Cracked Cap Polypore growing in Baltimore Co., Maryland (2/20/2020).

View Record Details Photo by Emilio Concari MBP List

Cracked Cap Polypore on <a href='http://www.marylandbiodiversity.com/viewSpecies.php?species=3842'>Black Locust</a> in Howard Co., Maryland (8/26/2017). Determined by Jo Solem. (Photo ID: 93246 - Psn: 20)

Cracked Cap Polypore on Black Locust in Howard Co., Maryland (8/26/2017). Determined by Jo Solem.

View Record Details Photo by Kevin Heffernan MBP List

Cracked Cap Polypore in Anne Arundel Co., Maryland (2/23/2021). (c) Matthew Beziat, some rights reserved (<a rel='license' href='http://creativecommons.org/licenses/by-nc/4.0/'>CC BY-NC</a>). (Photo ID: 343722 - Psn: 35)

Cracked Cap Polypore in Anne Arundel Co., Maryland (2/23/2021). (c) Matthew Beziat, some rights reserved (CC BY-NC).

View Record Details Photo by Matthew Beziat MBP List

A Cracked Cap Polypore on Black Locust in St. Mary's Co., Maryland (12/17/2016).

View Record Details Photo by Bill Hubick MBP List

A Cracked Cap Polypore on Black Locust in Somerset Co., Maryland (5/22/2015).

View Record Details Photo by Lance Biechele MBP List

Cracked Cap Polypore in Anne Arundel Co., Maryland (1/12/2021). (c) Matthew Beziat, some rights reserved (<a rel='license' href='http://creativecommons.org/licenses/by-nc/4.0/'>CC BY-NC</a>). (Photo ID: 351162 - Psn: 50)

Cracked Cap Polypore in Anne Arundel Co., Maryland (1/12/2021). (c) Matthew Beziat, some rights reserved (CC BY-NC).

View Record Details Photo by Matthew Beziat MBP List

Cracked Cap Polypore in Calvert Co., Maryland (2/23/2020). (c) johnbotany, some rights reserved (<a rel='license' href='http://creativecommons.org/licenses/by-nc/4.0/'>CC BY-NC</a>). (Photo ID: 320278 - Psn: 55)

Cracked Cap Polypore in Calvert Co., Maryland (2/23/2020). (c) johnbotany, some rights reserved (CC BY-NC).

View Record Details Photo by John Hall MBP List

Cracked Cap Polypore in Baltimore Co., Maryland (4/17/2021). (c) wildluker, some rights reserved (<a rel='license' href='http://creativecommons.org/licenses/by-nc/4.0/'>CC BY-NC</a>). (Photo ID: 363050 - Psn: 55)

Cracked Cap Polypore in Baltimore Co., Maryland (4/17/2021). (c) wildluker, some rights reserved (CC BY-NC).

View Record Details Photo by wildluker via iNaturalist MBP List

Cracked Cap Polypore on Black Locust in Talbot Co., Maryland (10/24/2015).

View Record Details Photo by Rick Borchelt MBP List

Cracked Cap Polypore on Black Locust in Frederick Co., Maryland (1/11/2020).

View Record Details Photo by Emilio Concari MBP List

Cracked Cap Polypore in Baltimore Co., Maryland (11/15/2019). (c) Emilio Concari, some rights reserved (<a rel='license' href='http://creativecommons.org/licenses/by-nc/4.0/'>CC BY-NC</a>). (Photo ID: 333397 - Psn: 62)

Cracked Cap Polypore in Baltimore Co., Maryland (11/15/2019). (c) Emilio Concari, some rights reserved (CC BY-NC).

View Record Details Photo by Emilio Concari MBP List

Cracked Cap Polypore in Baltimore Co., Maryland (11/15/2019). (c) Emilio Concari, some rights reserved (CC BY-NC).

View Record Details Photo by Emilio Concari MBP List

Cracked Cap Polypore in Baltimore Co., Maryland (5/14/2021). (c) laurabankey, some rights reserved (<a rel='license' href='http://creativecommons.org/licenses/by-nc/4.0/'>CC BY-NC</a>). (Photo ID: 377779 - Psn: 65)

Cracked Cap Polypore in Baltimore Co., Maryland (5/14/2021). (c) laurabankey, some rights reserved (CC BY-NC).

View Record Details Photo by laurabankey via iNaturalist MBP List

Cracked Cap Polypore in Calvert Co., Maryland (12/18/2016).

View Record Details Photo by Mac Plant MBP List

Cracked Cap Polypore on Black Locust in Calvert Co., Maryland (3/5/2016).

View Record Details Photo by Bill Hubick MBP List

Cracked Cap Polypore in St. Mary's Co., Maryland (5/27/2017).

View Record Details Photo by Jim Brighton MBP List

Cracked Cap Polypore in Howard Co., Maryland (3/16/2018). Determined by Bob and Jo Solem.

