Astrothelium clypeatum Aptroot & Gueidan



Felix Schumm - CC BY-SA 4.0
[CG3005], SE-Asia, Vietnam, Dong Nai province, Cát Tiên National Park, in the forest, along the small going to the North of the accomodation area, just before the concrete bridge, on small trees and creepers. Leg. C. Gueidan (no CG3005), 12.02.2012, det. A. Aptroot. ISOTYPE.
Thallus olive-green, somewhat minutely rimose-bullate and interspersed with lines of black prothallus. Ascomata conical in section, black, single, fully immersed in pseudostromata. Pseudostromata 0.8–1.3 mm diam., superficial, carbonized, with flattemed top, without pigment. Ostioles apical, rusty brown. Hamathecium inspersed with hyaline oil droplets. Ascospores 8/ascus, 3-septate, hyaline, 85–95 × 22–25 μm, lumina diamond-shaped or not. Chemistry: thallus and pseudostromata UV-, K-. TLC: no secondary substances detected.



Felix Schumm - CC BY-SA 4.0
[CG3005], SE-Asia, Vietnam, Dong Nai province, Cát Tiên National Park, in the forest, along the small going to the North of the accomodation area, just before the concrete bridge, on small trees and creepers. Leg. C. Gueidan (no CG3005), 12.02.2012, det. A. Aptroot. ISOTYPE.
Thallus olive-green, somewhat minutely rimose-bullate and interspersed with lines of black prothallus. Ascomata conical in section, black, single, fully immersed in pseudostromata. Pseudostromata 0.8–1.3 mm diam., superficial, carbonized, with flattemed top, without pigment. Ostioles apical, rusty brown. Hamathecium inspersed with hyaline oil droplets. Ascospores 8/ascus, 3-septate, hyaline, 85–95 × 22–25 μm, lumina diamond-shaped or not. Chemistry: thallus and pseudostromata UV-, K-. TLC: no secondary substances detected.



Felix Schumm - CC BY-SA 4.0
[CG3005], SE-Asia, Vietnam, Dong Nai province, Cát Tiên National Park, in the forest, along the small going to the North of the accomodation area, just before the concrete bridge, on small trees and creepers. Leg. C. Gueidan (no CG3005), 12.02.2012, det. A. Aptroot. ISOTYPE.
Thallus olive-green, somewhat minutely rimose-bullate and interspersed with lines of black prothallus. Ascomata conical in section, black, single, fully immersed in pseudostromata. Pseudostromata 0.8–1.3 mm diam., superficial, carbonized, with flattemed top, without pigment. Ostioles apical, rusty brown. Hamathecium inspersed with hyaline oil droplets. Ascospores 8/ascus, 3-septate, hyaline, 85–95 × 22–25 μm, lumina diamond-shaped or not. Chemistry: thallus and pseudostromata UV-, K-. TLC: no secondary substances detected.



Felix Schumm - CC BY-SA 4.0
[CG3005], SE-Asia, Vietnam, Dong Nai province, Cát Tiên National Park, in the forest, along the small going to the North of the accomodation area, just before the concrete bridge, on small trees and creepers. Leg. C. Gueidan (no CG3005), 12.02.2012, det. A. Aptroot. ISOTYPE.
Thallus olive-green, somewhat minutely rimose-bullate and interspersed with lines of black prothallus. Ascomata conical in section, black, single, fully immersed in pseudostromata. Pseudostromata 0.8–1.3 mm diam., superficial, carbonized, with flattemed top, without pigment. Ostioles apical, rusty brown. Hamathecium inspersed with hyaline oil droplets. Ascospores 8/ascus, 3-septate, hyaline, 85–95 × 22–25 μm, lumina diamond-shaped or not. Chemistry: thallus and pseudostromata UV-, K-. TLC: no secondary substances detected.