Gyalidea asteriscus (Anzi) Aptroot & Lücking

Bibl. Lichenol., 86: 67, 2003. Basionym: Solorinella asteriscus Anzi - Cat. Lich. Sondr.: 37, 1860.
Synonyms:
Distribution: N - TAA (Farkas & Lökos 1994), Lomb (Farkas & Lokos 1994), Piem (TSB 35294), VA (Farkas & Lökos 1994, Piervittori & Isocrono 1999).
Description: Thallus crustose, white-pruinose, thin and more visible in the wet state, reduced to 3-7 short, whitish grey to greenish grey, broadly triangular lobes radiating all around the apothecia. Lobes composed of branched and partly anastomosing, parallel and more or less radiating hyphae with thin lumina and thick, strongly gelatinized walls. Apothecia frequent, immersed, 0.5-2(-4) mm across, with a brownish black, concave to flat, smooth disc. Proper exciple of branched and anastomosing, radially arranged hyphae; epithecium greenish brown; hymenium colourless, 140-155 µm high, the hymenial gel not amyloid; paraphyses simple, 1-2 µm thick, not apically thickened, free; hypothecium colourless, lying above a layer of algae. Asci 32-64-spored, narrowly clavate, thin-walled except for a slightly thickened apical tholus, K/I-, with a ± small ocular chamber. Ascospores 1-septate (a few rarely up to 3-septate), slightly constricted at septa, hyaline, narrowly ellipsoid to kidney-shaped, (7-)11-17 x (2-)3-4(-7) µm. Photobiont chlorococcoid. Spot tests: K-, C-, KC-, P-, UV-. Chemistry: without lichen substances.
Note: a typical lichen of steppe grasslands on loess, whose distribution extends widely into Central Asia, found on Loess and (in the Alps) on soil deriving from calcareous schists; restricted to strongly continental Alpine valleys in Italy.
Growth form: Crustose
Substrata: soil, terricolous mosses, and plant debris
Photobiont: green algae other than Trentepohlia
Reproductive strategy: mainly sexual
Subcontinental: restricted to areas with a dry-subcontinental climate (e.g. dry Alpine valleys, parts of Mediterranean Italy)

Commonnes-rarity: (info)

Alpine belt: absent
Subalpine belt: extremely rare
Oromediterranean belt: absent
Montane belt: extremely rare
Submediterranean belt: extremely rare
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 (34296)
2001/12/07



P.L. Nimis; Owner: Department of Life Sciences, University of Trieste
Herbarium: TSB (34296)
2001/12/07



P.L. Nimis; Owner: Department of Life Sciences, University of Trieste
Herbarium: TSB (35294)
2002/07/14



P.L. Nimis; Owner: Department of Life Sciences, University of Trieste
Herbarium: TSB (35294)
2002/07/14


Zahlbruckner A. 1926. Lichenes (Flechten). In: Engler A. (ed.): Die natürlichen Pflanzenfamilien. 2nd ed., vol 8, W. Engelmann, Leipzig, 270 pp.