Observation 99962: Boletus L.
When: 2012-06-29
Herbarium specimen reported

Notes: Cap: 5-16 cm wide, surface smooth, dry, cracking deeply in dry weather; flesh white, patchily staining yellowish or pink (the small specimen showed faint bluing near the pileus margin after being in the refrigerator for several days); odor mild, taste mild to slightly sweet.

Pore surface: white when young, becoming yellowish olive-green in age, sometimes staining yellow to brown when bruised; 2-3 pores per mm, tubes to around 15 mm deep.

Stipe: 5-13 cm long by 4.5-7 cm wide, ventricose to clavate, white to yellowish to pinkish-brown and reticulate near apex, becoming smooth and predominately whitish toward base, surface sometimes cracking and sometimes staining light brown to yellowish where bruised.

Spores: 16-19 (av. = 17.75) x 5-7 (av. = 6) um, Q around 2.96, smooth, fusiform.

Habitat: Scattered under mature Pinus contorta.

Was thinking B. barrowsii but the spores are quite a bit larger than reported for that species.

Proposed Names

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Created: 2012-07-10 13:51:23 PDT (-0700)
Last modified: 2012-07-10 13:51:25 PDT (-0700)
Viewed: 67 times, last viewed: 2017-06-13 03:55:45 PDT (-0700)
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