Preliminary version 1 March 2013
Stirtonia macrocarpa Makhija & Patw.
Biovigyanam 13: 48 (1987).
Synonym: Index Fungorum
Type: India, North Andaman, Diglipur Range, Milangram, 3 January 1986, Patwardhan & Sethy (AMH 86.276 - holotype; ABL - isotype; AMH 86.347, ABL - topotype).
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Coordinates:
Thallus: crustose, spreading, covering an area of up to 5 cm diameter, contiguous, smooth, grey whitish, < 0.1 mm thick, lightly shiny, with calcium oxalate crystals, IKI- blue. Ascigerous zones delimited, round to slightly elongated in outline, o.2 - 0.4 mm diameter, raised, always higher than the thallus, white, pruinose, conspicuously brown to black dotted when abraded, with calcium oxalate crystals, without algal cells, IKI+ blue. Asci visible as brown to black dots in surface view, globose to ovoid, with 8 ascospores. Ascospores 11 - 16-septate, ellipsoid, 50-110 / 20-35 µm, cells generally equal, walls and septa >1 µm thick (Aptroot 2009: 620).
Photobiont: Green alga.
Chemistry: 2'-O-methylperlatolic acid present (TLC). Thallus and ascigerous zones C-, Pd-, KOH-, UV- (Aptroot 2009: 620).
Ecology: on bark.
Molecular data: Genbank
Distribution: Database
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