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Summary: Features include dark reddish brown, tomentose to fibrillose cap, dark red pores, yellow flesh and tubes that turn blue, and club-shaped to somewhat bulbous stem colored pale reddish brown with dark red reticulations. Thiers and Halling in 1976 examined the type of Boletus eastwoodiae (Murrill) Saccardo & Trotter and found it to be Boletus satanas (treated here as Boletus eastwoodiae): what had passed in California under the name Boletus eastwoodiae was renamed Boletus pulcherrimus, (Thiers(9)). Boletus pulcherrimus is found in WA, OR, and CA, (Thiers), and BC and NM, (Bessette).
Cap: 8-20cm, convex, expanding, sometimes to flat or irregular in outline; reddish brown when young, usually with reddish tones particularly near margin, unchanging when old or darkening somewhat, moist to dry, bald to subtomentose to sometimes slightly velvety when young, unchanging or becoming obscurely appressed-fibrillose when old, often when very old somewhat areolate [cracked like dried mud] and obscurely fibrillose scaly, the scales often developing grayish tips, (Thiers), "reddish brown at first, becoming olive-brown to grayish on the fibrils over a pinkish red to dull red ground color, distinctly pinkish red to dull red along the margin"; margin incurved at first, usually with a narrow band of sterile tissue, (Bessette)
Flesh: 2-4cm thick, bright yellow, changing to blue when first exposed then often fading to pale bluish yellow, (Thiers)
Pores: up to 1 mm, angular; dark red when young, changing to reddish brown when old, often yellow near margin, turning blue when bruised; tube layer 0.5-1.5cm thick, adnate to adnexed when young, usually depressed when old, yellow, turning blue immediately on exposure, (Thiers), 2-3 per mm, angular to irregular, dark red at first, becoming orange-red, then brownish red, instantly turning blue when bruised, (Bessette)
Stem: 7-16cm x 2-5cm, widening to 10cm thick at base, club-shaped to bulbous but not abruptly bulbous, sometimes equal especially when young, solid; pale reddish brown, base often staining brown, turning blue elsewhere when bruised; dry, dark red reticulation at least over upper 2/3, (Thiers), partial veil and annulus absent (Bessette)
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)
Habitat / Range
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
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).
Recommended citation: Author, Date. Page title. In Klinkenberg, Brian. (Editor) 2020. E-Flora BC:
Electronic Atlas of the Plants of British Columbia [eflora.bc.ca]. Lab for
Advanced Spatial Analysis, Department of Geography, University of British
Columbia, Vancouver. [Accessed:
2021-04-12 11:51:16 AM
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