Fomitopsis schrenkii

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Fomitopsis schrenkii
Scientific classification
Domain:	Eukaryota
Kingdom:	Fungi
Division:	Basidiomycota
Class:	Agaricomycetes
Order:	Polyporales
Family:	Fomitopsidaceae
Genus:	Fomitopsis
Species:	F. schrenkii
Binomial name
Fomitopsis schrenkii Haight & Nakasone

Fomitopsis schrenkii is a newly isolated species from the genus Fomitopsis. Previously thought to be identical to the red-belted conk, DNA analysis shows it is in fact a distinct species.^[1] This species is named after Herman von Schrenk, a respected name in forest pathology.^[1] It occurs most frequently in the Southwestern United States, and has a somewhat limited range.^[1] It prefers coniferous trees and rarely associates on hardwoods.^[1] This substrate preference and location range is most helpful in distinguishing F. schrenkii from its close relative, F. mounceae.

Fomitopsis schrenkii is a perennial, woody conk with a fan-like shape.^[1] The surface is smooth and can be resinous, and usually ends with a bumpy margin.^[1] The colour usually follows a set pattern- at base a whiteish orange, then darkening to a true orange or brown, then lightening to a creamy-white at the margins.^[1] Older specimens will darken to a grey or brown colour, with bands less visible but still distinct.^[1] If broken open, the woody context of the conk is a light yellow or tan colour, with no distinct bands.^[1] The underside of the conk is a light yellow or white colour, with 3-4 round pores per millimetre.^[1] This species stains reddish or light brown in KOH.^[1]

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