Green Stain Mushroom (fruting bodies) in Howard Co., Maryland (10/3/2011). Spores were not examined.

View Record Details Photo by Robert Solem MBP List

Green Stain Mushroom in Howard Co., Maryland (5/14/2018). Determined by Jo Solem.

View Record Details Photo by Sue Muller MBP List

Green Stain Mushroom in Garrett Co., Maryland (8/17/2017).

View Record Details Photo by Boyer and McDowell MBP List

Green Stain Mushroom in Howard Co., Maryland (6/10/2015). Spores were not examined.

View Record Details Photo by Bonnie Ott MBP List

Green Stain Mushroom (fruiting bodies) in Howard Co., Maryland (11/11/2015).

View Record Details Photo by Joanne Solem MBP List

Green Stain Mushroom in Howard Co., Maryland (10/20/2018). Determined by Jo and Bob Solem.

View Record Details Photo by Sue Muller MBP List

Green Stain Mushroom in Garrett Co., Maryland (11/27/2020). (c) Grainne O'Grady, some rights reserved (<a rel='license' href='http://creativecommons.org/licenses/by-nc/4.0/'>CC BY-NC</a>). (Photo ID: 322312 - Psn: 42)

Green Stain Mushroom in Garrett Co., Maryland (11/27/2020). (c) Grainne O'Grady, some rights reserved (CC BY-NC).

View Record Details Photo by Grainne O'Grady via iNaturalist MBP List

Green Stain Mushroom in Frederick Co., Maryland (4/26/2019).

View Record Details Photo by Sue Muller MBP List

Green Stain Mushroom in Howard Co., Maryland (1/11/2020). Determined by Jo Solem.

View Record Details Photo by Sue Muller MBP List

Green Stain Mushroom (on wood with a few fruiting bodies - form in which this fungus is most often observed) in Howard Co., Maryland (11/11/2015).

View Record Details Photo by Joanne Solem MBP List

Green Stain Mushroom in Howard Co., Maryland (10/21/2020). (c) smuller, some rights reserved (<a rel='license' href='http://creativecommons.org/licenses/by-nc/4.0/'>CC BY-NC</a>). (Photo ID: 305065 - Psn: 54)

Green Stain Mushroom in Howard Co., Maryland (10/21/2020). (c) smuller, some rights reserved (CC BY-NC).

View Record Details Photo by Sue Muller MBP List

Green Stain Mushroom in Howard Co., Maryland (10/21/2020). (c) smuller, some rights reserved (CC BY-NC).

View Record Details Photo by Sue Muller MBP List

Green Stain Mushroom in Howard Co., Maryland (10/21/2020). (c) smuller, some rights reserved (CC BY-NC).

View Record Details Photo by Sue Muller MBP List

Green Stain Mushroom in Montgomery Co., Maryland (10/31/2020). (c) amycophile, some rights reserved (<a rel='license' href='http://creativecommons.org/licenses/by-nc/4.0/'>CC BY-NC</a>). (Photo ID: 307307 - Psn: 66)

Green Stain Mushroom in Montgomery Co., Maryland (10/31/2020). (c) amycophile, some rights reserved (CC BY-NC).

View Record Details Photo by amycophile via iNaturalist MBP List

Green Stain Mushroom in Garrett Co., Maryland (7/13/2019). Determined by Jo Solem.

View Record Details Photo by Sue Muller MBP List

Green Stain Mushroom in Frederick Co., Maryland (10/16/2020). (c) Tori Rottman-Turner, some rights reserved (<a rel='license' href='http://creativecommons.org/licenses/by-nc/4.0/'>CC BY-NC</a>). (Photo ID: 307291 - Psn: 75)

Green Stain Mushroom in Frederick Co., Maryland (10/16/2020). (c) Tori Rottman-Turner, some rights reserved (CC BY-NC).

View Record Details Photo by Tori Rottman-Turner via iNaturalist MBP List

Green Stain Mushroom in Frederick Co., Maryland (10/16/2020). (c) Tori Rottman-Turner, some rights reserved (CC BY-NC).

View Record Details Photo by Tori Rottman-Turner via iNaturalist MBP List

Green Stain Mushroom in Garrett Co., Maryland (9/14/2020). (c) Emilio Concari, some rights reserved (<a rel='license' href='http://creativecommons.org/licenses/by-nc/4.0/'>CC BY-NC</a>). (Photo ID: 333441 - Psn: 78)

Green Stain Mushroom in Garrett Co., Maryland (9/14/2020). (c) Emilio Concari, some rights reserved (CC BY-NC).

View Record Details Photo by Emilio Concari MBP List

Green Stain Mushroom in Frederick Co., Maryland (7/2001). Spores were not examined.

View Record Details Photo by Bob Cammarata MBP List

Green Stain Mushroom in Montgomery Co., Maryland (3/6/2019). Determined by Jo Solem.

View Record Details Photo by Anne Looker MBP List

Green Stain Mushroom growing in Montgomery Co., Maryland (3/26/2019). Determined by Jo Solem.

View Record Details Photo by Anne Looker MBP List

Green Stain Mushroom spores collected in Howard Co., Maryland (11/11/2015). Irregularly fusiform w/ 2 oil drops, smooth, hyaline; measured 6.5-10.0 X 1.2-2.0 microns.

View Record Details Photo by Robert Solem MBP List

Green Stain Mushroom in Prince George's Co., Maryland (12/9/2018).

View Record Details Photo by Anne Looker MBP List

Green Stain Mushroom in Montgomery Co., Maryland (12/5/2018).

