Nordic J. Bot. 31, 1: 44 (2013).
The Lichenologist 41(6): 571-604 (2009).
Basionym: Caloplaca calcitrapa Nav.-Ros., Gaya & Cl. Roux, Bull. Soc. Linn. Provence 51: 147 (2000).
Synonym: Index Fungorum
Type: France, Eastern Pyrenees, Languedoc Roussellon, Tautavel, alt. 400-450 m, on calcareous rock (BCC 13385, holotypus). ITS sequence of an isotype: DQ173227.
Barcode: Data lacking.
Coordinates: Data lacking.
Type: France, Region Languedoc-Roussillon, Département Pyrénées-Orientales, eastern Pyrenees, Tautavel, on calcareous rock, 400 - 450 m, Date, Collector (BCC 13385 - holotype).
Barcode: Data lacking.
Coordinates: 42°49'N, 2°45'E.
Thallus: yellow, rarely orange, areolate or bullate, occasionally thin with a rather endolithic character. Snail-grazed forms with flat areoles are common. Areoles (80-) 129 ± 36 (-210) µm thick (n = 26) and (0.32-) 0.52 ± 0.16 (-0.97) mm wide (n = 20). Vegetative diaspores absent. Cortex indistinct, alveolate (8-) 25 ± 9 (-35) µm thick (n = 15); epinecral layer usually with intermixed crystals.
Apothecia frequent, (0.28-) 0.46 ± 0.15 (-0.75) mm diam. (n = 20). Disc flat to strongly convex in old apothecia. Exciple (40-) 100 ± 34 (-210) µm thick (n = 57), zeorine, the true exciple/thalline exciple ratio very variable; thalline exciple enlarged with age. Hymenium (60-) 68 ± 6 (-80) µm thick (n = 15). Paraphyses tips widened to (4.0-) 5.5 ± 0.75 (-7.0) µm (n = 25).
Ascospores (7.0-) 11.0 ± 2.0 (-14.0) x (4.5-) 6.0 ± 0.75 (-7.5) µm (n = 32); length/breadth ratio c. 1.83; usually thin-walled (in the Black Sea region); thick-walled, sand-clock spores observed only in two samples. Ascospore septa (3.0-) 4.5 ± 1.0 (-6.5) µm thick (n = 32), c. 0.4 of ascospore length. Conidia (2.5-) 3.3 ± 0.4 (-4.0) x (1.0-) 1.3 ± 0.25 (-1.5) µm (n = 15). (Vondrák et al. 2009: 589-591).
Photobiont: Data lacking.
Chemistry: Data lacking.
Ecology: Data lacking.
Molecular data: Genbank
Distribution: Database
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