Suillellus luridus

lurid bolete

Scientific identification: Suillellus luridus (Schaeff.) Murrill
Family: Boletaceae
Class: Agaricomycetes
Genus: Suillellus

Names across languages

English: lurid bolete
German: Netzstieliger Hexen-Röhrling
Finnish: Tauriontatti
Estonian: Tamme-kivipuravik
Russian: Дубовик оливково-бурый

The scientific profile

From the latest record: 2025-07-19.

Hymenium

Pores, initially yellowish-orange, maturing to orange-red

Cap

Convex becoming flat, surface initially finely tomentose, later smooth, color olive-yellow-brown, reddish-purplish flushes

Hymenium Attachment

Adnate, tubes about 1-1.5 cm deep

Stipe

Sturdy, cylindrical, bright yellow with a prominent red-orange reticulate pattern

Spore print

Spore print olive-brown

Ecology

Ectomycorrhizal, found in calcareous mixed and broadleaf woodlands with beech, oak, birch, late summer to autumn

Edibility

Edible when thoroughly cooked, when undercooked causes gastrointestinal upset, alcohol may worsen effects

Fruit body

Fruit body medium to large, cap 5-20 cm, stipe 6-15 x 2-5 cm

Description

Rapidly and intensely turning blue-black when bruised or cut

Chemical reactions

KOH on cap surface → blackish-red, flesh → orange-yellow

Odour

Somewhat earthy

Taste

Mild, nutty

Microscopy

Spores smooth, subfusiform to broadly ellipsoid, 11-15 x 4.5-6.5 µm, brownish in KOH

Overview

Robust bolete with olive-brown cap, bright yellow pores that bruise to blue-black, yellow stipe with red reticulation

1909). Mycologia 1(1): 17.

https://www.gbif.org/species/3355021

Field encounters

19/Jul/25, 7:03 PM

Tivoli elurajoon, Tallinn, Harjumaa, Eesti

Urban park near sea, oaks and birches, calcareous soil, tall grass

59°26'31.8"N 24°47'00.8"E

🌡️ 20.3°C ☀️ Sunny and humid

Original Instagram post

25/Aug/24, 3:29 PM

Oidrema mõis, Pärnumaa, Estonia

Urban park, mawned grass field, near old linden tree

58°35'50.3"N 23°56'06.7"E

🔆 Sunny weather, bright spot

Original Instagram post

Source hashtags

#hongos #suillellus #suillellusluridus #luridbolete #tammekivipuravik #kivipuravik #tauriontatti #boletes #netzstieligerhexenröhrling #röhrling #mushroomphoto #fungiphoto #fungimacro #naturephotography #seenefotod #pilzefotografieren #фотогрибов #sieniäkuvia #houby #mycology #fungistudy #mushroomhunt #mushroom #fungi #boletaceae #ediblefungi #seened #pilze #sonyalpha #bolete #forestwalk #estonianfungi #champignon

Back to the collection · Photography and field notes by @fungarium.info