Preliminary version 1 May 2015
Caloplaca thuringiaca Søchting & Stordeur
Lichenologist 33, 6: 467-472 (2001)
Synonym: Index Fungorum
Type: Germany, Thüringen, Südrand des Kyffhäuser, SE von Steinthalleben, Naturschutzgebiet Ochsenburg, östlicher Bereich, nach Süden zum Habichtstal abfallender Steilhang, Mittelhang, Meßtischblatt 4632/1, 260-280 m,; auf abgestorbenen Pflanzenresten (Carex humilis); 8 September 1999
Barcode: Data lacking.
Coordinates: Data lacking.
Protolog: Data lacking.
Type locality: Data lacking.
Barcode: Data lacking.
Coordinates: Data lacking.
Thallus: crustose, on detritus, effuse, endosubstratic or forming ± flat, dispersed, c. 0.1 mm large greenish grey areolae, that may coalesce to form a continuous, irregular crust.
Apothecia numerous, aggregated or evenly dispersed over the substratum, initially often slightly immersed, later sessile, regular, zeorine to biatorine, 0.2-0.5 mm diam., 0.1 mm thick. Proper exciple entire, thin, 35-40 µm, initially prominent, later ± level with disk, persistent, initially light orange, later darker orange, in section consisting of a prosoplectenchymatous tissue with elongated cell lumina, 5-8 µm x 1-2 µm embedded in a tissue of glutinized hyphal walls that may be 1-2 µm thick.
Thalline exciple sometimes present as a greenish grey zone at the base of the margin, this being continuous withthe remainder of the vegetive thallus areole from where the apothecium was generated. Algae often numerous below the hypothecium. Hypothecium without droplets. Disc initially slightly concave, later mostly plane, but occasionally slightly convex, concolorous with or slightly darker than the margin. Hymenium 45-60 µm tall, with fine epipsamma. Paraphyses simple or very rarely branched, 1-1.5 µm thick, terminal 2-3 cells inflated, apical cell 4-5.5 µm thick, without oil drops. Asci with 8 spores.
Ascospores polarilocular, ellipsoid, 10-13 x 6-6.5 µm, septum 3-4.5 µm. Pycnidia not senn. (Sochting & Stordeur 2001, p. 470)
Photobiont: trebouxioid.
Chemistry: Teloschistin 1%, fallacinal 2%, parietinic acid 2%, emodin 1%, parietin 94%. Chemosyndrome A of Sochting (1997). All orange parts react K+ red.
Ecology: auf abgestorbenen Pflanzenresten (Carex humilis)
Molecular data: Genbank
Distribution: Database
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