Fungalpedia – Note 3178, Deconica
Deconica (W.G. Sm.) P. Karst., Bidr. Känn. Finl. Nat. Folk: xxvi, 515 (1879).
Citation when using this data: Jian Ma et al. 2024 – Fungalpedia.
Index Fungorum, Faceoffungi, MycoBank, GenBank, Fig 1.
Classification: Kuehneromycetaceae, Agaricales, Agaricomycetidae, Agaricomycetes, Agaricomycotina, Basidiomycota, Fungi.
Notes: Pseudohelicomyces albus was initially described by Valenzuela and Garnica (2000) based on its hyaline, cylindrical arthroconidia produced on spiral vegetative hyphae or spiral, branched conidiophores. The culture of this species was obtained from the tissue of Psilocybe merdaria grown on pasteurised straw of Triticum aestivum (Valenzuela and Garnica 2000). Pseudohelicomyces albus is morphologically similar to Helicomyces spp. by having cochleate conidia (Goos 1985a), but differs in having clamp connections in cultures from basidiomata (Valenzuela and Garnica 2000). Subsequently, Noordeloos (2009) proposed reassigning non-hallucinogenic species of the traditional Psilocybe to Deconica, and accepted Pseudohelicomyces albus as Deconica merdaria.
Type species: Deconica bullacea (Bull.) Fr. (1821).
Other accepted species: Species Fungorum – search Deconica.
Figure 1 – (a) Troposporopsis atroapicis (redrawn from Seifert et al. (2011)); (b) Hobsonia mirabilis (redrawn from Seifert et al. (2011)); (c) Vanbeverwijkia spirospora (redrawn from Seifert et al. (2011)); (d) Deconica merdaria (redrawn from Valenzuela and Garnica (2000), a cultured on MEA from the basidiome produces monokaryotic arthroconidia from dikaryotichyphae. b Basidiosporesen masse germinate to produce basidiocarps. Scale bars: a, b = 10 μm.
References
Goos R. 1985a – A review of the anamorph genus Helicomyces. Mycologia 77(4):606–618.
Entry by
Jian Ma, School of Food and Pharmaceutical Engineering, Guizhou Institute of Technology, Guiyang 550003, P.R. China, Center of Excellence in Fungal Research, Mae Fah Luang University, Chiang Rai 57100, Thailand, School of Science, Mae Fah Luang University, Chiang Rai, 57100, Thailand.
Published online 18 September 2026