Opegrapha scripta var. serpentina (Ach.) forma tremulans ** quercina.

Synonyms: Graphis serpentina var. tremulans Leight. (Monogr. Graph. p. 37); Graphis scripta var. tremulans Mudd (Brit. Lich. p. 239); Graphis scripta var. serpentina c. tremulans Hepp (Flecht. Eur. n. 890 c.)
Localirty of collection: Ad corticem Quercuum in nemore Montello.
Catalogue ID: MSNVE-25040

All images have been taken by Dr. Maria Zardini. They are property of the Natural History Museum of Venbice, and are distributed under a CC BY licencse.