Found growing solo on ground under grapevines irrigated for first time this year 2 days prior; nearest tree is blue oak; live oak and grey pine in general area. Boletes are not a common sight at this time of year here.
Golden yellow tubes, ~1-1.4 cm long, bruises to a dark bluish color.
Pileus contex and stipe blued slowly when cut; this bluing faded with time.
Mostly smooth tan surface of pileus was partially areolate, with more yellowish color showing through fissures.
Stipe was quite short relative to pileus: convex pileus was 14 × 12 cm and more or less clam-shaped; stipe only 3 cm long, diameter 4 × 6.5 cm with slight taper mid-stipe, then bulbous before tapering again. Stipe pale yellow surface, cream yellow interior, with some reddish streaks at very bottom.
Apex of stipe looked reticulate or reticulate-like (see photo).
Pileus surface stained light brown with household ammonia and deep brown—and quickly—with 4% KOH (see photo)
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Created: 2015-05-27 00:08:22 CEST (+0200)
Last modified: 2015-05-27 03:38:24 CEST (+0200)
Viewed: 39 times, last viewed: 2017-06-20 10:48:12 CEST (+0200)