Preliminary version 1 October 2013

Stirtonia ramosa Makhija & Patw.

Biovigyanam 13: 49 (1987).

Synonym: Index Fungorum

Type: India, South Andaman, Alexandria Island, 6 March 1983, Patwardhan, Nagarkar & Sethy (AMH 85.1122 - holotype; ABL - isotype).
Barcode: Data lacking.
Coordinates: Data lacking.

 

Thallus: spreading, covering an area of up to 5 cm diameter, contiguous, smooth, dirty whitish to pale olivaceous, < 0.1 mm thick, slightly shiny, without calcium oxalate crystals, IKI-. Ascigerous zones delimited, lirelliform, irregularly stellately branched, ca. 0.1 - 0.3 mm wide, anastomosing to form a network of several centimeter, not or slightly raised, pale brown, not pruinose, not dotted, with calcium oxalate crystals (only near the upper surface with small crystals, probably of the secondary compounds mentioned below), without algal cells, IKI-. Asci invisible in surface view, globose to ovoid, with 8 ascospores. Ascospores (4-)5 - 6-septate, ellipsoid, 45 - 65 / 15 - 22 µm, all cells enlarged only in young ascospores), walls and septa > 1 µm thick, postmature ascospores becoming brown (Aptroot 2009: 622).

Photobiont: Green algae.

Chemistry: 2'-O-methylnorsuperphyllinic acid and 4'-O-demethylsuperconfluentic acid (TLC). Thallus and ascigerous zones C-, Pd-, K-, UV- (Aptroot 2009: 622).

Ecology: On bark.

Molecular data: Genbank

Distribution: Database

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