Psilocybe_montana

<i>Deconica montana</i>

Deconica montana

Species of fungus

Quick Facts Deconica montana, Scientific classification ...
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Deconica montana, commonly known as the mountain moss Psilocybe, is a common species of mushroom that usually grows in mossy and montane regions around the world. The appearance is that of a typical "little brown mushroom" with a small, brown cap and a straight, thin stipe.

Taxonomy

Psilocybe montana was formerly the type species of the mushroom genus Psilocybe.[1] Because it does not contain hallucinogenic tryptamine derivatives like psilocybin or psilocin,[2][3] it does not stain blue when handled, unlike other typical hallucinogenic members of this genus. Molecular studies in the late 2000s revealed that the genus was polyphyletic and consisted of two distinct clades separating the blueing species from the non-blueing species.[4][5][6] Dividing the genus is problematic as the name Psilocybe was attached to P. montana and consequently to the non-blueing clade, leaving the hallucinogenic species without a generic name. Because the name is widely associated with the hallucinogenic species and considering the potential legal ramifications of changing their generic name, a proposal was made to conserve the name Psilocybe with P. semilanceata as the type. This left Deconica available as a name for the non-blueing species.[7] The proposal was unanimously accepted by the Nomenclature Committee for Fungi in 2009.[8]

Description

The cap is 0.5–1.5 cm in diameter, initially convex in shape but flattening in age, sometimes with a broad umbo. The cap is moist, glabrous, hygrophanous, and has radial striations to the center; the color is reddish-brown[9] to dark-brown. The gills are adnate to broadly adnate or sometimes very shortly decurrent, and of the same color as the cap. The stipe is 1.5–4 cm long, 1–2 mm thick, smooth, the same color as the cap, and brittle. Spores are typically 7.5–10 × 6–8 × 5–5.5 μm and ovate–lentiform in shape with a thickened wall.[10] A large spored variety (spore dimensions of 8.5–11 × 6.0–8.5 × 5.0–7.0 μm), Psilocybe montana var. macrospora Noordel. & Verduin (1999), has also been reported from the Netherlands.[11] The spore print is dark greyish brown.[12]

It is listed as inedible,[13] being too small to be of interest.[9]

Habitat

Deconica montana is saprobic, possibly also parasitic. It is often associated with mosses such as Brachythecium albicans, B. mutabulum, Campylopus introflexus, Ceratodon purpureus, Dicranum scoparium, Eurhynchium hians, E. praelongum, E. speciosum, Rhacomitrium canescens, Pohlia species or Polytrichum piliferum.[14] It is commonly found in exposed situations such as dune-meadows, heaths and tree-less tundra, and open Pinus forests, usually on nutrient-poor, well-drained soil.[15]

  • Deconica montana on moss.
  • Deconica montana

Distribution

The species has a worldwide, almost cosmopolitan distribution and has been reported from a variety of regions in a wide range of climates, including:

They have also been reported growing in Chemnitz, Germany, on vegetation-covered flat roofs.[28]

