Antrodia serialis (Fr.) Donk
no common name
Fomitopsidaceae

Species account author: Ian Gibson.
Extracted from Matchmaker: Mushrooms of the Pacific Northwest.

Introduction to the Macrofungi

Photograph

© Adolf Ceska     (Photo ID #21394)


Map

E-Flora BC Static Map

Distribution of Antrodia serialis
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Species Information

Summary:
Features include 1) flat to shelf-like fruitbodies, often shingled, tough and (except on the cut ends of logs) easily peeled off in one piece, 2) a ochraceous to pale cinnamon faintly zoned cap that is finely tomentose at first, 3) a white to buff pore surface with round rather thick-walled pores, and 4) microscopic characters including subfusiform to cylindric spores. The current name in the online Species Fungorum, accessed November 16, 2020 is Neoantrodia serialis, but the current name in MycoBank, accessed the same day, was Antrodia serialis. Antrodia serialis is common in North America (Gilbertson).
Taste:
slightly bitter in fresh condition (Gilbertson)
Microscopic:
spores 7-10 x 2.5-4 microns, subfusiform to cylindric, colorless, inamyloid; basidia 4-spored, 20-25 x 5-7 microns, clavate, with basal clamp; cystidia "none, but pointed cystidioles may occur among the basidia, often difficult to find"; hyphal system dimitic, generative hyphae 2-4 microns wide, thin-walled, with clamp connections, skeletal hyphae dominating, 2-5 microns wide, "semisolid to thick-walled, mostly straight, but occasionally dichotomously branched", (Gilbertson), spores 6.5-9 x 3-4 microns, elliptic, smooth, inamyloid, colorless; cystidioles beaked, e.g. 30 x 4 microns, (Breitenbach), spores 6.3-8 x 2.2-3.3 microns (Kout(1) from Dai & Niemela)
Spore Deposit:
white (Buczacki)
Notes:
Antrodia serialis has been found in BC, WA, OR, ID, AB, MB, NF, NS, NWT, ON, PQ, YT, AK, AR, AZ, AL, CA, CO, CT, FL, GA, IA, IL, KS, KY, LA, MA, MD, ME, MI, MN, MO, MT, NC, NH, NJ, NM, NV, NY, OH, PA, TN, TX, UT, VA, VT, WI, WV, and WY, and is "Widespread in Himalaya and Northern Asia and throughout Europe. In Africa known from North Africa and the high mountains in East Africa in conifer-plantations", common in North America, (Gilbertson)

Habitat and Range

SIMILAR SPECIES
Fruiting bodies are tougher than most Antrodia species and may be confused with flat fruiting bodies of Heterobasidion annosum which has a more distinct margin and differs microscopically (Gilbertson). B. serialis differs from past or present Antrodia species also in the spores: Resinoporia ferox has similar fusoid spores, but R. ferox has smaller pores, grows on juniper, and produces conspicuous mycelial felts in the decayed wood, (Gilbertson). Antrodia variiformis has larger spores measuring 8-12 x 3.0-4.5 microns (Ginns). Antrodia albida also has pores 2-3 per mm and when on conifers can be similar to A. serialis but A. albida has wider spores (Ginns). Antrodia oleracea can be confusingly similar to fruitbodies of A. serialis that are growing on hardwoods, but in A. oleracea, "skeletal hyphae are rare in the trama", (Ginns). Antrodia serialiformis Kout & Vlasak, was described in 2009 from the eastern US: it has spores 4.5-5.5(6) x 2-2.3(2.5) microns and grows on oak, (Kout(1)). See also SIMILAR section of Brunneoporus malicola.
Habitat
annual to biennial, on dead conifers, also common on some hardwoods, especially aspen; causes a brown cubical rot, (Gilbertson), all year (Buczacki), "often grows on the end of cut logs, from which it is practically impossible to remove except in small pieces", (Ginns)

Synonyms

Synonyms and Alternate Names:
Battarrea stevenii (Libosch.) Fr.
Polyporus serialis Fr.