fusiform, in the apical portion they are shorter and less regularly arranged. In some fruit-bodies the structure of the warts is modified by presence of numerous branched, highly refractive oleiferous elements. Structure of annulus similar to warts on pileus, consisting of chains of barrel-shaped, thin-walled, hyaline, clamp-bearing segments to 120/mi long and to 23pm wide. [3]

Distribution and habitat

S. inopinata was first found in Europe in 1916, and 1986 in Britain. [11] However this is thought to be introduced because of the human intervention in the sites as well as many avid mushroom hunters whom would have found the mushroom if it had been present previously. [3] It is also reported as an introduced species to New Zealand. [4] S. inopinata's native range is unclear. [11] [4] The mushroom is also found in the Netherlands, Germany and France, [11] however sightings since 2012 have decreased. [11]

S. inopinata was previously thought to be mycorrhizal, forming associations with New Zealand plants (both native and introduced), including kōwhai, broadleaves, pine, Lawson Cypress and yew. [12] [13] [14] It is now known to be saprotrophic. [10]

Related Research Articles

<i>Amanita gemmata</i> Species of fungus

Amanita gemmata, commonly known as the gemmed amanita or the jonquil amanita, is an agaric mushroom of the family Amanitaceae and genus Amanita. The fruit body has a cap that is a dull to golden shade of yellow, and typically 2.5–12 centimetres in diameter. The cap surface is sticky when moist, and characterized by white warts, which are easily detached. It is initially convex, and flattens out when mature. The flesh is white and does not change colour when cut. The gills are white and closely spaced. The stem is pale yellow, and measures 4–12 cm long by 0.5–1.9 cm thick. The partial veil that covers the young fruit body turns into the ring on the stem at maturity. The spore print is white. It resembles numerous other species.

<i>Melanoleuca</i> Genus of fungi

Melanoleuca is a poorly known genus of saprotrophic mushrooms traditionally classified in the family Tricholomataceae. Most are small to medium sized, white, brown, ocher or gray with a cylindrical to subcylindrical stipe and white to pale yellowish gills. The basidiospores are ellipsoid and ornamented with amyloid warts. Melanoleuca is considered a difficult group to study due to their macroscopic similarities among species and the need of a thorough microscopic analysis to separate species. DNA studies have determined that this genus is closely related to Amanita and Pluteus and that it does not belong to the family Tricholomataceae.

<span class="mw-page-title-main">Amanitoideae</span> Subfamily of fungi

Amanitoideae is a subfamily of the fungi or mushroom family Amanitaceae. The name was first used as Agaricaceae subfamily Amanitoideae before the subfamily was raised in rank to become the Amanitaceae separated from the revised Agaricaceae.

<i>Amanita daucipes</i> Species of fungus

Amanita daucipes is a species of fungus in the family Amanitaceae of the mushroom order Agaricales. Found exclusively in North America, the mushroom may be recognized in the field by the medium to large white caps with pale orange tints, and the dense covering of pale orange or reddish-brown powdery conical warts on the cap surface. The mushroom also has a characteristic large bulb at the base of its stem with a blunt short rooting base, whose shape is suggestive of the common names carrot-footed lepidella, carrot-foot amanita, or turnip-foot amanita. The mushroom has a strong odor that has been described variously as "sweet and nauseous", or compared to an old ham bone, or soap. Edibility is unknown for the species, but consumption is generally not recommended due its position in the Amanita subgroup Lepidella, which contains some poisonous members.

<i>Amanita aestivalis</i> Species of fungus

Amanita aestivalis, commonly known as the white American star-footed amanita, is a species of fungus in the mushroom family Amanitaceae. The cap of the white fruit body is 5 to 8.5 centimetres in diameter. It sits atop a stem that is 8.5 to 16 cm long. The entire fruit body will slowly stain a reddish-brown color in response to bruising. A. aestivalis may be a synonym for A. brunnescens, and may be confused with several other white-bodied amanitas. The fungus is distributed in eastern North America.

