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Rhodocollybia butyracea

Common Name: Sawtooth Collybia

Synonyms: Collybia butyracea

Substrate: Wood

Location: Conifer Forests

Spore Color: White to pinkish to yellowish

Gill Color: Whitish 

Comments: 

There can be quite a bit of variation with the color of the cap for this mushroom. It can range from yellow-brown to red-brown and anything inbetween. Some field guides mention this mushroom in hardwoods, but I have not seen it there. The key ID feature is the slightly serrated edges to the gills and the cartilagenous stem.  

Lookalikes:  

Gymnopus dryophilus does not have jagged gills. 

Pictures:

Rhodocollybia butyracea

Rhodocollybia butyracea

9/23/12 - Leonard Springs - Bloomington, IN

Rhodocollybia butyracea

8/28/12 - Shades State Park - Waveland, IN

Rhodocollybia butyracea

9/27/11 - Morgan Monroe State Forest