Boletus pulcherrimus Thiers and Halling
red-pored bolete
Boletaceae

Species account author: Ian Gibson.
Extracted from Matchmaker: Mushrooms of the Pacific Northwest.

Introduction to the Macrofungi

Photograph

© Michael Beug     (Photo ID #14874)


Map

E-Flora BC Static Map

Distribution of Boletus pulcherrimus
Click here to view the full interactive map and legend

Species Information

Odor:
mild (Thiers)
Taste:
mild (Thiers)
Microscopic:
spores 13-16 x 5.5-6.5 microns, subelliptic to subfusoid, smooth, not dextrinoid, ochraceous in KOH, moderately thick-walled; basidia 1-4-spored, 35-40 x 9-12 microns; hymenial cystidia scattered, 33-60 x 8-12 microns, fusoid-ventricose to subclavate to basidioid, colorless to ochraceous in KOH; cap cuticle a trichodermium of tangled hyphae with noticeably roughened walls; clamp connections absent, (Thiers)
Spore Deposit:
brown (Thiers), olive-brown (Arora)
EDIBILITY
poisonous, causing severe gastrointestinal distress, at least one fatality, (Bessette)

Habitat and Range

SIMILAR SPECIES
Boletus haematinus lacks red brown color in the cap, has a differently colored and shaped stem, has yellow pores when young, and is associated particularly with mountain conifers especially Red Fir, (Thiers). Boletus eastwoodiae has 1) a pale gray to olive-buff cap (rather than brown), 2) paler and more vinaceous red pores, 3) typically abruptly bulbous stem (as opposed to clavate or bulbous), 4) association with oak, and 5) spores that are smaller, and 6) septa of some of the tramal hyphae that are amyloid, (Thiers comparing Boletus "satanas" - here treated as B. eastwoodiae - to what was then generally known as B. eastwoodiae).
Habitat
single to gregarious in humus in mixed woods, (Thiers), single or scattered on ground in conifer or mixed woods, August to January, (Bessette), summer, fall, winter