Rubroboletus satanas

Satan's bolete

Scientific identification: Rubroboletus satanas (Lenz) Kuan Zhao & Zhu L.Yang
Family: Boletaceae
Class: Agaricomycetes
Genus: Rubroboletus

Names across languages

English: Satan's bolete
German: Satans-Röhrling
Finnish: Piruntatti
Estonian: Saatana-kivipuravik (NT)
Russian: Красноборовик сатанинский

The scientific profile

From the latest record: 2024-08-25.

Hymenium

Pores, small, round, initially yellow, turning orange-blood-red, blue when bruised

Cap

Convex when young, flattening with age, surface smooth and velvety, pale grey to light beige, margin curved inward in young specimens

Hymenium Attachment

Free to slightly adnexed

Stipe

Robust, bulbous to clavate, yellow at the top, transitioning to red or reddish-orange with a dense, fine red reticulation

Spore print

Spore print olive-brown

Ecology

Mycorrhizal with broad-leaved trees such as oak, beech, and birch in calcareous soils, late spring to early autumn

Edibility

Highly toxic when raw, causing severe gastrointestinal distress, toxicity is not eliminated by cooking

Fruit body

Large, cap 10–25 cm in diameter, stipe 5–12 cm long, 3–7 cm thick

Chemical reactions

Flesh stains blue when cut, KOH on cap surface produces a dark red reaction

Odour

Unpleasant, reminiscent of decaying food or carrion

Taste

Bitter and unpleasant

Microscopy

Ellipsoid to fusiform, smooth, 11–16 × 4–6 µm, basidia 4-spored

Overview

Striking and large bolete with a pale cap, red pores, and a colorful, reticulate stipe

2014). Phytotaxa 188(2): 70.

https://www.gbif.org/species/7722553

Field encounters

25/Aug/24, 5:46 PM

Nedrema looduskaitseala, Pärnumaa, Estonia

Wooded meadow, near oak, birch, hazel trees, on highly calcareous soil

58°32'43.4"N 24°04'52.1"E

🔆 Sunny weather with occasional clouds

Original Instagram post

25/Aug/24, 4:29 PM

Nedrema looduskaitseala, Pärnumaa, Estonia

Wooded meadow, near oak, birch, hazel trees, on highly calcareous soil

58°32'17.9"N 24°04'19.9"E

🔆 Sunny weather with occasional clouds

Original Instagram post

Source hashtags

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