Rinodina nivalis H. Mayrhofer
J. Hattori Bot. Lab., 55: 442, 1984.
Synonyms:
Description: Thallus crustose, endosubstratic, poorly evident. Apothecia lecanorine, up to 0.5 mm across, adpressed to slightly immersed, with a more or less flat, black disc, an entire, smooth thalline margin, and a proper margin forming a parathecial ring; old apothecia may appear as lecideine, due to darkening of the outer cells of the thalline margin. Proper exciple thin laterally, expanding considerably in upper part; epithecium dark brown, K-; hymenium colourless, inspersed with oil droplets especially in the basal and peripheral parts, 100-120 µm high; paraphyses 1.5-2 µm thick at mid-level, the apical cells swollen, 5-7 µm wide, with a brown cap, the pigment extending to the upper septa; hypothecium colourless, up to 150 µm high. Asci 8-spored, 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 1-septate, brown, ellipsoid, 12-17 x 8-11.5 µm, thin-walled throughout, the old ones sometimes slightly constricted at septum, intermediate between the Physconia- and the Buellia-types. Photobiont chlorococcoid. Spot tests: K-, C-, KC-, P-, UV-. Chemistry: without lichen substances.
Growth form: Crustose endolithic
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: absent
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 endolithic
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: absent
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
