Dissoderma paradoxum

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Dissoderma paradoxum
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Kingdom: Fungi
Division: Basidiomycota
Class: Agaricomycetes
Order: Agaricales
Family: Squamanitaceae
Genus: Dissoderma
Species:
D. paradoxum
Binomial name
Dissoderma paradoxum
(A.H.Sm. & Singer) Singer (1973) [2]
Synonyms

Cystoderma paradoxumA.H.Sm. & Singer (1948) [3]
Squamanita paradoxa(A.H.Sm. & Singer) Bas (1965) [4]

Dissoderma paradoxum, which has the recommended English name of powdercap strangler in the UK, [5] is a species of fungus in the family Squamanitaceae. It is a parasitic fungus that grows on the fruit bodies of another fungus, Cystoderma amianthinum . [6] It takes over the host and replaces the cap and gills with its own but retains the original stipe, creating in effect a hybrid between the two. [7] The species was first described as Cystoderma paradoxum by American mycologists Alexander H. Smith and Rolf Singer in 1948, based on specimens collected in Mount Hood National Forest in Oregon. [3] Cornelis Bas transferred the species to the genus Squamanita in 1965. [4] Recent molecular research, based on cladistic analysis of DNA sequences, has however shown that the species does not belong in Squamanita sensu stricto but in the related genus Dissoderma. [6] The species occurs in both North America and Europe. [6]

References

  1. ↑ Gonçalves, S.C. (2025). "Squamanita paradoxa". IUCN Red List of Threatened Species . 2025 e.T125435415A125435690. doi: 10.2305/IUCN.UK.2025-1.RLTS.T125435415A125435690.en . Retrieved 28 October 2025.
  2. ↑ Singer R. (1973). "Diagnoses fungorum novorum Agaricalium III". Beihefte zur Sydowia. 7: 1–106 (see p. 69).
  3. 1 2 Smith AH, Singer R. (1948). "Notes on the genus Cystoderma" . Mycologia. 40 (4): 454–60. doi:10.2307/3755152. JSTOR   3755152.
  4. 1 2 Bas C. (1965). "The genus Squamanita". Persoonia. 3: 331–59.
  5. ↑ Holden L. (April 2022). "English names for fungi 2022". British Mycological Society . Retrieved 2023-06-02.
  6. 1 2 3 Saar I, Thorn RG, Nagasawa E, Henkel TW, Cooper JA (2022). "A phylogenetic overview of Squamanita, with descriptions of nine new species and four new combinations" . Mycologia. 114 (4): 769–797. doi:10.1080/00275514.2022.2059639. PMID   35695889. S2CID   249623155.
  7. ↑ Sterry, Paul; Hughes, Barry (2009). Collins Complete Guide to British Mushrooms & Toadstools. HarperCollins.
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