Fomes

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Fomes is a genus of perennial woody fungi in the family Polyporaceae. Species are typically hoof-shaped (ungulate). New growth each season is added to the margin, resulting in a downward extension of the hymenium.[1] This often results in a zonate appearance of the upper surface, that is, marked by concentric bands of color.

The name comes from Latin fomes, meaning "tinder",[2] from the use of Fomes fomentarius, also known as the tinder fungus, in making tinder (see amadou).[citation needed]

Taxonomy

Fomes was first introduced by Elias Magnus Fries as a subgenus of Polyporus in his 1836 work Genera Hymenomycetum. He promoted it to generic status in 1849.[3]

Description

Fomes species have perennial, hoof-shaped fruit bodies that attach directly to their substrate without a stipe. The cap surface has a hard smooth crust that ranges in colour from gray to blackish. On the underside of the cap, the pore surface is pale brown with small pores, and brown tube layers. The tough and fibrous context is pale brown. The fruit body becomes stratified after multiple years of growth. Fomes has a trimitic hyphal system, containing generative, skeletal, and binding hyphae. The generative hyphae have clamp connections, while binding and skeletal hyphae have pale brownish pigment that appears when they are mounted in a solution of potassium hydroxide. The cystidioles are fusoid, imbedded, or project somewhat. The basidia (spore-bearing cells) are club-shaped with a basal clamp, and have four sterigmata. The spores are cylindric, large, hyaline and smooth, and are non-reactive to Melzer's reagent.[4]

Species

As of June 2017, Index Fungorum accepts 59 species of Fomes:[5]

File:Unidentified Fungus 8789.jpg
Fomes hemitephrus photographed in Tasmania

References

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  1. ^ Page Module:Citation/CS1/styles.css has no content.Orr, D.B.; Orr, R.T. (1980). Mushrooms of Western North America. California Natural History Guides. Berkeley, California: University of California Press. p. 78. ISBN 978-0-520-03660-4.
  2. ^ Page Module:Citation/CS1/styles.css has no content.Donk, M.A. (1960). "The generic names proposed for Polyporaceae". Persoonia. 1 (2): 173–302.
  3. ^ Page Module:Citation/CS1/styles.css has no content.Fries, E.M. (1849). Summa vegetabilium Scandinaviae (in Latin). Vol. 2. p. 319.{{cite book}}: CS1 maint: unrecognized language (link)
  4. ^ Page Module:Citation/CS1/styles.css has no content.Ryvarden, Leif (2014). Poroid Fungi of Europe. Synopsis Fungorum. Vol. 31. Oslo, Norway: Fungiflora. p. 177. ISBN 978-8290724462.
  5. ^ Page Module:Citation/CS1/styles.css has no content.Kirk, P.M. "Species Fungorum (version 29th May 2017). In: Species 2000 & ITIS Catalogue of Life". Retrieved 12 June 2017.[permanent dead link]

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