Boletus albidus Rocques syn. B. radicans Pers. ex Fr. s. Kall.
Wurzeinder Bitterröhrling Cèpe radicant Cap 8–16cm, dingy white to clay buff with ochraceous tints and smokey-grey margin, downy at first becoming smooth or cracking into small scales at centre, more ochraceous with age. Stem 50–80 x 30–40mm, robust, swollen towards the rooting base, sometimes flushed reddish, lemon-yellow at apex, spotted rusty to dirty ochraceous near base, net straw-coloured and distinct near apex, disappearing below. Flesh yellow then rapidly white in cap when cut; reacting similarly in stem but becoming pale blue especially in apex and rapidly fading. Taste unpleasant or bitter, smell spicy. Tubes lemon-yellow becoming blue on cutting or bruising. Pores small, round, lemon-yellow bruising blue. Spore print olivaceous snuff-brown. Spores subfusiform, 12–16 x 4.5–6µ. Habitat with broad-leaved trees, particularly oak and beech. Season summer to autumn. Rare. Not edible due to its bitterness. Found In Europe. Many thanks to Tom Storr who sent me terrific images, Tom found this impressive group under a Beech tree.(They are the ones that display in the larger size).