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Clavariadelphus unicolor

Common Name: Flat-topped Fairly Club

Synonyms: 

Substrate: Ground

Location: Hardwood Forests

Spore Color: Pale Yellow

Comments: 

One of the key features to this mushroom is that the top looks flattened, and sometimes depressed, differentiating it from the rounded top of similar species. The fruitbody is a reddish brown color with a white base that will often go into the soil. The outer flesh is usually wrinkled. 

One way to confirm your ID is with KOH. The surface of the fruitbody should have a yellow reaction.

Lookalikes:  

Clavariadelphus truncatus is very similar but is found under conifers and has a ochre spore print. Clavariadelphus borealis is also common under conifers, particularly in the PNW, having a white spore print and bittersweet taste. Clavariadelphus pistillaris is very similar, but has a rounded top and a bitter taste.

Pictures:

Clavariadelphus unicolor

10/12/13 - Morgan County, IN

Clavariadelphus truncatus

10/3/12 - Griffy Woods - Bloomington, IN