Biology:Leucocoprinus ianthinus

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Short description: Species of fungus

Leucocoprinus ianthinus
Leucocoprinus ianthinus.jpg
Scientific classification edit
Domain: Eukaryota
Kingdom: Fungi
Division: Basidiomycota
Class: Agaricomycetes
Order: Agaricales
Family: Agaricaceae
Genus: Leucocoprinus
Species:
L. ianthinus
Binomial name
Leucocoprinus ianthinus
(Sacc) P.Mohr (1994)
Synonyms[1]

Agaricus ianthinus Cooke (1888)
Lepiota ianthina Sacc (1891)
Lepiota lilacinogranulosa Henn. (1898)
Hiatula cepistipes var. lilacinogranulosa R. Heim & Romagn(1934)
Leucocoprinus lilacinogranulosus Locq. (1943)
Leucocoprinus ianthinus Locq. (1945)
Leucocoprinus lilacinogranulosus var. subglobisporus D.A. Reid (1989)
Leucocoprinus ianthinus var. subglobisporus Blanco-Dios (1989)

Leucocoprinus ianthinus is a species of mushroom producing fungus in the family Agaricaceae.[2][3] Like other Leucocoprinus species it may have originated in a tropical climate but now finds a home in plant pots, greenhouses and compost piles in many countries. Despite a widespread distribution it is seldom recorded and appears to be rarer than other Leucocoprinus species.[4] It is not seen in plant pots with the same kind of regularity as the well known Leucocoprinus birnbaumii.

Leucocoprinus ianthinus
View the Mycomorphbox template that generates the following list
Mycological characteristics
gills on hymenium
cap is campanulate or umbonate
hymenium is free
stipe has a ring
spore print is white
ecology is saprotrophic
edibility: unknown

Taxonomy

It was first described in 1888 by the English botanist and mycologist Mordecai Cubitt Cooke who classified it as Leucocoprinus ianthinus based on specimens collected in the hothouses of Kew Gardens (London, England) in 1888.[5][6] In 1891 the Italian mycologist Pier Andrea Saccardo reclassified this as Lepiota ianthinus or Lepiota janthina in the original text.[7] It was reclassified as Leucocoprinus ianthinus in 1945 by Marcel Locquin.[8]

An additional basionym was classified as Lepiota lilacinogranulosa or Lepiota lilacino-granulosa by the German mycologist Paul Christoph Hennings in 1898.[9] In 1934 the French botanists and mycologists Roger Heim and Henri Romagnesi reclassified it as a variant of Hiatula cepaestipes (now known as Leucocoprinus cepistipes).[10] The species was reclassified as Leucocoprinus lilacinogranulosa by Locquin in 1943[11] however this is now also recognised as a synonym of Leucocoprinus ianthinus.

Description

Leucocoprinus ianthinus is a small dapperling mushroom with thin white flesh.

Cap: 1.5-7cm. Starts ovate/hemispherical before becoming campanulate (bell shaped) with a distinct umbo that displays brown or slightly lilac scales/down against the white cap. Pronounced grooves run to the edge of the cap, which is usually curled upwards. The curling of the edges may become especially noticeable as the mushrooms dry out. Stem: 3.5-7cm. Tapers upwards from a slightly swollen base as seen in other Leucocoprinus species. Presents with an annulus but may quickly disappear as the mushroom grows. Lilac fibres may be present at base. Gills: White, discolouring to slightly lilac. Spacing varies from distant to crowded, attachment to the stipe is free. Spore print: White-pale lilac. Spores: Ellipsoid to almond shaped, smooth with a narrow germ pore. Dextrinoid. 9.5-10.5 x 6.5-7 μm. Taste: astringent and strong. Smell: Mushroomy.[12]

Similar species

  • Leucocoprinus brebissonii also occurs in plant pots and can appear quite similar. The cap scales may appear slightly more purple brown on L. ianthinus.
  • Leucocoprinus heinemannii and some related, possibly yet unclassified, species appear similar but may have darker almost black scales.
  • Leucocoprinus lilacinogranulosus[13] is considered a synonym for L. ianthinus however some sources suggest they may be separate species and discuss the presence of it in plant pots in Poland.[14]

