Biology:Tulosesus amphithallus

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Short description: Species of fungus

Tulosesus amphithallus
Coprinellus amphithallus.jpg
Scientific classification
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Species:
T. amphithallus
Binomial name
Tulosesus amphithallus
(A.H. Sm. & M. Lange) D. Wächt & A. Melzer (2020)
Synonyms

Coprinus amphithallus M. Lange & A.H. Sm. (1953)
Coprinellus amphithallus Redhead, Vilgalys, Moncalvo (2001)


Tulosesus amphithallus is a species of mushroom producing fungus in the family Psathyrellaceae.[1]

Taxonomy

It was first described by mycologists Morten Lange and Alexander H. Smith in 1953 and classified as Coprinus amphithallus.

In 2001 a phylogenetic study resulted in a major reorganization and reshuffling of that genus and this species was transferred to Coprinellus.[2]

The species was known as Coprinellus amphithallus until 2020 when the German mycologists Dieter Wächter & Andreas Melzer reclassified many species in the Psathyrellaceae family based on phylogenetic analysis.[3]

Description

The cap is 0.6 to 1.2 cm (0.24 to 0.47 in) tall, and initially sharply conical in shape, but later expands to become bell-shaped (campanulate). The margin of the cap curves upwards as the mushroom ages. The gills are narrow, and spaced close together. They have an adnate attachment to the stipe, and become black in color before dissolving (deliquescing). The stipe is 3 to 5 cm (1.2 to 2.0 in) by 0.08 to 0.1 cm (0.03 to 0.04 in) thick, hyaline to whitish. Initially it is pruinose (with a very fine whitish powder), but later becomes smooth.

The spores are cylindrical and tapering (terete), and tend to vary in size, with dimensions ranging from 11.2 to 15.6 by 6.2–8.3 µm. The spore-bearing cells, the basidia, are all 2-spored.

Habitat and distribution

This fungus was discovered growing in rich, moist soil. It is known from Denmark and the USA.[4]

References

  1. "Species Fungorum - Tulosesus amphithallus (M. Lange & A.H. Sm.) D. Wächt. & A. Melzer, Mycol. Progr. 19(11): 1208 (2020)". http://www.speciesfungorum.org/Names/GSDSpecies.asp?RecordID=831801. 
  2. Redhead SA, Scott A; Vilgalys R; Moncalvo J-M; Johnson J; Hopple JS; Hopple, John S; Johnson, Jacqui; Moncalvo, Jean-Marc et al. (2001). "Coprinus Pers. and the disposition of Coprinus species sensu lato". Taxon 50 (1): 203–241. doi:10.2307/1224525. 
  3. Wächter, Dieter; Melzer, Andreas (2020-11-01). "Proposal for a subdivision of the family Psathyrellaceae based on a taxon-rich phylogenetic analysis with iterative multigene guide tree" (in en). Mycological Progress 19 (11): 1151–1265. doi:10.1007/s11557-020-01606-3. ISSN 1861-8952. https://doi.org/10.1007/s11557-020-01606-3. 
  4. Lange, Morten; Smith, Alexander H. (195). "The Coprinus Ephemerus Group" (in en). Mycologia 45 (5): 747–780. doi:10.1080/00275514.1953.12024313. ISSN 0027-5514. https://www.tandfonline.com/doi/full/10.1080/00275514.1953.12024313. 

External links

Wikidata ☰ Q5168897 entry