Aspidothelium glabrum Lücking, Aptroot & Sipman



Felix Schumm - CC BY-SA 4.0
[ABL11932], Brazil, Amazonia, Fazenda São Francisco off BR319, 30 km N of Porto Velho. On tree bark in primary rain forest. 8°24’33’’ S, 63°58’56’’ W, 100 m. Leg. M. Cáceres & A. Aptroot (no 11932),15.03.2012, det A. Aptroot, 2012.
Thallus pale mineral grey to immersed, surrounded by an up to 0.2 mm wide black line of hypothallus. Ascomata sessile, hemispherical to barrel-shaped, smooth, 0.2–0.4 mm diam, pale cream to grey, glossy, towards the top with brownish grey areas and with a depressed ostiole, which is visible in cross sections as a black cup somewhat below the top of the perithecia. Hamathecium not inspersed, filaments partly branched. Ascospore 4/ascus, fusiform, hyaline, densely muriform, 7–9 × 1–3 septate, with partly oblique septa, 40–50 × 12–15 μm.



Felix Schumm - CC BY-SA 4.0
[ABL11932], Brazil, Amazonia, Fazenda São Francisco off BR319, 30 km N of Porto Velho. On tree bark in primary rain forest. 8°24’33’’ S, 63°58’56’’ W, 100 m. Leg. M. Cáceres & A. Aptroot (no 11932),15.03.2012, det A. Aptroot, 2012.
Thallus pale mineral grey to immersed, surrounded by an up to 0.2 mm wide black line of hypothallus. Ascomata sessile, hemispherical to barrel-shaped, smooth, 0.2–0.4 mm diam, pale cream to grey, glossy, towards the top with brownish grey areas and with a depressed ostiole, which is visible in cross sections as a black cup somewhat below the top of the perithecia. Hamathecium not inspersed, filaments partly branched. Ascospore 4/ascus, fusiform, hyaline, densely muriform, 7–9 × 1–3 septate, with partly oblique septa, 40–50 × 12–15 μm.



Felix Schumm - CC BY-SA 4.0
[ABL11932], Brazil, Amazonia, Fazenda São Francisco off BR319, 30 km N of Porto Velho. On tree bark in primary rain forest. 8°24’33’’ S, 63°58’56’’ W, 100 m. Leg. M. Cáceres & A. Aptroot (no 11932),15.03.2012, det A. Aptroot, 2012.
Thallus pale mineral grey to immersed, surrounded by an up to 0.2 mm wide black line of hypothallus. Ascomata sessile, hemispherical to barrel-shaped, smooth, 0.2–0.4 mm diam, pale cream to grey, glossy, towards the top with brownish grey areas and with a depressed ostiole, which is visible in cross sections as a black cup somewhat below the top of the perithecia. Hamathecium not inspersed, filaments partly branched. Ascospore 4/ascus, fusiform, hyaline, densely muriform, 7–9 × 1–3 septate, with partly oblique septa, 40–50 × 12–15 μm.