Astrothelium alboverrucoides Aptroot



Felix Schumm CC BY-SA 4.0
[ABL 23673], Indonesia, Sumatra, Aceh, 35 km NNW of Kutacane, tropical rainforest, on tree, 800 m, 3°40’ N, 97°35’ E. leg. R.V. Hensen, 05.1988, det. A. Aptroot, 1988. HOLOTYPE.
Thallus corticate, smooth, somewhat shiny, greyish green, surrounded by a black prothallus line, c. 0.4 mm wide. Ascomata globose, 0.8–1.4 mm diam, mostly single, with often constricted base. Ostioles apical, not fused ochraceous to brown. Hamathecium inspersed with oil globules. Ascospores 4/ascus, hyaline, muriform, 140–190 × 20–30 μm with a distinctly thickened median septum. Chemistry: thallus and pseudostromata K-, UV-. TLC: no secondary substances detected



Felix Schumm CC BY-SA 4.0
[ABL 23673], Indonesia, Sumatra, Aceh, 35 km NNW of Kutacane, tropical rainforest, on tree, 800 m, 3°40’ N, 97°35’ E. leg. R.V. Hensen, 05.1988, det. A. Aptroot, 1988. HOLOTYPE.
Thallus corticate, smooth, somewhat shiny, greyish green, surrounded by a black prothallus line, c. 0.4 mm wide. Ascomata globose, 0.8–1.4 mm diam, mostly single, with often constricted base. Ostioles apical, not fused ochraceous to brown. Hamathecium inspersed with oil globules. Ascospores 4/ascus, hyaline, muriform, 140–190 × 20–30 μm with a distinctly thickened median septum. Chemistry: thallus and pseudostromata K-, UV-. TLC: no secondary substances detected



Felix Schumm CC BY-SA 4.0
[ABL 23673], Indonesia, Sumatra, Aceh, 35 km NNW of Kutacane, tropical rainforest, on tree, 800 m, 3°40’ N, 97°35’ E. leg. R.V. Hensen, 05.1988, det. A. Aptroot, 1988. HOLOTYPE.
Thallus corticate, smooth, somewhat shiny, greyish green, surrounded by a black prothallus line, c. 0.4 mm wide. Ascomata globose, 0.8–1.4 mm diam, mostly single, with often constricted base. Ostioles apical, not fused ochraceous to brown. Hamathecium inspersed with oil globules. Ascospores 4/ascus, hyaline, muriform, 140–190 × 20–30 μm with a distinctly thickened median septum. Chemistry: thallus and pseudostromata K-, UV-. TLC: no secondary substances detected



Felix Schumm CC BY-SA 4.0
[ABL 23673], Indonesia, Sumatra, Aceh, 35 km NNW of Kutacane, tropical rainforest, on tree, 800 m, 3°40’ N, 97°35’ E. leg. R.V. Hensen, 05.1988, det. A. Aptroot, 1988. HOLOTYPE.
Thallus corticate, smooth, somewhat shiny, greyish green, surrounded by a black prothallus line, c. 0.4 mm wide. Ascomata globose, 0.8–1.4 mm diam, mostly single, with often constricted base. Ostioles apical, not fused ochraceous to brown. Hamathecium inspersed with oil globules. Ascospores 4/ascus, hyaline, muriform, 140–190 × 20–30 μm with a distinctly thickened median septum. Chemistry: thallus and pseudostromata K-, UV-. TLC: no secondary substances detected



Felix Schumm CC BY-SA 4.0
[ABL 23673], Indonesia, Sumatra, Aceh, 35 km NNW of Kutacane, tropical rainforest, on tree, 800 m, 3°40’ N, 97°35’ E. leg. R.V. Hensen, 05.1988, det. A. Aptroot, 1988. HOLOTYPE.
Thallus corticate, smooth, somewhat shiny, greyish green, surrounded by a black prothallus line, c. 0.4 mm wide. Ascomata globose, 0.8–1.4 mm diam, mostly single, with often constricted base. Ostioles apical, not fused ochraceous to brown. Hamathecium inspersed with oil globules. Ascospores 4/ascus, hyaline, muriform, 140–190 × 20–30 μm with a distinctly thickened median septum. Chemistry: thallus and pseudostromata K-, UV-. TLC: no secondary substances detected