References

  1. ↑ "GSD Species Synonymy: Leucocoprinus ianthinus (Sacc.) P. Mohr". Species Fungorum. CAB International. http://www.speciesfungorum.org/Names/GSDSpecies.asp?RecordID=436693. Retrieved 2022-07-06. 
  2. ↑ "Species fungorum - Leucocoprinus ianthinus (Sacc.) P. Mohr, Boletus 18(2): 48 (1994)". http://www.speciesfungorum.org/Names/GSDSpecies.asp?RecordID=436693. 
  3. ↑ "Mycobank Database - Leucocoprinus ianthinus". https://www.mycobank.org/page/Name%20details%20page/name/Leucocoprinus%20ianthinus. 
  4. ↑ "Leucocoprinus ianthinus (Sacc.) P.Mohr" (in en). https://www.gbif.org/species/2535629. 
  5. ↑ Cooke, M. C.; Massee, George (1887-1888). "New British Fungi". Grevillea (London: Williams and Norgate) 16: 101. https://www.biodiversitylibrary.org/item/188031#page/107/mode/1up. 
  6. ↑ Gierczyk, Błażej; Dubiel, Grzegorz (2014-06-30). "Leucocoprinus lilacinogranulosus (Henn.) Locq. in Poland" (in en). Acta Mycologica 49 (1): 59–67. doi:10.5586/am.2014.005. ISSN 2353-074X. https://pbsociety.org.pl/journals/index.php/am/article/view/am.2014.005. 
  7. ↑ Saccardo, P. A.; Traverso, G. B.; Trotter, A. (1891). Sylloge fungorum omnium hucusque cognitorum. 9. Patavii: sumptibus auctoris. p. 10. https://www.biodiversitylibrary.org/item/25386. 
  8. ↑ Locquin, Marcel (1945). "Notes sur les Lépiotes II (suite)". Publications de la Société Linnéenne de Lyon 14 (5): 94. doi:10.3406/linly.1945.13215. https://www.persee.fr/doc/linly_0366-1326_1945_num_14_5_13215. 
  9. ↑ Hennings, P. (1898). "Die in den Gewächshäusern des Berl. bot. Gartns beobachteten Pilze.". Verhandlungen des Botanischen Vereins für die Provinz Brandenburg (Berlin: Kommissions-Verlag von R. Gaertner) 40: 145. https://www.biodiversitylibrary.org/item/105274#page/301/mode/1up. 
  10. ↑ Heim, Roger; Romagnesi, Henri (1934). "Sur Quelques Agarics de la Flore Française". Bulletin trimestriel de la Société mycologique de France 50: 184. https://gallica.bnf.fr/ark:/12148/bpt6k3209760j/f188.item. 
  11. ↑ Locquin, Marcel (1943). "Étudie du développement des spores du genre Leucocoprinus Pat, (Troisième Partie) suivie de la description d'une espèce nouvelle et d'une espèce critique". Publications de la Société Linnéenne de Lyon 12 (6): 95. doi:10.3406/linly.1943.9747. https://www.persee.fr/doc/linly_0366-1326_1943_num_12_6_9747. 
  12. ↑ Buczacki, Stefan (2012). Collins fungi guide. London: Collins. ISBN 978-0-00-724290-0. OCLC 793683235. https://www.worldcat.org/oclc/793683235. 
  13. ↑ "Species Fungorum - Leucocoprinus lilacinogranulosus (Henn.) Locq., Bull. mens. Soc. linn. Soc. Bot. Lyon 12(6): 95 (1943)". http://www.speciesfungorum.org/Names/NamesRecord.asp?RecordID=287735. 
  14. ↑ Gierczyk, Błażej; Dubiel, Grzegorz (2014-06-30). "Leucocoprinus lilacinogranulosus (Henn.) Locq. in Poland" (in en). Acta Mycologica 49 (1): 59–67. doi:10.5586/am.2014.005. ISSN 2353-074X. https://pbsociety.org.pl/journals/index.php/am/article/view/am.2014.005. 

Wikidata ☰ Q10561626 entry




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