| Generic short diagnoses: Immersed discomycetes (tar spot fungi) in leaves of trees or shrubs, opening with one or several, ± irregular slits to expose greyish to buffish discs; with filiform to ± clavate, 0-septate spores. |
Species example: |
|
 Rhytisma acerinum - DK: ahorn-rynkeplet UK: Sycamore Tarspot - immature stromata on fresh leaves |
Photo and © Jens H. Petersen Denmark, JHP-04.063 |
The picture originates from the MycoKey 2.0 DVD.
Here you will also find a larger picture along with a detailed generic description, references and an interactive, synoptical key to genera.