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Meripilus sumstinei

Meripilus sumstinei


Common Name: Black Staining Polypore

Synonyms: Meripilus giganticusPolyporus giganticus

Substrate: Wood

Location: Usually at Base of Stumps

Spore Color: White

Pore Color: White


Commonly growing from the base of stumps, this polypore can grow to be very large. The key feature to look for is the white pore surface that bruises black as the mushroom is handled. This mushroom is edible, although not very good tasting.


Hen of the Woods (Grifola frondosa) is very similar but does not stain black and has more of a grayish pore surface. The individual petals are also smaller.  Berkeley's Polypore (Bondarzewia berkeleyi) is also very similar but has pores that run down the stem. 


Meripilus sumstinei

6/26/10 - Morgan County, IN