Verrucaria mastoidea (A. Massal.) Trevis., Conspect. Verruc. p. 8, 1860

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

publication ID	https://dx.doi.org/10.3897/mycokeys.72.56223
persistent identifier	https://treatment.plazi.org/id/91F4B156-56CA-5AFC-ADBC-52B7BA34B06C
treatment provided by	MycoKeys by Pensoft
scientific name	Verrucaria mastoidea (A. Massal.) Trevis., Conspect. Verruc. p. 8, 1860
status

Treatment

Amphoridium mastoideum A. Massal., Symmict. Lich. 82, 1855. Basionym.

Type.

[Italy,] in op. Tregnago - Viacara (VER!, syntype).

Description.

Prothallus not seen. Thallus pale brownish-grey, continuous to rimose. Perithecia 0.12-0.21 mm, 3/4-immersed in thallus. Involucrellum apical, ca. 40-50 mm thick, appressed to the exciple. Exciple 0.27-0.33 mm in diam., wall black. Periphysoids ca. 40-45 × 2 mm. Ascospores 0-septate, 28-31 × 12-15 mm.

Notes.

The syntype specimen studied is probably conspecific with V. viridula .