Lecidella albida Hafellner
Stapfia, 76: 153, 2001.
Synonyms: Lecidea alba Schleich. non (Roth.) Flörke; Lecidella alba auct.
Description: Thallus crustose, episubstratic, whitish to grey- or yellowish green, sorediate, often delimited by a dark prothallus from neighbouting species. Soralia at first punctiform, later confluent and irregular in outline, finally often forming a more or less continuous sorediate crust; soredia whitish or grey- yellowish-green, farinose, 20-40 μm wide. Apothecia very rare, lecideine, 0.2-0.5 mm across, with a dark brown to black, mostly flat disc and a concolorous, slightly raised, persistent proper margin. Proper exciple brownish; epithecium blue-grey to brown-black, with crystals; hymenium colourless, 60-70 μm high, not inspersed with oil droplets; paraphyses rather coherent in water, more easily made free in K, mostly simple, the apical cells markedly swollen, with a dark cap; hypothecium colourless to pale yellowish brown; epithecium, hymenium and hypothecium with large (to 10 μm) blue crystals reacting N+ red. Asci 8-spored, clavate, with an intensely K/I+ blue tholus penetrated by a faintly amyloid, broadly cylindrical axial mass, and a poorly developed ocular chamber, the wall K/I-, surrounded by a K/I+ blue outer layer, approaching the Lecanora-type. Ascospores 1-celled, hyaline, broadly ellipsoid, (9-)15-18 x (6-)10-12 μm, often poorly developed. Photobiont chlorococcoid. Spot tests: thallus K+ yellow, C-, KC-, P- or P+ pale yellow (reactions better visible in thick microscopic sections), UV365+ dull orange. Chemistry: thallus with atranorin, thiophanic acid, capistratone and arthothelin.
Growth form: Crustose
Substrata: bark
Photobiont: green algae other than Trentepohlia
Reproductive strategy: mainly sexual
Commonnes-rarity: (info)
Alpine belt: absent
Subalpine belt: absent
Montane belt: very rare
Dry submediterranean belt: extremely 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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P.L. Nimis CC BY-SA 4.0
TSB 4236
Growth form: Crustose
Substrata: bark
Photobiont: green algae other than Trentepohlia
Reproductive strategy: mainly sexual
Commonnes-rarity: (info)
Alpine belt: absent
Subalpine belt: absent
Montane belt: very rare
Dry submediterranean belt: extremely 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