View Record Details Photo by Sue Muller MBP List

Cracked Cap Polypore in Washington Co., Maryland (9/16/2020). (c) Emily, some rights reserved (<a rel='license' href='http://creativecommons.org/licenses/by-nc/4.0/'>CC BY-NC</a>). (Photo ID: 218818 - Psn: 78)

Cracked Cap Polypore in Washington Co., Maryland (9/16/2020). (c) Emily, some rights reserved (CC BY-NC).

View Record Details Photo by Emily via iNaturalist MBP List

Cracked Cap Polypore in Prince George's Co., Maryland (4/12/2019). Determined by Jo Solem.

View Record Details Photo by Anne Looker MBP List

A Cracked Cap Polypore on Black Locust in Baltimore City, Maryland (12/28/2015).

View Record Details Photo by Bill Hubick MBP List

Cracked Cap Polypore in Frederick Co., Maryland (11/16/2019). (c) Emilio Concari, some rights reserved (<a rel='license' href='http://creativecommons.org/licenses/by-nc/4.0/'>CC BY-NC</a>). (Photo ID: 333395 - Psn: 90)

Cracked Cap Polypore in Frederick Co., Maryland (11/16/2019). (c) Emilio Concari, some rights reserved (CC BY-NC).

View Record Details Photo by Emilio Concari MBP List

Cracked Cap Polypore in Baltimore City, Maryland (2/5/2021). (c) Matthew Beziat, some rights reserved (<a rel='license' href='http://creativecommons.org/licenses/by-nc/4.0/'>CC BY-NC</a>). (Photo ID: 337151 - Psn: 90)

Cracked Cap Polypore in Baltimore City, Maryland (2/5/2021). (c) Matthew Beziat, some rights reserved (CC BY-NC).

View Record Details Photo by Matthew Beziat MBP List

Cracked Cap Polypore in Queen Anne's Co., Maryland (5/15/2017).

View Record Details Photo by Wayne Longbottom MBP List

Cracked Cap Polypore in Anne Arundel Co., Maryland (7/16/2020). (c) pmhabicht, some rights reserved (<a rel='license' href='http://creativecommons.org/licenses/by-nc/4.0/'>CC BY-NC</a>). (Photo ID: 253215 - Psn: 200)

Cracked Cap Polypore in Anne Arundel Co., Maryland (7/16/2020). (c) pmhabicht, some rights reserved (CC BY-NC).

View Record Details Photo by pmhabicht via iNaturalist MBP List

Cracked Cap Polypore in Prince George's Co., Maryland (9/29/2019). (c) eehamilton, some rights reserved (<a rel='license' href='http://creativecommons.org/licenses/by-nc/4.0/'>CC BY-NC</a>). (Photo ID: 253223 - Psn: 200)

Cracked Cap Polypore in Prince George's Co., Maryland (9/29/2019). (c) eehamilton, some rights reserved (CC BY-NC).

View Record Details Photo by eehamilton via iNaturalist MBP List

Cracked Cap Polypore in Carroll Co., Maryland (1/16/2021). (c) Emilio Concari, some rights reserved (<a rel='license' href='http://creativecommons.org/licenses/by-nc/4.0/'>CC BY-NC</a>). (Photo ID: 329779 - Psn: 200)

Cracked Cap Polypore in Carroll Co., Maryland (1/16/2021). (c) Emilio Concari, some rights reserved (CC BY-NC).

View Record Details Photo by Emilio Concari MBP List

Cracked Cap Polypore in Carroll Co., Maryland (1/16/2021). (c) Emilio Concari, some rights reserved (CC BY-NC).

View Record Details Photo by Emilio Concari MBP List

Cracked Cap Polypore in Baltimore Co., Maryland (4/17/2021). (c) wildluker, some rights reserved (CC BY-NC).

View Record Details Photo by wildluker via iNaturalist MBP List

Map Snapshot

327 Records

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Description

Cracked Cap Polypore is a relatively large, hoof-shaped shelf fungus. The cap is usually gray to dark brown with concentric bands marking annual growth. It is a parasite of Black Locust, but is also found on the dead wood of other hardwood trees. Cracked Cap Polypore is similar to Juniper Pocket Rot which infects junipers.

Where To Find

Can be found throughout Maryland.

Relationships

Parasite of Black Locust (L. Biechele, pers. comm.).

Seasonality Snapshot

Resources

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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.

Cracked Cap Polypore growing in Baltimore Co., Maryland (2/20/2020). View Record Details Media by Emilio Concari.

Cracked Cap Polypore on Black Locust in Howard Co., Maryland (8/26/2017). Determined by Jo Solem. View Record Details Media by Kevin Heffernan.

