Big Smoky Bracket
Bjerkandera fumosa (Pers.) P. Karst.
Big Smoky Bracket: https://marylandbiodiversity.com/species/21489
Synonyms
Polyporus fumosus 
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2 Records

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Source: Wikipedia

Bjerkandera fumosa
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Fungi
Division: Basidiomycota
Class: Agaricomycetes
Order: Polyporales
Family: Meruliaceae
Genus: Bjerkandera
Species:
B. fumosa
Binomial name
Bjerkandera fumosa
(Pers.) P.Karst. (1879)
Synonyms
  • Boletus fumosus Pers. (1801)

Bjerkandera fumosa is a species of poroid fungus in the family Meruliaceae.

Taxonomy

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It was first described to science as Boletus fumosus by Christiaan Hendrik Persoon in 1801.[1] Petter Adolf Karsten transferred the species to the genus Bjerkandera in 1879.[2]

Description

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The form of Bjerkandera fumosa fruit bodies ranges from effused-reflexed (spread out over the substrate and turned back at the margin to form a cap) or cap-like, but attached directly to the substrate without a stipe. These caps can be solitary or closely overlapping, and are often fused with neighbouring caps. The caps typically measure 5–10 cm (2.0–3.9 in) wide by 2 cm (0.8 in) wide, and a buff-coloured upper surface with a texture ranging from finely hairy (tomentose) to smooth. The pores on the cap underside are circular to angular, numbering 2–5 per millimetre.[3]

Bjerkandera fumosa has a monomitic hyphal system, containing only generative hyphae. The basidia are club-shaped, measuring 20–22 μm. Spores have the shape of short cylinders, and measure 5.5–7 by 2.5–3.5 μm. They are smooth, hyaline, and do not react with Melzer's reagent.[3]

Habitat and distribution

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Bjerkandera fumosa causes a white rot in various hardwood species. It has a circumboreal distribution in the Northern Hemisphere.[3]

References

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  1. ^ Persoon, C.H. (1801). Synopsis methodica fungorum (in Latin). Göttingen: Apud Henricvm Dieterich. p. 530.
  2. ^ Karsten, P.A. (1879). "Symbolae ad mycologiam Fennicam. VI". Meddelanden Af Societas Pro Fauna et Flora Fennica (in Latin). 5: 15–46.
  3. ^ a b c Ryvarden, Leif; Melo, Ireneia (2014). Poroid Fungi of Europe. Synopsis Fungorum. Vol. 31. Oslo, Norway: Fungiflora. pp. 116–117. ISBN 978-8290724462.