Felix Schumm CC BY-SA 4.0
[ABL 23673], Indonesia, Sumatra, Aceh, 35 km NNW of Kutacane, tropical rainforest, on tree, 800 m, 3°40’ N, 97°35’ E. leg. R.V. Hensen, 05.1988, det. A. Aptroot, 1988. HOLOTYPE.
Thallus corticate, smooth, somewhat shiny, greyish green, surrounded by a black prothallus line, c. 0.4 mm wide. Ascomata globose, 0.8–1.4 mm diam, mostly single, with often constricted base. Ostioles apical, not fused ochraceous to brown. Hamathecium inspersed with oil globules. Ascospores 4/ascus, hyaline, muriform, 140–190 × 20–30 μm with a distinctly thickened median septum. Chemistry: thallus and pseudostromata K-, UV-. TLC: no secondary substances detected



Felix Schumm CC BY-SA 4.0
[ABL 23673], Indonesia, Sumatra, Aceh, 35 km NNW of Kutacane, tropical rainforest, on tree, 800 m, 3°40’ N, 97°35’ E. leg. R.V. Hensen, 05.1988, det. A. Aptroot, 1988. HOLOTYPE.
Thallus corticate, smooth, somewhat shiny, greyish green, surrounded by a black prothallus line, c. 0.4 mm wide. Ascomata globose, 0.8–1.4 mm diam, mostly single, with often constricted base. Ostioles apical, not fused ochraceous to brown. Hamathecium inspersed with oil globules. Ascospores 4/ascus, hyaline, muriform, 140–190 × 20–30 μm with a distinctly thickened median septum. Chemistry: thallus and pseudostromata K-, UV-. TLC: no secondary substances detected



Felix Schumm CC BY-SA 4.0
[ABL 23673], Indonesia, Sumatra, Aceh, 35 km NNW of Kutacane, tropical rainforest, on tree, 800 m, 3°40’ N, 97°35’ E. leg. R.V. Hensen, 05.1988, det. A. Aptroot, 1988. HOLOTYPE.
Thallus corticate, smooth, somewhat shiny, greyish green, surrounded by a black prothallus line, c. 0.4 mm wide. Ascomata globose, 0.8–1.4 mm diam, mostly single, with often constricted base. Ostioles apical, not fused ochraceous to brown. Hamathecium inspersed with oil globules. Ascospores 4/ascus, hyaline, muriform, 140–190 × 20–30 μm with a distinctly thickened median septum. Chemistry: thallus and pseudostromata K-, UV-. TLC: no secondary substances detected



Felix Schumm CC BY-SA 4.0
[ABL 23673], Indonesia, Sumatra, Aceh, 35 km NNW of Kutacane, tropical rainforest, on tree, 800 m, 3°40’ N, 97°35’ E. leg. R.V. Hensen, 05.1988, det. A. Aptroot, 1988. HOLOTYPE.
Thallus corticate, smooth, somewhat shiny, greyish green, surrounded by a black prothallus line, c. 0.4 mm wide. Ascomata globose, 0.8–1.4 mm diam, mostly single, with often constricted base. Ostioles apical, not fused ochraceous to brown. Hamathecium inspersed with oil globules. Ascospores 4/ascus, hyaline, muriform, 140–190 × 20–30 μm with a distinctly thickened median septum. Chemistry: thallus and pseudostromata K-, UV-. TLC: no secondary substances detected



Felix Schumm CC BY-SA 4.0
[ABL 23673], Indonesia, Sumatra, Aceh, 35 km NNW of Kutacane, tropical rainforest, on tree, 800 m, 3°40’ N, 97°35’ E. leg. R.V. Hensen, 05.1988, det. A. Aptroot, 1988. HOLOTYPE.
Thallus corticate, smooth, somewhat shiny, greyish green, surrounded by a black prothallus line, c. 0.4 mm wide. Ascomata globose, 0.8–1.4 mm diam, mostly single, with often constricted base. Ostioles apical, not fused ochraceous to brown. Hamathecium inspersed with oil globules. Ascospores 4/ascus, hyaline, muriform, 140–190 × 20–30 μm with a distinctly thickened median septum. Chemistry: thallus and pseudostromata K-, UV-. TLC: no secondary substances detected