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Amanita rubescens

blushing amanita

Amanita rubescens — 2024-10-19
Scientific identification
Amanita rubescens Pers.
Family
Amanitaceae
Class
Agaricomycetes
Genus
Amanita

Names across languages

  • English: blushing amanita
  • German: Rötende Wulstling
  • Finnish: Rusokärpässieni
  • Estonian: Roosa kärbseseen
  • Russian: Мухомор серо-розовый

The scientific profile

From the latest record: 2024-10-19.

Hymenium

Gills white to creamy-white, crowded, with numerous shorter lamellulae; developing pinkish to reddish stains when bruised or with age

Cap

Hemispherical to convex when young, later broadly convex to flat; highly variable, pale pinkish-brown, grey-brown, reddish-brown to dark brown; usually covered with irregular greyish-white, pinkish-grey to brownish universal-veil warts; margin generally non-striate

Hymenium Attachment

Adnate to nearly free

Stipe

White to pale pinkish, cylindrical, often slightly enlarged or bulbous at base; progressively staining pink to wine-red when damaged; volva poorly developed and usually disappearing with age; membranous, pendulous ring distinctly striate on upper surface

Spore print

Spore print white

Ecology

Mycorrhizal with hardwoods and conifers; alone, scattered or gregariously; deciduous, coniferous and mixed forests; especially frequent on acidic, nutrient-poor soils; summer to autumn

Edibility

Edible only after thorough cooking; poisonous raw, easily confused

Uses & compounds

Rubescenslysin, a thermolabile haemolytic/cytolytic protein toxin

Fruit body

Fruit body medium to large; stipe ~7–15 cm long and ~1–2(–3) cm thick

Dimensions

Cap ∅ ~5–20 cm

Flesh

White, slowly turning pale pink, wine-red to reddish when cut, bruised or damaged, especially in the stipe base and around insect tunnels

Chemical reactions

No macroscopic reagents reaction

Odour

Mild, indistinct, mushroomy; sometimes unpleasant in old specimens

Taste

Mild, indistinct

Microscopy

Spores broadly ellipsoid to ovoid, smooth, hyaline, amyloid, ~8–10 × 5–7 µm; basidia predominantly 4-spored; clamp connections absent at basidial bases; lamellar trama bilateral

Overview

Brown-pink woodland Amanita characteristically blushing wine-red wherever damaged

1797). Tent. Disp. Meth. Fung. (Lipsiae): 67.

Field encounters

19/Oct/24, 2:33 PM

Soodla jõgi, Harjumaa, Estonia

Spruce-pine-birch forest, in moss with pine needles

59°23'13.3"N 25°23'51.8"E

🔆 Clear sky, forest shade

Original Instagram post

Source hashtags

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