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Amanita pantherina

panther cap

Amanita pantherina — 2023-09-10
Scientific identification
Amanita pantherina (DC.) Krombh.
Family
Amanitaceae
Class
Agaricomycetes
Genus
Amanita

Names across languages

  • English: panther cap
  • German: Pantherpilz
  • Finnish: Pantterikärpässieni
  • Estonian: Panter-kärbseseen
  • Russian: Мухомор пантерный

The scientific profile

From the latest record: 2023-09-10.

Hymenium

Gills white to creamy-white, crowded, broad, with numerous shorter lamellulae

Cap

Hemispherical to convex when young, later broadly convex to flat; ochre-brown, hazel-brown to dark brown; covered with numerous pure white to cream universal-veil warts that may wash away; margin distinctly striate at maturity

Hymenium Attachment

Free to narrowly adnexed

Stipe

White, cylindrical and tapering upward; base distinctly bulbous, with an adherent volva forming a characteristic collar or gutter-like rim and often one or more concentric rings above; membranous, pendulous white ring, usually smooth on its upper surface

Spore print

Spore print white

Ecology

Mycorrhizal mainly with hardwoods; alone, scattered or gregariously; deciduous, mixed forests and woodland edges; summer to autumn

Edibility

Poisonous and psychoactive; severe neurological intoxication with agitation, confusion, hallucinations, ataxia, CNS depression and gastrointestinal symptoms

Uses & compounds

Ibotenic acid, muscimol, muscazone, muscarine

Fruit body

Fruit body medium to large; stipe ~5–15 cm long and ~0.6–3 cm thick

Dimensions

Cap ∅ ~5–15(–18) cm

Flesh

White, firm, unchanging when cut or bruised; does not redden

Chemical reactions

10% KOH yellow-orange on cap flesh

Odour

Mild to indistinct, sometimes slightly radish-like or raw-potato-like when bruised

Taste

Mild, indistinct

Microscopy

Spores broadly ellipsoid to ellipsoid, smooth, hyaline, inamyloid, ~8–12 × 6–8 µm; basidia predominantly 4-spored; clamp connections absent at basidial bases

Overview

Brown woodland Amanita with pure white veil warts, striate cap margin, smooth ring and characteristic gutter-like volval collar around a bulbous base

1846). Naturgetr. Abbild. Beschr. Schwämme (Prague): 29.

Field encounters

10/Sep/23, 3:40 PM

Raudoja, Harju County

Mixed forest, within birches and pines, in decaying leaves

59°22'45.6"N 25°28'53.6"E

🔆 Mild overcast, semi-shaded spot

Original Instagram post

Source hashtags

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