Common Name: Oak-and-beech Bolete
Also known as: Xercomus Cap cracks extensively when mature. Another small bolete (2 max). Hard to distinguish from campestris (Field Bolete). The main distinction is that fraternus cap cracks even more. Pores are very deep. Stem often long, spotted with orange-red. Stem stains brown when handled. Stem flesh stains blue/green on upper parts & orange at the bottom. Pores stain blue/green. Flesh is bright yellow and slowly stains blue.
- Index Fungorum: 551214
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