Chrysothrix

Chrysothrix is a genus of lichen-forming fungi in the family Chrysothricaceae.[2] They are commonly called gold dust lichens or sulfur dust lichens,[3]: 253  because they are bright yellow to greenish-yellow, sometimes flecked with orange, and composed entirely of powdery soredia.[4] Apothecia are never present in North American specimens.[4]

Chrysothrix
Chrysothrix chlorina, Unteres Rannatal, Austria
Scientific classification
Kingdom: Fungi
Division: Ascomycota
Class: Arthoniomycetes
Order: Arthoniales
Family: Chrysotrichaceae
Genus: Chrysothrix
Mont. (1852)
Type species
Chrysothrix noli-tangere
(Mont.) Mont. (1852)
Synonyms[1]

They grow on bark or rocks, generally in shaded habitats.[4] They can sometimes be mistaken for sterile specimens of Chaenotheca, which usually has pinhead apothecia on tiny stalks, or Psilolechia, which usually has small, bright yellow apothecia.[4] Chrysothrix chlorina was traditionally used as a brown dye for wool in Scandinavia.[5]

Species
  • Chrysothrix bergeri LaGreca (2020)
  • Chrysothrix caesia (Flot.) Ertz & Tehler (2011)
  • Chrysothrix candelaris (L.) J.R.Laundon (1981)
  • Chrysothrix chamaecyparicola Lendemer (2010)
  • Chrysothrix chilensis D.Liu & J.-S Hur (2018)
  • Chrysothrix chlorina (Ach.) J.R.Laundon (1981)
  • Chrysothrix chrysophthalma (P.James) P.James & J.R.Laundon (1981)
  • Chrysothrix citrinella Aptroot & M.Cáceres (2017)
  • Chrysothrix flavovirens Tønsberg (1994)
  • Chrysothrix frischii Kalb (2001)
  • Chrysothrix galapagoana K.Knudsen & Bungartz (2013)
  • Chrysothrix granulosa G.Thor (1988)
  • Chrysothrix insulizans R.C.Harris & Ladd (2008)
  • Chrysothrix noli-tangere (Mont.) Mont. (1852)
  • Chrysothrix occidentalis Elix & Kantvilas (2007)
  • Chrysothrix oceanica Räsänen (1944)
  • Chrysothrix onokoensis (Wolle) R.C.Harris & Ladd (2008)
  • Chrysothrix palaeophila Kantvilas & Elix (2007)
  • Chrysothrix pavonii (Fr.) J.R.Laundon (1981)
  • Chrysothrix placodioides G.Thor (1988)
  • Chrysothrix septemseptata Jagad.Ram, Lumbsch, Lücking & G.P.Sinha (2006)
  • Chrysothrix susquehannensis Lendemer & Elix (2010)
  • Chrysothrix tchupalensis Elix & Kantvilas (2007)
  • Chrysothrix xanthina (Vain.) Kalb (2001)

References
  1. "Synonymy: Chrysothrix Mont., Annls Sci. Nat., Bot., sér. 3 18: 312 (1852)". Species Fungorum. Retrieved 27 October 2021.
  2. Wijayawardene, Nalin; Hyde, Kevin; Al-Ani, Laith Khalil Tawfeeq; Somayeh, Dolatabadi; Stadler, Marc; Haelewaters, Danny; et al. (2020). "Outline of Fungi and fungus-like taxa". Mycosphere. 11: 1060–1456. doi:10.5943/mycosphere/11/1/8.
  3. Field Guide to California Lichens, Stephen Sharnoff, Yale University Press, 2014, ISBN 978-0-300-19500-2
  4. Brodo, I. M., S. D. Sharnoff, and S. Sharnoff. 2001. Lichens of North America. Yale University Press: New Haven. ISBN 0-300-08249-5
  5. Uphof, J. C. T. 1959. Dictionary of Economic Plants. Hafner Publishing Co.: New York.
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