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A blue staining bolete species. Cap 8-20cm across, convex to plane; brick red fading to apricot buff or orange-yellow; smooth, glabrous to minutely fibrillose, dry, soon with surface cracked. Tubes adnate to subdecurrent; bright yellow. Pores very small (l-2 per mm); chrome yellow to wax yellow, often flushed orange-red with age, bruising greenish blue. Stem 60-140 x 10-40mm, tapered below or equal; bright yellow above, flushed orange to brick red below; strongly pruinose when young, more or less persistently. Flesh pale yellow, turning blue when cut.