Neofavolus

Neofavolus is a genus of four species of polypore fungi in the family Polyporaceae. All four known species of Neofavolus are known from temperate regions and unknown from the tropics. Neofavolus alveolaris, the type species, is widely distributed in the temperate areas of the Northern Hemisphere, while N. cremeoalbidus and N. mikawai are known only from limited areas of eastern Asia.[1] The most recent addition to the genus (transferred from Lentinus), N. suavissimus, is found in North America, Europe, and Japan.[2]

Neofavolus
Neofavolus alveolaris
Scientific classification
Kingdom:
Fungi
Division:
Basidiomycota
Class:
Agaricomycetes
Order:
Polyporales
Family:
Polyporaceae
Genus:
Neofavolus

Sotome & T.Hatt. (2012)
Type species
Neofavolus alveolaris
(DC.) Sotome & T.Hatt. (2012)
Species

N. alveolaris
N. cremeoalbidus
N. mikawai
N. suavissimus

Description

The fruit bodies of Neofavolus species are annual, and have a cylindrical stipe that is usually laterally situated. Their caps are kidney-shaped to semicircular, circular in centrally stipitate specimens. The cap surface is either covered with flatted scales or is smooth, azonate, white to cream or brownish. The context, which is up to 1 cm thick, ranges from fleshy-tough to leathery when fresh, to brittle or corky to leathery in dried specimens. Pores on the underside of the cap vary in size, but are typically diamond shaped and may be elongated radially.[1] N. suavissimus is the single Neofavolus fungus with a hymenium featuring gills rather than pores.[2]

N. suavissimus

Neofavolus has a dimitic hyphal system, with both generative and the more predominant skeletal-binding hyphae. The generative hyphae have clamp connections. Skeletal-binding hyphae are arboriform, and hyaline. The cap cuticle comprises a cutis made of hyaline to brown agglutinated and parallel generative hyphae. These are distinct from the contextual hyphae, which largely comprise non-agglutinated skeletal-binding hyphae. The basidia are club-shaped, with four sterigmata. Spores of Neofavolus fungi are cylindrical, thin-walled, smooth, hyaline, and non-amyloid.[1]

Species

References
  1. Sotome, Kozue; Akagi, Yasunori; Lee, Su See; Ishikawa, Noemia K.; Hattori, Tsutomu (2013). "Taxonomic study of Favolus and Neofavolus gen. nov. segregated from Polyporus (Basidiomycota, Polyporales)". Fungal Diversity. 58 (1): 245–266. doi:10.1007/s13225-012-0213-6. S2CID 11066884.
  2. Seelan, Jaya Seelan Sathiya; Justo, Alfredo; Nagy, Laszlo G.; Grand, Edward A.; Redhead, Scott A.; Hibbet, David (2015). "Phylogenetic relationships and morphological evolution in Lentinus, Polyporellus and Neofavolus, emphasizing southeastern Asian taxa". Mycologia. 107 (3): 460–474. doi:10.3852/14-084. PMID 25661717. S2CID 20868497.
  3. Sotome, Kozue; Akagi, Yasunori; Lee, Su See; Ishikawa, Noemia K.; Hattori, Tsutomu (2016). "Nomenclatural novelties" (PDF). Index Fungorum. 313: 1. ISSN 2049-2375.
  4. Seelan, Jaya Seelan; Justo, Alfredo; Nagy, László G.; Grand, Edward A.; Redhead, Scott A.; Hibbett, David S. (2016). "Nomenclatural novelties" (PDF). Index Fungorum. 308: 1. ISSN 2049-2375.
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