Gloeohypochnicium

from Wikipedia, the free encyclopedia
Gloeohypochnicium
Systematics
Subdivision : Agaricomycotina
Class : Agaricomycetes
Subclass : insecure position (incertae sedis)
Order : Russulales (Russulales)
Family : Incertae sedis
Genre : Gloeohypochnicium
Scientific name
Gloeohypochnicium
( Parmasto ) Hjortstam 1987

Gloeohypochnicium ( Syn. : Hypochnicium subgen. Gloeohypochnicium ) is a fungal species within the order of Täublingsartigen (Russulales). It is one of numerous genera that belong to Hypochnicium s. l. were separated. Unlike its other satellite genera, Gloeohypochnicium does not belong to the Polyporales , but to the Russuloid community of descent . The saprobiontic white rot fungi form pale, smooth and waxy fruiting bodies that cover the substrate in layers and have a fruity odor. They have fairly large, slightly warty ornamented , but inamyloid and thick-walled basidiospores and sulfoaldehyde-positive gloeocystids . The type species of the genus is Gloeohypochnicium analogum (Bourdot & Galzin) Hjortstam .

features

The resupinate , annual fruiting bodies are firmly attached to the substrate. They are up to 0.5 mm thick and can often cover large areas. The edge is usually more or less frayed and the hymenium is smooth to bumpy and cream to pale ocher in color. The waxy soft context can sometimes exude a semi-transparent liquid when it is cut. The mushroom has a very strong and more or less penetrating fruity odor. However, there are also odorless specimens.

The hyphae system is monomitic . The hyphae are thin to thick-walled and fairly tightly interwoven. They are hyaline, clearly demarcated and have buckles on their septa . The hymenium is a euhymenium and consists of narrowly clubbed to cylindrical and more or less winding basidia , which are often a little constricted. They are 50–75 µm long and have four curved sterigms and a basal buckle. In addition to the basidia, one can find cylindrical to club-shaped or spindle-shaped, 80–200 µm long, thin-walled gloeocystids that are sulfoaldehyde-positive. The thick-walled and broadly ellipsoidal to almost spherical and cyanophilic but inamyloid basidiospores have a spore ornament of low, indistinct and circular warts. They are 7–10 µm long and 5–8 µm wide. The spore powder is whitish.

Ecology and diffusion

The two species of the genus are white rot fungi that occur saprobiotically on hardwood. Gloeohypochnicium versatum is a purely North American species, while Gloeohypochnicium analogum occurs in North America and Europe. It has been found in several European countries, including Russia, but is very scattered to very rare everywhere.

Systematics

Gloeohypochnicium is a satellite genus of the Hypochnicium complex. Among the representatives of the genus Hypochnicium s. l. it is corticoid , wood-decomposing white rot fungi. The genus is characterized by its thick-walled, smooth or ornamented and cyanophilic spores and its resupinate fruiting bodies that adhere to the substrate. The fungi have a monomitic hyphae and nodular septate hyphae. In 1968 E. Parmasto subdivided the genus Hypochnicium and placed Hypochnicium analogum in the subgenus Gloeohypochnicium , which Hjortstam raised in 1987 with H. analogum as the only species to the genus Gloeohypochnicium . Gloeohypochnicium differs from Hypochnicium in its sulfoaldehyde-positive gloeocystids and the weakly ornamented spores. Due to its morphological similarity, T. Telleria and her co-authors placed Hypochnicium versatum also in the genus Gloeohypochnicium . It also has sulfocystids and ornamented, thick-walled spores. However, there is no molecular biological proof of the relationship to Gloeohypochnicium analogum .

Phylogenetic studies by E. and K.-H. Larsson 2003 showed that Gloeohypochnicium analogum belongs to the Russuloid descent community and not to the Polyporales, like the other representatives of the Hypochnicium complex. The exact position of the genus Gloeohypochnicium within the order of the deafblings-like is still unclear. E and K.-H. Larsson found that Gloeohypochnicium analogum in Parsimony family trees was often at the base of the Russulales family tree, while in the Neighbor Joining family trees in the Eurussuloid clade it stood next to the Amylostereaceae , so the genus is currently (as of 2014) not assigned to any family .

swell

  • Gloeohypochnicium. In: MycoBank.org. International Mycological Association, accessed February 19, 2013 .
  • Gloeohypochnicium. (Parmasto) Hjortstam (1987). In: www.indexfungorum.org. Retrieved February 20, 2013 .

Individual evidence

  1. ↑ a b K. Hjortstam: Studies in tropical Corticiaceae (Basidiomycetes) VII. Specimens from East Africa, collected by L. Ryvarden. II. In: Mycotaxon . tape 28 , no. 1 , 1987, pp. 19-37 ( cybertruffle.org ).
  2. ↑ Corticiaceae s. l. i . In: A. Bernicchia, SP Gorjón (ed.): Fungi Europaei . tape  12 , 2010, p. 304 ( mycobank.org (genus) ; description of Gloeohypochnicium analogum ).
  3. ^ A b Jens H. Petersen, Thomas Læssøe: about the genus Gloeohypochnicium. In: MycoKey. Retrieved February 22, 2013 .
  4. ^ J. Eriksson, L. Ryvarden: The Corticiaceae of North Europe . tape 4 , 1976, p. 693 ( mycobank.org ).
  5. ↑ J. Ginns: Re-evaluation of reports of 15 uncommon species of Corticium from Canada and the United States . In: Mycotaxon . tape 44 , no. 1 , 1992, p. 214 ( mycobank.org ).
  6. ^ KK Nakasone: Cultural studies and identification of wood-inhabiting Corticiaceae and selected Hymenomycetes from North America . In: Mycologia Memoirs. tape 15 , 1990, pp. 167 ( mycobank.org ).
  7. ↑ Ellen Larsson, Karl-Henrik Larsson: Phylogenetic relationships of russuloid basidiomycetes with emphasis on aphyllophoralean taxa . In: Mycological Society of America (Ed.): Mycologia . tape 95 , no. 6 . Lawrence 2003, p. 1037-1065 ( mycologia.org ).
  8. ^ Karl-Henrik Larsson: Re-thinking the classification of corticioid fungi . In: Elsevier (Ed.): Mycological research . tape 111 , no. 9 , 2007, p. 1040-1063 .
  9. ^ M. Teresa Telleria, Margarita Dueñas, Ireneia Melo, Nils Hallenberg, María P. Martín: A re-evaluation of Hypochnicium (Polyporales) based on morphological and molecular characters . In: Mycologia . tape 102 , no. 6 , November 2010, p. 1426-1436 , doi : 10.3852 / 09-242 ( mycologia.org [PDF]).

Web links