Biology:Hydnangiaceae

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Short description: Family of fungi

Hydnangiaceae
Violett. Lacktr..JPG
Laccaria amethystina
Scientific classification e
Domain: Eukaryota
Kingdom: Fungi
Division: Basidiomycota
Class: Agaricomycetes
Order: Agaricales
Family: Hydnangiaceae
Gäum. & C.W.Dodge (1928)
Type genus
Hydnangium
Wallr. (1839)
Genera

Hydnangium
Laccaria
Maccagnia
Podohydnangium

The Hydnangiaceae are a family of fungi in the mushroom order Agaricales. Widespread in temperate and tropical regions throughout the world, the family contains about 30 species in four genera.[1] Species in the Hydnangiaceae form ectomycorrhizal relationships with various species of trees in both coniferous and deciduous forests.[2]

Description

They may have fruit bodies with stipes and caps (pileate-stipiate), or gasteroid (with internal spore production, like puffballs). When pileate, the cap is smooth to scaly, sometimes striate, typically orange-brown or violet in color. The gills are widely spaced, thick, and waxy. In gasteroid forms, fruit body shape is irregular, with thin walls. Also, the peridium (the outer layer of the spore-bearing organ) is sometimes short-lasting (evanescent). Columella (the central, sterile part of the sporangium) may be absent or present, the hymenia are not gelatinized, and are formed in locules. Basidia are club-shaped (clavate), with two or four sterigmata, sometimes with accompanying cheilocystidia (cystidia on the edges of gills).

Distribution and habitat

Hydnangiaceae taxa have a widespread distribution in both temperate and tropical zones.[3]

Ecology

Hydnangiaceae species are ectomycorrhizal, forming symbiotic relationships with various plant species, and have an important role in forest ecosystems.[4][5]

Genera

  • Hydnangium has hypogeal fruit bodies like truffles, with no stipe, nor a columella.[6]
  • Laccaria has 'typical' mushroom-shaped (pileate-stipiate) fruit bodies.
  • Maccagnia is a poorly known gasteroid genus containing a single species from Italy.[7]
  • Podohydnangium has subepigeal fruit bodies, with partially exposed gleba at the base and a stipe columnella.[8]

See also

References

  1. "Major clades of Agaricales: a multilocus phylogenetic overview". Mycologia 98 (6): 982–995. 2006. doi:10.3852/mycologia.98.6.982. PMID 17486974. https://naldc-legacy.nal.usda.gov/naldc/download.xhtml?id=349&content=PDF. 
  2. Fungal Families of the World. Wallingford, UK: CAB International. 2007. p. 164. ISBN 978-0-85199-827-5. 
  3. Mueller GM. (1997). "Distribution and species composition of Laccaria (Agaricales) in tropical and subtropical America". Revista de Biología Tropical 44: 131–135. 
  4. Mueller GM.. "Systematics of Laccaria (Agaricales) in the Continental United States and Canada, with discussions on extralimital taxa and descriptions of extant types". Fieldiana: Botany. New Series 30: 1–158. 
  5. "Evidence from population genetics that the ectomycorrhizal basidiomycete Laccaria amethystina is an actual multihost symbiont". Molecular Ecology 17 (12): 2825–2838. 2008. doi:10.1111/j.1365-294X.2008.03790.x. PMID 18489549. 
  6. "Hydnangium and related genera". Annals of the Missouri Botanical Garden 23 (4): 565–598. 1936. doi:10.2307/2394151. https://www.biodiversitylibrary.org/part/4084. 
  7. Singer R. (1959). "Type Studies on Basidiomycetes IX: Maccagnia carnica". Sydowia 13: 235–238. http://www.cybertruffle.org.uk/cyberliber/index.htm. 
  8. "Gasteroid Basidiomycota of Victoria State, Australia. I. Hydnangiaceae". Kew Bulletin 39 (3): 499–508. 1984. doi:10.2307/4108593. 

Wikidata ☰ Q1933471 entry