<i>Amanita australis</i> Species of fungus

Amanita australis is a species of fungus in the family Amanitaceae. It produces small- to medium-sized fruit bodies, with brown caps up to 9 centimetres in diameter covered with pyramidal warts. The gills on the underside of the cap are white, closely crowded together, and free from attachment to the stem. The stem, up to 9 cm long, has a ring and a bulbous base. The mushroom may be confused with another endemic New Zealand species, A. nothofagi, but can be distinguished by differences in microscopic characteristics.

<i>Amanita nothofagi</i> Species of fungus

Amanita nothofagi is a species of fungus in the family Amanitaceae. Endemic to New Zealand, the species was first described by mycologist Greta Stevenson in 1962. The fruit bodies have dark brown caps that are up to 13 cm (5.1 in) in diameter and covered with patches of soft greyish-brown scales or warts. The gills underneath the cap are crowded together, free from attachment to the stem, and white, becoming tinged with yellow in age. The stem of the mushroom is 4–14 cm (1.6–5.5 in) long by 0.5–2.5 cm (0.2–1.0 in) thick, and has a ring. The spore print is white, and individual spores are spherical to ellipsoid, measuring 7.5–9 by 7.5–9 micrometres. The mushroom may be confused with another New Zealand species, A. australis, but can be distinguished by certain characteristics. Amanita nothofagi is a mycorrhizal species, and grows in association with native New Zealand trees such as Southern Beech.

<i>Amanita nehuta</i> Species of fungus

Amanita nehuta, also called Maori dust amanita, is a species of fungus in the family Amanitaceae.It has only a dark ring rather than a universal veil and white spores. Abundant in New Zealand, it can be found growing under Leptospermum and Nothofagus species.

<i>Amanita pekeoides</i> Species of fungus from New Zealand

Amanita pekeoides is a species of fungus in the family Amanitaceae. It is endemic to New Zealand.

<i>Amanita jacksonii</i> Species of fungus

Amanita jacksonii, also known as Jackson's slender amanita, American Slender Caesar, and Eastern Caesar's Amanita, is a North American species of fungus in the family Amanitaceae. It is a reddish-orange colored mushroom species which can be identified by its yellow gills, large, white, sacklike volva.

<i>Amanita ravenelii</i> Species of fungus

Amanita ravenelii, commonly known as the pinecone lepidella, is a species of fungus in the family Amanitaceae. The whitish fruit bodies are medium to large, with caps up to 17 centimetres wide, and stems up to 25 cm (10 in) long. The cap surface has large warts and the stem has a scaly, bulbous base. The mushrooms have a unique chlorine like odor.

<i>Saproamanita thiersii</i> Species of fungus

Saproamanita thiersii, commonly called Thiers' lepidella, is a North American saprotrophic basidiomycete fungus in the genus Saproamanita. It is a white, small mushroom. Its cap is convex, measuring 3.5–10 centimetres across, and the stipe is 8–20 cm (3–8 in) long. The spore print is white.

<i>Saproamanita vittadinii</i> Species of fungus in the family Amanitaceae

Saproamanita vittadinii, commonly known as the Vittadini's lepidella, is a European saprophyte mushroom classified in the genus Saproamanita. Unlike some Amanitas, this species is known to occur without accompanying woody plant symbionts. It has a general aspect somewhat between Macrolepiota and Armillaria, but it is characterized by a pure white colour overall and by the squamous (scaly) covering of cap and stipe.

<i>Amanita albocreata</i> Species of fungus

Amanita albocreata, also called the ringless panther or the ringless panther amanita, is a species of fungus in the family Amanitaceae. It was discovered in 1944, by William Murrill. It is commonly found in northeastern United States and southeastern Canada and elsewhere in North America. This species, that grows about 5 to 15 centimeters in length, is doubted to be fatally toxic. It normally grows between the rainy months of June and August.

<i>Amanita parcivolvata</i> Species of fungus

Amanita parcivolvata also known as ringless false fly amanita, is a fungus that produces fruit bodies ranging from 3–12 centimetres in width and height.

