Biology:Xanthoconium

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Short description: Genus of fungi

Xanthoconium
Xanthoconium purpureum 60267.jpg
Xanthoconium purpureum
Scientific classification
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Genus:
Xanthoconium

Singer (1944)
Type species
Xanthoconium stramineum
(Murrill) Singer (1944)

Xanthoconium is a genus of bolete fungi in the family Boletaceae. It was circumscribed by mycologist Rolf Singer in 1944, who included Boletus affinis and what was then known as Gyroporus stramineus as the type species. These two species were part of the "strange group of species described by Murrill and Snell as white-spored Gyropori, and separated by the latter under the new generic name Leucogyroporus."[1] C.B. Wolfe described three species from the United States in 1987: X. chattoogaense, Xanthoconium montaltoense, and X. montanum.[2] (As of February 2015), the nomenclatural database Index Fungorum list seven species in Xanthoconium.[3]

The concept of Xanthoconium has been not fully described using molecular phylogenetic analysis, but it is clearly a distinct genus, apart from Boletus.[4] However, Xanthoconium separans was found to be more closely related to Boletus Sensu stricto than to Xanthoconium.[4]

Species

Image Scientific Name Taxon author Year Distribution
Xanthoconium affine (Peck) Singer 635704 2016-07-13.jpg Xanthoconium affine (Peck) Singer 1944 hardwood forests east of the Rocky Mountains, and in Mexico
Xanthoconium chattoogaense Wolfe 1987 Known only from the type locality, along a tributary of the Chattooga River in North Carolina.[2]
Xanthoconium fusciceps N.K. Zeng, Zhi Q. Liang & S. Jiang 2017 China
Xanthoconium montaltoense Wolfe 1987 Found in south-central Pennsylvania.[2]
Xanthoconium montanum Wolfe 1987 Found in Macon County, North Carolina, in Nantahala National Forest.[2]
Xanthoconium porophyllum G. Wu & Zhu L. Yang 2016 China
Xanthoconium purpureum Snell & E.A. Dick 638486.jpg Xanthoconium purpureum Snell & E.A.Dick 1962 eastern North America
Xanthoconium separans (Peck) Halling & Both 908614.jpg Xanthoconium separans (Peck) Halling & Both 1998 South Eastern United States
Xanthoconium sinense G. Wu, Y.Y. Cui & Zhu L. Yang 2016 China
Xanthoconium stramineum 251818.jpg Xanthoconium stramineum (Murrill) Singer 1944 eastern North America

References

  1. Singer R. (1944). "New genera of fungi. I". Mycologia 36 (4): 358–68. doi:10.2307/3754752. http://www.cybertruffle.org.uk/cyberliber/59350/0036/004/0358.htm. 
  2. 2.0 2.1 2.2 2.3 Wolfe CB Jr. (1987). "Studies in the genus Xanthoconium (Boletaceae). I. New species and a new combination". Canadian Journal of Botany 65 (10): 2142–6. doi:10.1139/b87-295. 
  3. Kirk PM.. "Species Fungorum (version 15th February 2015). In: Species 2000 & ITIS Catalogue of Life". http://www.catalogueoflife.org/col/browse/tree/id/22026485. 
  4. 4.0 4.1 "Phylogenetic overview of the Boletineae". Fungal Biology 117 (7–8): 479–511. 2013. doi:10.1016/j.funbio.2013.04.008. PMID 23931115. 

Wikidata ☰ Q2675513 entry