View Record Details Photo by Anne Looker MBP List

Spores of Green Stain Mushroom in Howard Co., Maryland (8/3/2015). (c) Joanne and Robert Solem, some rights reserved (<a rel='license' href='http://creativecommons.org/licenses/by-nc/4.0/'>CC BY-NC</a>). (Photo ID: 349950 - Psn: 105)

Spores of Green Stain Mushroom in Howard Co., Maryland (8/3/2015). (c) Joanne and Robert Solem, some rights reserved (CC BY-NC).

View Record Details Photo by Joanne Solem MBP List

Green Stain Mushroom in Howard Co., Maryland (1/23/2019).

View Record Details Photo by Sue Muller MBP List

Green Stain Mushroom in Carroll Co., Maryland (9/16/2020). (c) tomfeild, some rights reserved (<a rel='license' href='http://creativecommons.org/licenses/by-nc/4.0/'>CC BY-NC</a>). (Photo ID: 305518 - Psn: 200)

Green Stain Mushroom in Carroll Co., Maryland (9/16/2020). (c) tomfeild, some rights reserved (CC BY-NC).

View Record Details Photo by Tom Feild MBP List

Map Snapshot

58 Records

GA AL WA FR CL MO HO BA BC HA CE PG AA CV CH SM KE QA CN TA DO WI SO WO

Status

Fruiting body: Infertile (outer) surface blue-green; fertile (inner) surface blue-green (sometimes yellow-green); smooth; saucer to cup-shaped. Stalk: Blue-green, often off-center. Spores must be examined to distinguish C. aeruginascens from nearly identical C. aeruginosa (not yet confirmed for the project) and the two species are treated together here.

Relationships

Found in groups or clusters on hardwood logs, mostly oaks; often stain wood substrate blue-green. (J. Solem, pers. comm.)

Seasonality Snapshot

Resources

View at iNaturalist View at NatureServe Explorer Search Google Images Search MBP Facebook posts

View at MycoBank

Eating mushrooms can be dangerous. One should do so only with expert advice and great care. MBP accepts no liability for injury sustained in consuming fungi or other biodiversity. Use of media featured on Maryland Biodiversity Project is only permitted with express permission of the photographer.

Green Stain Mushroom (fruting bodies) in Howard Co., Maryland (10/3/2011). Spores were not examined. View Record Details Media by Robert Solem.

Green Stain Mushroom in Howard Co., Maryland (5/14/2018). Determined by Jo Solem. View Record Details Media by Sue Muller.

Green Stain Mushroom in Garrett Co., Maryland (8/17/2017). View Record Details Media by Boyer and McDowell.

Green Stain Mushroom in Howard Co., Maryland (6/10/2015). Spores were not examined. View Record Details Media by Bonnie Ott.

Green Stain Mushroom (fruiting bodies) in Howard Co., Maryland (11/11/2015). View Record Details Media by Joanne Solem.

Green Stain Mushroom in Howard Co., Maryland (10/20/2018). Determined by Jo and Bob Solem. View Record Details Media by Sue Muller.

Green Stain Mushroom in Garrett Co., Maryland (11/27/2020). (c) Grainne O'Grady, some rights reserved (CC BY-NC). View Record Details Media by Grainne O'Grady via iNaturalist.

Green Stain Mushroom in Frederick Co., Maryland (4/26/2019). View Record Details Media by Sue Muller.

Green Stain Mushroom in Howard Co., Maryland (1/11/2020). Determined by Jo Solem. View Record Details Media by Sue Muller.

Green Stain Mushroom (on wood with a few fruiting bodies - form in which this fungus is most often observed) in Howard Co., Maryland (11/11/2015). View Record Details Media by Joanne Solem.

Green Stain Mushroom in Howard Co., Maryland (10/21/2020). (c) smuller, some rights reserved (CC BY-NC). View Record Details Media by Sue Muller.

Green Stain Mushroom in Montgomery Co., Maryland (10/31/2020). (c) amycophile, some rights reserved (CC BY-NC). View Record Details Media by amycophile via iNaturalist.

Green Stain Mushroom in Garrett Co., Maryland (7/13/2019). Determined by Jo Solem. View Record Details Media by Sue Muller.

Green Stain Mushroom in Frederick Co., Maryland (10/16/2020). (c) Tori Rottman-Turner, some rights reserved (CC BY-NC). View Record Details Media by Tori Rottman-Turner via iNaturalist.

Green Stain Mushroom in Garrett Co., Maryland (9/14/2020). (c) Emilio Concari, some rights reserved (CC BY-NC). View Record Details Media by Emilio Concari.

Green Stain Mushroom in Frederick Co., Maryland (7/2001). Spores were not examined. View Record Details Media by Bob Cammarata.

Green Stain Mushroom in Montgomery Co., Maryland (3/6/2019). Determined by Jo Solem. View Record Details Media by Anne Looker.

Green Stain Mushroom growing in Montgomery Co., Maryland (3/26/2019). Determined by Jo Solem. View Record Details Media by Anne Looker.

Green Stain Mushroom spores collected in Howard Co., Maryland (11/11/2015). Irregularly fusiform w/ 2 oil drops, smooth, hyaline; measured 6.5-10.0 X 1.2-2.0 microns. View Record Details Media by Robert Solem.

Green Stain Mushroom in Prince George's Co., Maryland (12/9/2018). View Record Details Media by Anne Looker.

Green Stain Mushroom in Montgomery Co., Maryland (12/5/2018). View Record Details Media by Anne Looker.

Spores of Green Stain Mushroom in Howard Co., Maryland (8/3/2015). (c) Joanne and Robert Solem, some rights reserved (CC BY-NC). View Record Details Media by Joanne Solem.

Green Stain Mushroom in Howard Co., Maryland (1/23/2019). View Record Details Media by Sue Muller.

Green Stain Mushroom in Carroll Co., Maryland (9/16/2020). (c) tomfeild, some rights reserved (CC BY-NC). View Record Details Media by Tom Feild.