Biatorella fossarum (Fr.) Th. Fr.
Lichenogr. Scand., 2: 397, 1874. Basionym: Lecidea fossarum Dufour ex Fr. - Lichenogr. Eur. Ref.: 364, 1831.
Synonyms: Biatora rousselii Durieu & Mont.; Biatorella rousselii (Durieu & Mont.) De Not.
Description: Thallus crustose, pale grey, thin and inconspicuous, granulose and poorly delimited. Apothecia biatorine, 0.4-1(-1.1) mm across, pale orange-red to grey-brown, not constricted at base, with a rapidly convex disc, emarginate. Proper exciple poorly developed, of more or less parallel, colourless to pale yellow hyphae, I+ blue; epithecium almost colourless to pale orange-yellow, K-, with a layer of crystals; hymenium colourless to pale yellow, I+ deep blue; paraphyses richly branched and anastomosing in upper part, 1.5-2 µm thick in lower part, the apical cells 4-7 µm wide; hypothecium pale grey-yellow. Asci >100-spored, cylindrical to clavate, with a simple, K/I± faintly blue apical dome surrounded by weakly amyloid wall layers, Biatorella-type (see Hafellner & Casares-Porcel 1992). Ascospores 1-celled, hyaline, cylindrical, 8-13 x 2.3-3 µm. Photobiont chlorococcoid. Spot tests: K-, C-, KC-, P-, UV-. Chemistry: without lichen substances.
Growth form: Crustose
Substrata: soil, terricolous mosses, and plant debris
Photobiont: green algae other than Trentepohlia
Reproductive strategy: mainly sexual
Pioneer species
Commonnes-rarity: (info)
Alpine belt: absent
Subalpine belt: absent
Montane belt: extremely 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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Occurrence data
Predictive map
Growth form: Crustose
Substrata: soil, terricolous mosses, and plant debris
Photobiont: green algae other than Trentepohlia
Reproductive strategy: mainly sexual
Pioneer species
Commonnes-rarity: (info)
Alpine belt: absent
Subalpine belt: absent
Montane belt: extremely 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

