Biology:Fomitopsis mounceae

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Short description: Species of fungus

Fomitopsis mounceae
Scientific classification edit
Kingdom: Fungi
Division: Basidiomycota
Class: Agaricomycetes
Order: Polyporales
Family: Fomitopsidaceae
Genus: Fomitopsis
Species:
F. mounceae
Binomial name
Fomitopsis mounceae
Haight & Nakasone (2019)
View the Mycomorphbox template that generates the following list
float
Mycological characteristics
pores on hymenium
no distinct cap
hymenium attachment is irregular or not applicable
lacks a stipe
spore print is white
ecology is saprotrophic or parasitic
edibility: inedible

Fomitopsis mounceae is a North American species of shelf fungus.

Taxonomy

Originally thought to be identical to the red-belted conk, studies show that it is in fact a discrete species.[1] The original specimen was isolated from Edson, Alberta on a poplar tree. This species was named after Canadian mycologist Irene Mounce.[1]

Description

Fomitopsis mounceae is typically fan-like in shape, with distinct bands usually brown or red in colour.[1] It can have a resinous, sticky coating.[1] As the conks age, they often become bumpy or warty.[1] The cap is 8–25 centimetres (3–10 in) wide and 5–12 cm (2–4 12 in) thick at the base.[2]

The underside of the conk is typically white or yellow in colour, with 3–6 round pores per millimetre.[1] If broken open, the inside is yellowish,[2] or sometimes woody and brown, with no distinct bands.[1] It stains brown in KOH.

The spore print is whitish to cream.[2]

Similar species

Fomitopsis ochracea is very similar but always lacks a red, orange or yellow zone; F. ochracea chars if burnt, while F. mounceae melts. Fomitopsis schrenkii is found in the Southwest.[2] Ganoderma applanatum usually lacks a blackish zone on the cap and its pores stain dark brown. Species of Fomes are usually taller than wide.[2]

Habitat and distribution

The perennial woody conk causes cubical brown rot typical of Fomitopsis. It favours aspen or conifer trees.[2] It is a detritivore, and does not typically grow on live trees. It typically grows at lower elevations than F. schrenkii.[1]

It is distributed across Canada and the northern United States, as far south as northern California.[1]

References

  1. 1.0 1.1 1.2 1.3 1.4 1.5 1.6 1.7 1.8 Haight, John-Erich; Nakasone, Karen K.; Laursen, Gary A.; Redhead, Scott A.; Taylor, D. Lee; Glaeser, Jessie A. (2019-03-04). "Fomitopsis mounceae and F. schrenkii—two new species from North America in the F. pinicola complex". Mycologia 111 (2): 339–357. doi:10.1080/00275514.2018.1564449. ISSN 0027-5514. PMID 30908115. https://figshare.com/articles/dataset/_i_Fomitopsis_mounceae_i_and_i_F_schrenkii_i_two_new_species_from_North_America_in_the_i_F_pinicola_i_complex/7887857. 
  2. 2.0 2.1 2.2 2.3 2.4 2.5 Audubon (2023). Mushrooms of North America. Knopf. pp. 260. ISBN 978-0-593-31998-7. 

Wikidata ☰ Q100152243 entry