Rinodina arnoldii H. Mayrhofer & Poelt
Bibl. Lichenol., 12: 54, 1979.
Synonyms:
Description: Thallus crustose, episubstratic, rather thick, continuous to usually rimose-areolate, pale grey to grey, usually without a distinct prothallus or partly with a black prothallus, the areoles 1-7 mm across, rugose, the marginal ones sometimes sublobulate. Apothecia at first cryptolecanorine to lecanorine, rapidly becoming pseudolecanorine, adnate to subsessile, abundant, up to 0.6-1.2(-1.5) mm across, with a flat to slightly convex, dark brown to black disc and a thin, entire to crenate, finally excluded thalline margin. Thalline exciple 80-100 µm wide laterally, 60-80 µm wide in lower part, the cortex 5-10 µm thick, paraplectenchymatous, of 5.5-6 µm wide cells; proper exciple 10-15 µm wide, broadening in upper part; epithecium reddish brown, K-; hymenium colourless, 70-90(-110) µm high; paraphyses 2.5-3 µm thick at mid-level, the apical cells 4-6 µm thick; hypothecium colourless, forming a stipe in lower part, 100-120 µm high. Asci 8-spored, cylindrical-clavate, the K/I+ blue tholus penetrated by a faintly amyloid apical cushion with parallel or diverging flanks, the wall K/I-, surrounded by a K/I+ blue outer layer, Lecanora-type. Ascospores (0-)1-septate, often finally with slightly unequal cells, brown, ellipsoid to broadly ellipsoid, (13-)15-20(-25.5) x (7-)8-11(-14) µm, the torus absent of poorly developed, the wall roughly warted, Milvina-type, but many of them grading into the Pachysporaria-type, the ontogeny of type A (apical wall thickening after septum formation). Photobiont chlorococcoid. Spot tests: cortex and medulla K-, C-, KC-, P-, UV-. Chemistry: zeorin (traces).
Growth form: Crustose
Substrata: rocks
Photobiont: green algae other than Trentepohlia
Reproductive strategy: mainly sexual
Poorly known taxon in need of further study
Commonnes-rarity: (info)
Alpine belt: very rare
Subalpine belt: very rare
Montane belt: absent
Dry submediterranean belt: absent
Humid submediterranean belt: absent
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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Growth form: Crustose
Substrata: rocks
Photobiont: green algae other than Trentepohlia
Reproductive strategy: mainly sexual
Poorly known taxon in need of further study
Commonnes-rarity: (info)
Alpine belt: very rare
Subalpine belt: very rare
Montane belt: absent
Dry submediterranean belt: absent
Humid submediterranean belt: absent
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
