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Boletus fraternus

Common Name: No Common Name

Synonyms: 

Substrate: Ground

Location: Hardwood forests

Spore Color: Olive-brown

Pore Color: Yellow, becoming brownish with age. Blues when bruised.

Comments: 

This is one of the members of the Boletus campestris group. They are quite often difficult to separate, because they all are small, have a brick red color to the cap, and a pore surface that bruises blue. If you have a small bolete with these features, with a cap that is cracking, it may be easiest to just call it Boletus fraternus. The stem should be "reddish pruinose over a yellow ground color, sometimes entirely yellow without a trace of red." (Bessette 2000)

Lookalikes:  

Boletus subfraternus does not have cracks and fissures and has irregular pores that nearly become gill-like towards the stem. Other members of the Boletus campestris group usually lacks the cracks as well. This includes Boletus campestris and Boletus rubellus. Boletus chrysenteron also has a cracked cap, but it will usually have more olive tones to the cap, and the cracked areas will be pinkish-red.

Pictures:

Boletus fraternus

Boletus fraternus

8/25/12 - Raccoon Lake SRA - Bloomington, IN

Boletus fraternus

9/13/12 - Brown County State Park - Nashville, IN