Agaricus pattersoniae
Agaricus pattersoniae | |
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Scientific classification | |
Domain: | Eukaryota |
Kingdom: | Fungi |
Division: | Basidiomycota |
Class: | Agaricomycetes |
Order: | Agaricales |
Family: | Agaricaceae |
Genus: | Agaricus |
Species: | A. pattersoniae
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Binomial name | |
Agaricus pattersoniae Peck (1907)
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Agaricus pattersoniae | |
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Gills on hymenium | |
Cap is convex or flat | |
saprotrophic | |
Edibility is edible |
Agaricus pattersoniae is an
Taxonomy
It was first
Description
The cap, 5–19 cm (2.0–7.5 in) in diameter, is initially almost hemispherical in shape, transforming to broadly convex and finally to flattened or with edges upturned in age. The cap surface is dry, with fibrils when young, but later the fibrils form large, dark brown appressed squamules (2–9 mm long by 2–5 mm broad). The cap color may be various shades of brown depending on the maturity of the specimen. The cap flesh is typically 1–3 cm (0.4–1.2 in) thick, firm, white, and stains deep red 20–30 seconds after injury or bruising. The odor immediately after cutting is mild, faintly spicy, but several minutes may be described as 'fruity'. An edible mushroom, the taste of A. pattersoniae is described as mild, pleasant, and slightly sweet.[4]
The gills are free in attachment, closely spaced, 5–15 mm (0.2–0.6 in) broad, and marginate. The light-cinnamon color in young specimens turns to a dark blackish brown in age after the spores develop. Bruised gills stain a vinaceous (wine-colored) red.[4]
The stipe is usually 8–18 cm (3.1–7.1 in) long by 2.5–4 cm (1.0–1.6 in) thick with a bulbous shape. The interior is hollow, with the internal cavity being between 5 and 9 mm (0.2 and 0.4 in) thick. The stipe context somewhat fibrous and white in color, except for the basal section which is yellowish. Bruising or cutting results in a red stain after a minute. The surface of the stipe is barely striate above the annulus, and smooth below except for fragments of the universal veil. During development the veils rupture and form an upper veil (partial veil), which initially hangs from the edge of the cap, and a lower veil. As the partial veil disintegrates, it often leaves fragments 2–3 mm in size attached to the margin.[4]
The
Habitat and distribution
Agaricus pattersoniae is associated with cypress (
See also
- List of Agaricus species
References
- .
- JSTOR 2478989.
- ^ "Agaricus pattersonae Peck". MycoBank. International Mycological Association. Retrieved 2016-01-21.
- ^ JSTOR 3759070.
- PMID 30271264.
- ISBN 978-0-472-85610-7.
- ^ Vellinga E. (2015). "Agaricus pattersoniae Peck". Global Fungal Red List Initiative. Retrieved 2016-01-22.