10/Aug/24, 6:28 PM
Tivoli elurajoon, Tallinn, Harjumaa, Estonia
Birch and mapple park zone, grass meadow, on ground with Agaric bitorquis mycelium
59°26'26.9"N 24°47'06.3"E
🔆 Occasional sun with rain clouds
Original Instagram postAgaricus subperonatus
tapered mushroom
- Scientific identification
- Agaricus subperonatus (J.E.Lange) Singer
- Family
- Agaricaceae
- Class
- Agaricomycetes
- Genus
- Agaricus
Names across languages
- English: tapered mushroom
- German: Gegürtelter Egerling
- Estonian: Pruunisoomuseline šampinjon
- Russian: Шампиньон полуобутый
The scientific profile
From the latest record: 2024-08-10.
Hymenium
Crowded; whitish when very young, becoming greyish-pink to pink and finally dark chocolate-brown as spores mature
Cap
Initially hemispherical to convex, later broadly convex or almost flat; pale cream beneath appressed brown fibrils or scales, often darkest toward the centre; margin may retain veil fragments when young
Hymenium Attachment
Free — gills do not reach the stipe
Stipe
Robust, whitish, cylindrical to slightly clavate or tapering and often rooting deeply; substantial superior to median ring, with whitish to brownish veil zones or a characteristic boot-like sheath below the ring
Spore print
Spore print chocolate-brown to dark brown
Ecology
Saprobic on humus-rich, disturbed or grassy ground (parks, gardens and roadside verges); often reported sharing soil with other Agaric species (A. bitorquis, A. bisporus, A. campestris); gregarious; summer to late autumn
Edibility
Edible but of indifferent or poor culinary quality
Fruit body
Fruit body medium to large; stipe ~5–12 cm long and ~1.5–3 cm thick
Dimensions
Cap ∅ ~6–15 cm
Flesh
Flesh whitish, firm; may remain unchanged or slowly stain pale pink to reddish when cut, particularly toward the stipe base; never characteristically yellow-staining
Chemical reactions
KOH negative on cap surface
Odour
Mild, mushroomy, sometimes becoming liquorice-like in old specimens
Taste
Mild, not distinctive
Microscopy
Spores ellipsoid to ovoid, smooth, thick-walled, brown in KOH, ~6–8 × 4–5.5 µm; basidia 4-sterigmate; cheilocystidia abundant, clavate to subclavate, ~20–30 × 6–8 µm; pleurocystidia absent; pileipellis a cutis
Overview
Robust brown-scaled Agaricus of parks and disturbed ground
1951). Lilloa 22: 432 (’1949′).
Field encounters
Source hashtags
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