Fungi › Rhytismataceae

American Tar Spot

Rhytisma americanum

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Wildlife study photograph from iNaturalist. — (c) johnklymko, some rights reserved (CC BY-NC)

All photos28

28 photos

Study shows up to four per card, from different observers, so you learn the species rather than one picture. Heart the good ones and swap any you do not like.

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Photos you add are credited to you, and you keep the copyright.

Easily confused with

Study checks a spoken answer against these, and tells you which one you named.

Where it is recorded

Records by month in Ontario.

United States	1,916
Canada	687
Ontario	643
New York	276
Michigan	261
Illinois	149
Minnesota	116
Maryland	110
Ohio	106
Virginia	104

Counts show where people looked, not only where it lives.

Classification

Kingdom	Fungi Including Lichens · Fungi
Phylum	Ascomycete Fungi · Ascomycota
Class	Leotiomycetes
Order	Rhytismatales
Family	Rhytismataceae
Genus	Tar Spot Fungi · Rhytisma

Sources

Names, taxonomy and observation counts: www.inaturalist.org
Photos and recordings: the creator and source are on each one.
How much to rely on each source

Remember the name next time.

Practise American Tar Spot with real photos from different observers. Say the name out loud, and it comes back just before you would forget it.

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