Agaricus moelleri
Agaricus moelleri | |
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Scientific classification ![]() | |
Domain: | Eukaryota |
Kingdom: | Fungi |
Division: | Basidiomycota |
Class: | Agaricomycetes |
Order: | Agaricales |
Family: | Agaricaceae |
Genus: | Agaricus |
Species: | A. moelleri
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Binomial name | |
Agaricus moelleri Wasser (1976)
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Synonyms | |
Agaricus placomyces Peck (1878) |
Agaricus moelleri saprotrophic | |
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![]() | Edibility is poisonous |
Agaricus moelleri, commonly known as the flat-top agaricus,
Taxonomy
For many years Agaricus moelleri was erroneously accredited with the binomial Agaricus placomyces by some British authors. The
Description
The cap has a greyish-brown patch in the centre and cold grey-brown scaling on the surrounding off-white background. It is 5 to 9 centimetres (2 to 3+1⁄2 in) in diameter, and yellows when bruised. It is ovate when young, flattening later.[2] The stem has a drooping ring, and stains yellow very easily when bruised, this colour then changes to brown over time. The stem flesh bruises yellow only faintly, and is more noticeable in the base. The gills are crowded, and free, as is typical for an Agaricus. They are pink on young specimens, but brown to black on older fruit bodies. The flesh is white and does not change colour on cutting. It is noted by some authors as smelling like ink, iodoform, sweat, or mouldy straw. The spores are 4–6 x 3–4 μm, and are elliptical. The odour resembles phenol.[6]
A similar species occurring in North America, Agaricus praeclaresquamosus A.E. Freeman 1979, has several variants, some of which are larger.[7]
The rare Agaricus phaeolepidotus also has the iodoform, or ink smell, but has browner cap scales, and stains yellow less readily.[3]
Distribution and habitat
Agaricus moelleri is found in the
Toxicity
In the same fashion as the yellow stainer (Agaricus xanthodermus), Agaricus moelleri can produce gastrointestinal symptoms for some people but not others, when ingested.[3] It is considered toxic.[6]
Similar species
Agaricus hondensis is similar, with a pinkish tint and firmer flesh.[6]
See also
- List of Agaricus species
References
- ISBN 978-0-89815-169-5.
- ^ ISBN 0-330-44237-6.
- ^ ISBN 0-7513-1070-0.
- ^ "Basidiomycota Checklist-Online - Species Page". 2011-07-20. Archived from the original on 2011-07-20. Retrieved 2021-10-13.
- ^ Wasser SP. (1976). "Species nova e genere Agaricus L. ex Fr. emnd. Karst". Novosti Sistematiki Nizshikh Rastenii. 13: 77–9.
- ^ ISBN 978-0-88192-935-5.
- ISBN 0-89815-169-4.
- ISBN 9786008351429.