Table 3 in Taxonomy of Verrucaria species characterised by large spores, perithecia leaving pits in the rock and a pale thin thallus in Finland

Table 3. The main perithecium characters of the study species. Per = Perithecia size (mm), Inv = Involucrellum: ab = absent, ap = apical, ce = covering half of the exciple, bl = to the exciple base level, ee = enveloping the exciple, Invthick = Involucrellum thickness (mm), Exc = Exciple size in diameter (mm), Spores = Ascospore size (mm), minimum, mean and maximum values.SpeciesPerInvInvthickExcSporesV. bifurcata0.13-0.26ab, ap, bl, ee0-600.18-0.2721-26-30 × 9-11-13V. cavernarum0.15-0.28ap, ce30-600.16-0.3223-28-34 × 10-12-14V. devergens0.13-0.40ab, ap, ce0-800.20-0.3520-27-35 × 10-13-16V. difficilis0.18-0.36ce, bl40-700.16-0.2823-27-34 × 10-11-13V. foveolata0.11-0.42ab, ap, ce0-600.19-0.4224-30-37 × 10-13-17V. fuscozonata0.11-0.26bl50-600.18-0.2521-26-29 × 10-12-13V. karelica0.07-0.37ap, ce50-700.21-0.2823-28-31 × 10-12-14V. kuusamoensis0.17-0.45ce, bl, ee30-800.19-0.2921-28-34 × 9-12-14V. subdevergens0.21-0.42ce, bl, ee30-800.21-0.3423-28-35 × 11-13-15V. subjunctiva0.16-0.45ce, bl, ee40-1000.20-0.3623-30-40 × 12-14-17V. subtilis0.15-0.44ap, ce30-800.16-0.3320-25-31 × 8-10-13V. vacillans0.15-0.47ap, ce, bl30-900.15-0.2618-25-32 × 8-12-15