<i>Saproamanita nauseosa</i> Species of fungus

Saproamanita nauseosa is a species of agaric fungus in the family Amanitaceae. First described by English mycologist Elsie Maud Wakefield in 1918 as a species of Lepiota, it was named for its nauseating odor. The type specimen was found growing on soil in the Nepenthes greenhouse at Kew Gardens. Derek Reid transferred the species to Amanita in 1966, and then in 2016 the separate genus Saproamanita was created by Redhead et al. for saprophytic Amanitas and it was transferred to this new genus.

<i>Saproamanita</i> Genus of fungi

The genus Saproamanita contains about 24 species of agarics and is one of six genera in the family Amanitaceae, of which the similar Amanita is also a member. Saproamanita differs from Amanita in that its species are saprophytic, and not ectomycorrhizal.

<i>Amanita virgineoides</i> Species of fungus

Amanita virgineoides, known as the false virgin's lepidella, is a species of fungus in the genus Amanita.

<i>Amanita crenulata</i> Toxic species of mushroom

Amanita crenulata, also known as the poison champagne amanita, is a species of fungus that is very common in the Northeast United States.

References

  1. "Unexpected Amanita (Saproamanita inopinata)". iNaturalist NZ. Retrieved 2023-05-29.
  2. "Taxonomic Changes Taxon: Saproamanita inopinata (Active)". iNaturalist NZ. Retrieved 2023-05-29.
  3. 1 2 3 4 5 6 Reid, Derek (1987). "New or interesting records of British Hymenomycetes VII". Notes from the Royal Botanic Garden Edinburgh. 44 (3): 503–540.
  4. 1 2 3 Ridley, Geoffrey (2000-10-01). "The New Zealand connection – Amanita inopinata – the mystery deepens". Field Mycology. 1 (4): 117–118. doi: 10.1016/S1468-1641(10)60061-8 .
  5. "Index Fungorum - Names Record". www.indexfungorum.org. Retrieved 2023-05-29.
  6. Forest, Jacques; de Saint Laurent, Michele (1975). "Présence dans la faune actuelle d'un représentant du groupe mésozoïque des Glyphéides: Neoglyphea inopinata gen. nov., sp. nov. (Crustacea Decapoda Glypheidae)". Comptes Rendus de l'Académie des Sciences. Série D (281): 155–158.
  7. "Index Fungorum - Names Record". www.indexfungorum.org. Retrieved 2023-05-29.
  8. Vjzzini, Alfredo; Contu, Marco; Ercole, Enrico; Voyron, Samuele (15 November 2012). "Rivalutazione e delimitazione del genere Aspidella (Agaricales, Amanitaceae), nuovamente separato da Amanita" [Reappraisal and redefinition of Aspidella (Agaricales, Amanitaceae), a genus newly segregated from Amanita]. Micologia e Vegetazione Mediterranea. 27 (2): 75–90.
  9. "Index Fungorum - Names Record". www.indexfungorum.org. Retrieved 2023-05-29.
  10. 1 2 3 Redhead, Scott A.; Vizzini, Alfredo; Drehmel, Dennis C.; Contu, Marco (June 2016). "Saproamanita, a new name for both Lepidella E.-J. Gilbert and Aspidella E.-J. Gilbert (Amaniteae, Amanitaceae)". IMA Fungus. 7 (1): 119–129. doi:10.5598/imafungus.2016.07.01.07. PMC   4941681 . PMID   27433443.
  11. 1 2 3 4 "National Fungus Weekend - FCT". www.fungustrust.org.uk. Retrieved 2023-05-29.
  12. Overall, Andy (January 2010). "Bushy Park Fungi Survey Report" (PDF). London Fungus Group.
  13. "National Fungus Weekend - FCT". www.fungustrust.org.uk. Retrieved 2023-05-29.
  14. "Saproamanita inopinata (D.A. Reid & Bas) Redhead, Vizzini, Drehmel & Contu 2016 - Biota of NZ". biotanz.landcareresearch.co.nz. Retrieved 2023-05-29.