Sarcogyne nivea Kremp.
Denkschr. kgl. bayer. bot. Ges., Abt. 2, 4: 212, 1861
Synonyms:
Description: Thallus crustose, thinly episubstratic, chalky white to pale ochraceous brown, continuous to usually finely rimose, ecorticate-farinose, consisting of gelatinized hyphae with scattered algae covering the substrate. Apothecia lecideine, round to irregular in outline, 0.3-0.8(-1) mm across, with a dark brown to black (brown-red when moist), rarely bluish-pruinose, mostly flat disc, and a thin, usually persistent proper margin. Proper exciple (50-)100-120 μm wide, subparaplectenchymatous, of radiating hyphae with swollen and dark brown tips, the rim dark brown, not sharply delimited from the colourless inner part; epithecium brown; hymenium colourless, 80-110 µm high, the hymenial gel hemiamyloid, IKI+ light blue turning red; paraphyses coherent, simple to sparingly branched, regularly septate; hypothecium colourless. Asci 80-100-spored, cylindrical-clavate, strongly thickened at apex, the apical dome I-, the outer coat K/I+ blue. Ascospores 1-celled, hyaline, subglobose to broadly ellipsoid, 3-5 x (1-)2-3 μm. Photobiont chlorococcoid. Spot tests: thallus K-, C-, KC-, P-, UV-. Chemistry: without lichen substances.
Growth form: Crustose
Substrata: rocks
Photobiont: green algae other than Trentepohlia
Reproductive strategy: mainly sexual
Pioneer species
Commonnes-rarity: (info)
Alpine belt: absent
Subalpine belt: absent
Montane belt: very rare
Dry submediterranean belt: very rare
Humid submediterranean belt: very rare
Padanian area: absent
pH of the substrata:
1 2 3 4 5
Solar irradiation:
1 2 3 4 5
Aridity:
1 2 3 4 5
Eutrophication:
1 2 3 4 5
Poleotolerance:
0 1 2 3
Altitudinal distribution:
1 2 3 4 5 6
Rarity
absent
extremely rare
very rare
rare
rather rare
rather common
common
very common
extremely common
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Occurrence data
Predictive map
Growth form: Crustose
Substrata: rocks
Photobiont: green algae other than Trentepohlia
Reproductive strategy: mainly sexual
Pioneer species
Commonnes-rarity: (info)
Alpine belt: absent
Subalpine belt: absent
Montane belt: very rare
Dry submediterranean belt: very rare
Humid submediterranean belt: very rare
Padanian area: absent
pH of the substrata:
| 1 | 2 | 3 | 4 | 5 |
Solar irradiation:
| 1 | 2 | 3 | 4 | 5 |
Aridity:
| 1 | 2 | 3 | 4 | 5 |
Eutrophication:
| 1 | 2 | 3 | 4 | 5 |
Poleotolerance:
| 0 | 1 | 2 | 3 |
Altitudinal distribution:
| 1 | 2 | 3 | 4 | 5 | 6 |
Rarity
absent
extremely rare
very rare
rare
rather rare
rather common
common
very common
extremely common
Loading data...
Occurrence data
Predictive map