Cracked Cap Polypore in Anne Arundel Co., Maryland (2/23/2021). (c) Matthew Beziat, some rights reserved (CC BY-NC). View Record Details Media by Matthew Beziat.

A Cracked Cap Polypore on Black Locust in St. Mary's Co., Maryland (12/17/2016). View Record Details Media by Bill Hubick.

A Cracked Cap Polypore on Black Locust in Somerset Co., Maryland (5/22/2015). View Record Details Media by Lance Biechele.

Cracked Cap Polypore in Anne Arundel Co., Maryland (1/12/2021). (c) Matthew Beziat, some rights reserved (CC BY-NC). View Record Details Media by Matthew Beziat.

Cracked Cap Polypore in Calvert Co., Maryland (2/23/2020). (c) johnbotany, some rights reserved (CC BY-NC). View Record Details Media by John Hall.

Cracked Cap Polypore in Baltimore Co., Maryland (4/17/2021). (c) wildluker, some rights reserved (CC BY-NC). View Record Details Media by wildluker via iNaturalist.

Cracked Cap Polypore on Black Locust in Talbot Co., Maryland (10/24/2015). View Record Details Media by Rick Borchelt.

Cracked Cap Polypore on Black Locust in Frederick Co., Maryland (1/11/2020). View Record Details Media by Emilio Concari.

Cracked Cap Polypore in Baltimore Co., Maryland (11/15/2019). (c) Emilio Concari, some rights reserved (CC BY-NC). View Record Details Media by Emilio Concari.

Cracked Cap Polypore in Baltimore Co., Maryland (5/14/2021). (c) laurabankey, some rights reserved (CC BY-NC). View Record Details Media by laurabankey via iNaturalist.

Cracked Cap Polypore in Calvert Co., Maryland (12/18/2016). View Record Details Media by Mac Plant.

Cracked Cap Polypore on Black Locust in Calvert Co., Maryland (3/5/2016). View Record Details Media by Bill Hubick.

Cracked Cap Polypore in St. Mary's Co., Maryland (5/27/2017). View Record Details Media by Jim Brighton.

Cracked Cap Polypore in Howard Co., Maryland (3/16/2018). Determined by Bob and Jo Solem. View Record Details Media by Sue Muller.

Cracked Cap Polypore in Washington Co., Maryland (9/16/2020). (c) Emily, some rights reserved (CC BY-NC). View Record Details Media by Emily via iNaturalist.

Cracked Cap Polypore in Prince George's Co., Maryland (4/12/2019). Determined by Jo Solem. View Record Details Media by Anne Looker.

A Cracked Cap Polypore on Black Locust in Baltimore City, Maryland (12/28/2015). View Record Details Media by Bill Hubick.

Cracked Cap Polypore in Frederick Co., Maryland (11/16/2019). (c) Emilio Concari, some rights reserved (CC BY-NC). View Record Details Media by Emilio Concari.

Cracked Cap Polypore in Baltimore City, Maryland (2/5/2021). (c) Matthew Beziat, some rights reserved (CC BY-NC). View Record Details Media by Matthew Beziat.

Cracked Cap Polypore in Queen Anne's Co., Maryland (5/15/2017). View Record Details Media by Wayne Longbottom.

Cracked Cap Polypore in Anne Arundel Co., Maryland (7/16/2020). (c) pmhabicht, some rights reserved (CC BY-NC). View Record Details Media by pmhabicht via iNaturalist.

Cracked Cap Polypore in Prince George's Co., Maryland (9/29/2019). (c) eehamilton, some rights reserved (CC BY-NC). View Record Details Media by eehamilton via iNaturalist.

Cracked Cap Polypore in Carroll Co., Maryland (1/16/2021). (c) Emilio Concari, some rights reserved (CC BY-NC). View Record Details Media by Emilio Concari.

Cracked Cap Polypore in Baltimore Co., Maryland (4/17/2021). (c) wildluker, some rights reserved (CC BY-NC). View Record Details Media by wildluker via iNaturalist.

Source: Wikipedia

Phellinus robiniae

Phellinus robiniae infecting black locust
Scientific classification
Domain:	Eukaryota
Kingdom:	Fungi
Division:	Basidiomycota
Class:	Agaricomycetes
Order:	Hymenochaetales
Family:	Hymenochaetaceae
Genus:	Phellinus
Species:	P. robiniae
Binomial name
*Phellinus robiniae* (Murrill, 1903) A. Ames (1913)^[1]

Phellinus robiniae, commonly called the cracked cap polypore or Phellinus rimosus,^[2] is a fungus of the family of Hymenochaetaceae. The fungus primarily infests black locusts, aided by openings caused by Megacyllene robiniae infestation, but also grows on various other trees such as Carya, oak, and Acacia. Cracked cap polypore is sympatric with most of its hosts. It has a brown spore print, leaving brown streaks on the tree below the fungus.^[3]