References

  1. [1]
    Singer, R. (1975). The Agaricales in Modern Taxonomy. J. Cramer, Vaduz. 912 p.
  2. [2]
    Salazar, F.; Marcano, V.; Castellano, F.; Martinez, L.; Morales, A. (1994). "Chemical and microstructural study of the genus Psilocybe (Agaricales) in the Venezuelan Andes: Part I. Psilocybe montana (Pers. ex Fr.) Kummer". Ernstia. 4 (1–2): 11–19.
  3. [3]
    Marcano, V.; Morales Méndez, A.; Castellano, F.; Salazar, F. J.; Martinez, L. (July 1994). "Occurrence of psilocybin and psilocin in Psilocybe pseudobullacea (Petch) Pegler from the Venezuelan Andes". Journal of Ethnopharmacology. 43 (2): 157–9. doi:10.1016/0378-8741(94)90013-2. PMID 7967656.
  4. [4]
    Moncalvo JM, Vilgalys R, Redhead SA, et al. (2002). "One hundred and seventeen clades of euagarics". Molecular Phylogenetics and Evolution. 23 (3): 357–400. doi:10.1016/S1055-7903(02)00027-1. PMID 12099793.
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    Nugent KG, Saville BJ (2004). "Forensic analysis of hallucinogenic fungi: a DNA-based approach". Forensic Science International. 140 (2–3): 147–157. doi:10.1016/j.forsciint.2003.11.022. PMID 15036436.
  6. [6]
    Matheny PB, Curtis JM, Hofstetter V, et al. (2006). "Major clades of Agaricales: a multilocus phylogenetic overview". Mycologia. 98 (6): 982–995. doi:10.3852/mycologia.98.6.982. PMID 17486974.
  7. [7]
    Redhead SA, Moncalvo JM, Vilgalys R, Matheny PB, Guzmán-Dávalos L, Guzmán G (2005). "(1757) Proposal to conserve the name Psilocybe (Basidiomycota) with a conserved type" (PDF). Taxon. 56 (1): 255–257.
  8. [8]
    Norvell L. (2009). "Report of the Nomenclature Committee for Fungi: 15" (PDF). Mycotaxon. 110: 487–492. doi:10.5248/110.487. Archived from the original (PDF) on 2012-03-31.
  9. [9]
    Trudell, Steve; Ammirati, Joe (2009). Mushrooms of the Pacific Northwest. Timber Press Field Guides. Portland, OR: Timber Press. p. 208. ISBN 978-0-88192-935-5.
  10. [10]
    Miller, O. K. Jr.; Laursen, G. A.; Farr, D. F. (1982). "Notes on Agaricales from Arctic Tundra in Alaska". Mycologia. 74 (4): 576–591. doi:10.2307/3792745. JSTOR 3792745.
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    Bas, Cornelis (1988). Flora agaricina Neerlandica: critical monographs on families of agarics and boleti occurring in the Netherlands. Rotterdam: A.A. Balkema. ISBN 978-90-5410-492-6.
  12. [12]
    Gastón Guzmán (1983). The genus Psilocybe: a systematic revision of the known species including the history, distribution and chemistry of the hallucinogenic species. Berlin: J. Cramer. ISBN 978-3-7682-5474-8.
  13. [13]
    Phillips, Roger (2010). Mushrooms and Other Fungi of North America. Buffalo, NY: Firefly Books. p. 230. ISBN 978-1-55407-651-2.
  14. [14]
    Lamoure, D. (1977). "Agaricales de la zone alpine. Psilocybe chionophila, sp. nov". Bull. Soc. Linn. Lyon. 46: 213–217.
  15. [15]
    "Psilocybe montana page". www.entoloma.nl. Archived from the original on 2004-05-30.
  16. [16]
    Parker-Rhodes, A. F. (1953). "The Basidiomycetes of Thetford Chase. I. Correlation with age of plantation". New Phytologist. 52 (1): 65–70. doi:10.1111/j.1469-8137.1953.tb05206.x.
  17. [17]
    Wood, M.; Stevens, F. "California Fungi - Psilocybe".
  18. [18]
    Guzmán, G.; Tapia, F.; Ramírez-Guillén, F.; Baroni, T. J.; Lodge, D. J; Cantrell, S. A.; Nieves-Rivera, A. M. (2003). "New species of Psilocybe in the Caribbean, with an emendation of P. guilartensis". Mycologia. 95 (6): 1171–1180. doi:10.2307/3761918. JSTOR 3761918. PMID 21149019.
  19. [19]
    Zang, M.; Xia, Y. (1989). "Notes on the fungi from Western Kunlun Mountains China". Acta Botanica Yunnanica. 11 (4): 397–406.
  20. [20]
    Nieves-Rivera, A. M.; Flores, Santos; Betancourt, C. (1997). "Notes on the Agaricales of the high plains of Guasca, Cundinamarca Department, Colombia". Caldasia. 19 (1–2): 349–51.
  21. [21]
    Lange, M. (1955). Macromycetes Part II, Greenland Agaricales. Meddel. Grønland. 147:1–69.
  22. [22]
    Guzman, G.; Varela, L.; Ortiz, J. P. (1977). "The known non-hallucinogenic species of Psilocybe in Mexico" (PDF). Boletin de la Sociedad Mexicana de Micologia. 11: 23–24. Archived (PDF) from the original on 2012-09-24.
  23. [23]
    Guzman, G.; Kasuya, T. (2004). "The known species of Psilocybe (Basidiomycotina, Agaricales, Strophariaceae) in Nepal". Mycoscience. 45 (4): 295–297. doi:10.1007/s10267-004-0186-8. S2CID 84817545.
  24. [24]
    Hoiland, K. (1978). "The genus Psilocybe in Norway". Nordic Journal of Botany. 25 (2): 111–122.
  25. [25]
    Favre, J. (1955). Les champignons supérieurs de la zone alpine du Parc National Suisse. Vol. 5. Druck Ludin AG. Liestal, Switzerland. pp. 1–212.
  26. [26]
    Favre, J. (1960). Catalogue descriptif des champignons supérieurs de la zone subalpine du Parc National Suisse. Vol. 6. Druck Ludin AG. Liestal, Switzerland. pp. 323–610.
  27. [27]
    Urbonas, V. A. (1978). "The taxonomy and range of fungi of the family Strophariaceae in the USSR. Part 3. The genus Psilocybe". Lietuvos TSR Mokslu Akademijos Darbai Serija C Biologijos Mokslai. 1: 9–18.
  28. [28]
    Berthold, S.; Otto, P. (2005). "Studies of diversity and habitat preference of fungi and lichens on vegetation-covered flat roofs in Chemnitz (Saxony)". Boletus. 28 (1): 37–47.

Further reading

  • Stamets P. (1996). Psilocybin mushrooms of the world. Ten Speed Press, Berkeley, CA, USA. 245 pp. (p. 132)
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