Sarcogyne cyclocarpa (Anzi) J. Steiner

in Penther & Zederbauer, Ann. K.K. naturh. Hofmus. Wien, 20: 374, 1905. Basionym: Lithographa cyclocarpa Anzi - Cat. Lich. Sondr.: 97, 1860.
Synonyms: Acarospora cyclocarpa (Anzi) Jatta; Biatorella cyclocarpa (Anzi) Lindau; Polysporina cyclocarpa (Anzi) Vězda; Sarcogyne cyclocarpa (Anzi) J. Steiner
Distribution: N - Ven, TAA (Kantvilas 1998, Knudsen & Koucourkova 2011, Nascimbene & al. 2022), Lomb (Kantvilas 1998), Piem (Isocrono & al. 2004), Lig (Giordani & al. 2016).
Description: Thallus crustose, endosubstratic, poorly evident. Apothecia lecideine, dull black, epruinose, sessile, irregular to almost star-shaped, 0.5-1(-1.5) mm across, often in small clusters, the disc rough, with carbonized concentric ridges (gyrose), often umbonate, the margin split, forming a series of segments at angles to each other, finally poorly evident. Proper exciple 40-80 µm wide, of radiating thin-walled hyphae, with a carbonized outer layer, dull reddish-brown to colourless within; epithecium c. 10 μm thick, pale yellow-orange; hymenium yellow-orange in thick sections, colourless in thin sections, 85-100 μm high, the hymenial gel hemiamyloid, K/I+ light blue fading to light red; paraphyses coherent, simple to sparingly branched, regularly septate, 1-2 μm thick at mid-level, the apical cells to 3 μm wide, with a pigmented cap; subhymenium hyaline, 40-80 µm high, I+ blue; hypothecium hyaline to yellowish, 20-25 μm thick, continuous with exciple, I-. Asci 100-200-spored, cylindrical to almost saccate, strongly thickened at apex, the apical dome K/I-, the outer coat K/I+ blue, 40-60 x 15-20 µm. Ascospores 1-celled, hyaline, ellipsoid, 3.5-5(-6) x (1-)1.5(-2.5) μm, the immature ones halonate. Photobiont chlorococcoid. Spot tests: thallus K-, C-, KC-, P-, UV-. Chemistry: without lichen substances.
Note: on dolomite and calcareous schists, more rarely on pure limestone, with optimum above treeline; probably restricted to the Alps; closely related to S. urceolata.
Growth form: Crustose
Substrata: rocks
Photobiont: green algae other than Trentepohlia
Reproductive strategy: mainly sexual

Commonnes-rarity: (info)

Alpine belt: rare
Subalpine belt: extremely rare
Oromediterranean belt: absent
Montane belt: absent
Submediterranean belt: absent
Padanian area: absent
Humid submediterranean belt: absent
Humid mediterranean belt: absent
Dry mediterranean belt: absent

pH of the substrata:

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Solar irradiation:

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Aridity:

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Eutrophication:

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Poleotolerance:

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Altitudinal distribution:

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Predictive model
Herbarium samples
Index Fungorum GBIF


P.L. Nimis; Owner: Department of Life Sciences, University of Trieste
Herbarium: TSB (34593)
2002/01/21


Courtesy Danièle et Olivier Gonnet - Source: https://www.afl-lichenologie.fr/Photos_AFL/Photos_AFL_P/Text_P_4/Polysporina_cyclocarpa.htm
France, 24/1/2017 - près du col de l'Échelle, alt. 1750 m, Névache - Hautes-Alpes


Courtesy Danièle et Olivier Gonnet - Source: https://www.afl-lichenologie.fr/Photos_AFL/Photos_AFL_P/Text_P_4/Polysporina_cyclocarpa.htm
France, 24/1/2017 - près du col de l'Échelle, alt. 1750 m, Névache - Hautes-Alpes


Courtesy Danièle et Olivier Gonnet - Source: https://www.afl-lichenologie.fr/Photos_AFL/Photos_AFL_P/Text_P_4/Polysporina_cyclocarpa.htm
France, 24/1/2017 - près du col de l'Échelle, alt. 1750 m, Névache - Hautes-Alpes



P.L. Nimis; Owner: Department of Life Sciences, University of Trieste
Herbarium: TSB (9373)
2001/11/29


Magnusson A. H. (1935) Acarosporaceae, Thelocarpaceae. - In: Rabenhorst G. L.: Kryptogamen-Flora von Deutschland, Österreich, und der Schweiz-. 2nd- IX. Die Flechten. Abt. 5- 1. Gebr. Borntraeger. Leipzig, pp. 1-318. – Public Domain