Irpex lacteus

Irpex lacteus
Scientific classification
Kingdom:	Fungi
Division:	Basidiomycota
Class:	Agaricomycetes
Order:	Polyporales
Family:	Irpicaceae
Genus:	Irpex
Species:	I. lacteus
Binomial name
Irpex lacteus (Fr.) Fr. (1828)

Irpex lacteus is a common crust fungus distributed throughout temperate areas of the world. It is the type of the genus Irpex . Irpex lacteus is considered a polypore, but depending on growth conditions it can also produce a hydnoid hymenophore. Due to this variability and abundance of the species it has been described as a new species to science numerous times and subsequently has an extensive synonymy. The complete genome sequence of Irpex lacteus was reported in 2017. ^[1]

Irpex lacteus is a white-rot fungus that inhabits mainly angiosperm branches and trunks. ^[2] It is one of the most common wood-rotting fungi for instance in urban North America. It is inedible. ^[3] The fungus has been identified as a cause of pulmonary infections in immuno-compromised humans. ^[4]

Infested, of possible Irpex lacteus growth on a deceased section of a cherry tree.

Taxonomy

The fungus was first described in 1818 by Elias Magnus Fries, who called it Sistotrema lacteum. ^[5] Fries later made it the type species of the genus Irpex in 1828. ^[6]

Synonyms

• Boletus cinerascensSchwein. (1822)
• Boletus tulipiferaeSchwein. (1822)
• Coriolus lacteus(Fr.) Pat. (1900)
• Coriolus tulipiferae(Schwein.) Pat. (1900)
• Daedalea diabolicaSpeg. (1889)
• Hirschioporus lacteus(Fr.) Teng (1963)

Irpex lacteus
Mycological characteristics
	Hymenium attachment is not applicable
	Lacks a stipe
	Ecology is saprotrophic
	Edibility is inedible

• Hydnum lacteum(Fr.) Fr. (1823)
• Irpex bresadolaeSchulzer (1885)
• Irpex diabolicus(Speg.) Bres. (1919)
• Irpex hirsutusKalchbr. (1878)
• Irpex lacteus f. sinuosus(Fr.) Nikol. (1953)
• Irpex pallescensFr. (1838)
• Irpex sinuosusFr. (1828)
• Irpiciporus lacteus(Fr.) Murrill (1907)
• Irpiciporus tulipiferae(Schwein.) Murrill (1905)
• Microporus chartaceus(Berk. & M.A.Curtis) Kuntze, (1898)
• Microporus cinerascens(Schwein.) Kuntze (1898)
• Polyporus chartaceusBerk. & M.A.Curtis (1849)
• Polyporus tulipiferae(Schwein.) Overh. [as 'tulipiferus'], (1915)
• Polystictus bresadolae(Schulzer) Sacc. (1888)
• Polystictus chartaceus(Berk. & M.A.Curtis) Cooke, (1886)
• Polystictus cinerascens(Schwein.) Cooke (1886)
• Polystictus cinerescens(Schwein.) Cooke
• Polystictus tulipiferae(Schwein.) Cooke (1886)
• Poria cincinnatiBerk. ex Cooke, (1886)
• Poria tulipiferae(Schwein.) Cooke, (1888)
• Sistotrema lacteumFr. (1818)
• Steccherinum lacteum(Fr.) Krieglst. (1999)
• Trametes lactea(Fr.) Pilát (1940)
• Xylodon bresadolae(Schulzer) Kuntze (1898)
• Xylodon hirsutus(Kalchbr.) Kuntze (1898)
• Xylodon lacteus(Fr.) Kuntze (1898)
• Xylodon pallescens(Fr.) Kuntze (1898)
• Xylodon sinuosus(Fr.) Kuntze (1898)

References

1. Yao, Mengwei; Li, Wenman; Duan, Zihong; Zhang, Yinliang; Jia, Rong (2017). "Genome sequence of the white-rot fungus Irpex lacteus F17, a type strain of lignin degrader fungus". Standards in Genomic Sciences. 12 (8): 400–3. doi: 10.1186/s40793-017-0267-x . PMC   5596461 . PMID   5596461.
2. Gilbertson RL, Ryvarden L (1986) North American polypores 1, Abortiporus to Lindtneria. Oslo, Fungiflora.
3. Phillips, Roger (2010). Mushrooms and Other Fungi of North America. Buffalo, NY: Firefly Books. p. 324. ISBN   978-1-55407-651-2.
4. Multiple (2005). "The Polypore Mushroom Irpex lacteus, a New Causative Agent of Fungal Infections". Journal of Clinical Microbiology. 43 (4). American Society for Microbiology: 2009–2011. doi:10.1128/JCM.43.4.2009-2011.2005. PMC   1081321 . PMID   15815046.
5. Fries, E.M. (1818). Observationes mycologicae (in Latin). Vol. 2. p. 266.
6. Fries, E.M. (1828). Elenchus Fungorum (in Latin). Vol. 1. p. 145.