Verrucaria veronensis A. Massal., Ric. Auton. Lich. Crost. 173, 1852

Pykaelae, Juha, Kantelinen, Annina & Myllys, Leena, 2020, Taxonomy of Verrucaria species characterised by large spores, perithecia leaving pits in the rock and a pale thin thallus in Finland, MycoKeys 72, pp. 43-92 : 43

Verrucaria veronensis A. Massal., Ric. Auton. Lich. Crost. 173, 1852

Type.

[Italy,] S. Leonardo, L. Tonini (VER!, syntype); ad saxa eocenica circa urbem Veronam (S. Leonardo), leg. Tonini, Massalongo Lichenes Ital. Exsiccatae 8 (VER!, syntype); Massalongo, Lich. Ital. exs. 8 (UPS!, syntype).

Description.

Prothallus absent. Thallus greenish-grey or grey with some brown pigmentation, epilithic, rimose, ca. 0.2-0.3(-0.4) mm thick. Perithecia 0.12-0.32 mm, 3/4-1-immersed in thallus. Involucrellum apical, ca. 60-70 mm thick. Exciple ca. (0.2-)0.3-0.5 mm in diam., often longer than broad, wall dark. Ascospores 0-septate, 27-35 × 11-15 mm.

Notes.

The type material of the species is morphologically similar to V. viridula and, based on the morphological similarity, the species is likely to be conspecific with V. viridula .