Dissoderma paradoxum

{{Speciesbox

| image =

| image_caption =

| genus = Dissoderma

| species = paradoxum

| authority = (A.H.Sm. & Singer) Singer (1973)

| synonyms =Cystoderma paradoxum A.H.Sm. & Singer (1948)

Squamanita paradoxa (A.H.Sm. & Singer) Bas (1965)

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Dissoderma paradoxum, which has the recommended English name of powdercap strangler in the UK, 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. 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.{{Cite book |last=Sterry |first=Paul |title=Collins Complete Guide to British Mushrooms & Toadstools |last2=Hughes |first2=Barry |publisher=HarperCollins |year=2009}} 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. Cornelis Bas transferred the species to the genus Squamanita in 1965. 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. The species occurs in both North America and Europe.

References

{{Reflist|colwidth=30em|refs=

{{cite journal |author=Bas C. |title=The genus Squamanita |journal=Persoonia |year=1965 |volume=3 |pages=331–59}}

{{cite web |author=Holden L. |url=https://www.britmycolsoc.org.uk/resources/english-names/ |title=English names for fungi 2022 |date=April 2022 |publisher=British Mycological Society |accessdate=2023-06-02}}

{{cite journal |vauthors=Saar I, Thorn RG, Nagasawa E, Henkel TW, Cooper JA |title=A phylogenetic overview of Squamanita, with descriptions of nine new species and four new combinations |journal=Mycologia |year=2022 |volume=114 |issue=4 |pages=769–797 |doi=10.1080/00275514.2022.2059639|pmid=35695889 |s2cid=249623155 |url=https://figshare.com/articles/dataset/A_phylogenetic_overview_of_i_Squamanita_i_with_descriptions_of_nine_new_species_and_four_new_combinations/20060684 |url-access=subscription }}

{{cite journal |author=Singer R. |title=Diagnoses fungorum novorum Agaricalium III |journal=Beihefte zur Sydowia |year=1973 |volume=7 |pages=1–106 (see p. 69)}}

{{cite journal |author=Smith AH, Singer R. |title=Notes on the genus Cystoderma |journal=Mycologia |year=1948 |volume=40 |issue=4 |pages=454–60 |url=http://www.cybertruffle.org.uk/cyberliber/59350/0040/004/0454.htm |doi=10.2307/3755152|jstor=3755152 |url-access=subscription }}

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Category:Fungi described in 1948

Category:Fungi of Europe

Category:Fungi of North America

Category:Taxa named by Alexander H. Smith

Category:Fungus species