Astrothelium cartilagineum (Fée) Aptroot & Lücking



Felix Schumm - CC BY-SA 4.0
[ABLISE48616], Brazil, Bahia, Itamarajú, Monte Pascual, on tree bark in cerrado forest, 16°51’55’’ S, 39°24’54’’ W, 130m. Leg M. Cáceres & A. Aptroot (no ISE 48616), 18.02.2019, det. A. Aptroot, 2019.
Thallus corticate, brownish, smooth to uneven. Ascomata with apical ostioles, solitary to irregularly confluent, 0.4–0.5 mm diam., immersed to erumpent, covered by thallus except for dark ostiole surrounded by pale rim, internally with hyaline or red, K+ red crystals. Hamathecium clear. Ascospores 8/ascus, 3-septate, hyaline, 32–47 × 14–16 μm, IKI-. Chemistry: thallus and ascomata UV-, K-; ascomata internally K+ red, with anthraquinone.



Felix Schumm - CC BY-SA 4.0
[ABLISE48616], Brazil, Bahia, Itamarajú, Monte Pascual, on tree bark in cerrado forest, 16°51’55’’ S, 39°24’54’’ W, 130m. Leg M. Cáceres & A. Aptroot (no ISE 48616), 18.02.2019, det. A. Aptroot, 2019.
Thallus corticate, brownish, smooth to uneven. Ascomata with apical ostioles, solitary to irregularly confluent, 0.4–0.5 mm diam., immersed to erumpent, covered by thallus except for dark ostiole surrounded by pale rim, internally with hyaline or red, K+ red crystals. Hamathecium clear. Ascospores 8/ascus, 3-septate, hyaline, 32–47 × 14–16 μm, IKI-. Chemistry: thallus and ascomata UV-, K-; ascomata internally K+ red, with anthraquinone.



Felix Schumm - CC BY-SA 4.0
[ISE48585], Brazil, Bahia, Itamarajú, Monte Pascual, on tree bark in cerrado forest, 130 m, 16°51’55’’ S, 39°24’54’’ W. Leg. M. Cáceres & A. Aptroot (no ISE48585), 18.02.2019, det. A. Aptroot, 2019.
Thallus corticate, brownish, smooth to uneven. Ascomata with apical ostioles, solitary to irregularly confluent, 0.4–0.5 mm diam., immersed to erumpent, covered by thallus except for dark ostiole surrounded by pale rim, internally with hyaline or red, K+ red crystals. Hamathecium clear. Ascospores 8/ascus, 3-septate, hyaline, 32–47 × 14–16 μm, IKI-. Chemistry: thallus and ascomata UV-, K-; ascomata internally K+ red, with anthraquinone.



Felix Schumm - CC BY-SA 4.0
[ISE48585], Brazil, Bahia, Itamarajú, Monte Pascual, on tree bark in cerrado forest, 130 m, 16°51’55’’ S, 39°24’54’’ W. Leg. M. Cáceres & A. Aptroot (no ISE48585), 18.02.2019, det. A. Aptroot, 2019.
Thallus corticate, brownish, smooth to uneven. Ascomata with apical ostioles, solitary to irregularly confluent, 0.4–0.5 mm diam., immersed to erumpent, covered by thallus except for dark ostiole surrounded by pale rim, internally with hyaline or red, K+ red crystals. Hamathecium clear. Ascospores 8/ascus, 3-septate, hyaline, 32–47 × 14–16 μm, IKI-. Chemistry: thallus and ascomata UV-, K-; ascomata internally K+ red, with anthraquinone.



Felix Schumm - CC BY-SA 4.0
[ABL48605], Brazil, Bahia, Itamarajú, Monte Pascoal, on tree bark in cerrado forest. 16°51'56'' S, 39°24'59'' W, 130 m. Leg. M. Cáceres & A. Aptroot (no 48605), 18.02.2019, det. A. Aptroot 2019.



Felix Schumm - CC BY-SA 4.0
[ABL48605], Brazil, Bahia, Itamarajú, Monte Pascoal, on tree bark in cerrado forest. 16°51'56'' S, 39°24'59'' W, 130 m. Leg. M. Cáceres & A. Aptroot (no 48605), 18.02.2019, det. A. Aptroot 2019.