Aspicilia subdepressa Arnold
Verh. zool.-bot Ges. Wien, 19: 611, 1869.
Synonyms: Lecanora subdepressa (Arnold) Nyl.; Pachyospora subdepressa (Arnold) M. Choisy
Description: Thallus crustose, episubstratic, rimose- to verrucose-areolate, 0.1-0.3 mm thick, brown or green-brown, rarely grey-white pruinose, forming 1.5-6 cm wide patches, sometimes delimited by a discontinuous, dark prothallus. Areoles 0.2-1(-2) mm wide, angular or partly rounded, slightly to strongly convex; sometimes producing marginal, wart-like isidioid outgrowths in sterile specimens; marginal areoles more or less slightly elongated. Cortex with a brown upper layer overlain by a thin epinecral layer, the lower part colourless, without crystals; medulla white, I-, rich in crystals insoluble in K and in N. Apothecia lecanorine-aspicilioid, 0.2-0.8 mm across, round, scarce to abundant, with a concave, black, epruinose disc, and a thick, prominent thalline margin. Epithecium grey-green, 8-15 μm thick, N+ emerald green, usually without crystals; hymenium colourless, 100-120 μm high, I+ blue turning reddish brown; paraphyses sparingly branched, anastomosing and submoniliform in upper part, 1.5-2.5 μm thick at base, the terminal cells to 5 μm wide; hypothecium colourless, 30-40 μm high, I+ blue, filled with crystals. Asci 8-spored, clavate, the thin outer coat K/I+ blue, the wall and apical dome K/I-, with 1-2-seriately arranged spores. Ascospores 1-celled, hyaline, ellipsoid, 18-27 x 10-17 μm, thin-walled. Pycnidia pyriform, the wall colourless except around the ostiole. Conidia short-filiform, straight to slightly curved, 7-12 μm long. Photobiont chlorococcoid. Spot tests: cortex and medulla K+ yellow, C-, KC-, P+ orange. Chemistry: stictic acid complex, incl. norstictic acid in low amounts.
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: absent
Subalpine belt: extremely rare
Montane belt: rare
Dry submediterranean belt: extremely rare
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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Occurrence data
Predictive map
Claude Roux - Source: Roux C., Nordin A., Tibell L., Sohrabi M. 2011. Quelques espèces d’Aspicilia peu connues ou nouvelles des Pyrénées-Orientales (France). Bull. Soc. linn. Provence, nr. spec. 14: 177-227.
Claude Roux - Sourece: Roux C., Nordin A., Tibell L., Sohrabi M. 2011. Quelques espèces d’Aspicilia peu connues ou nouvelles des Pyrénées-Orientales (France). Bull. Soc. linn. Provence, nr. spec. 14: 177-227.
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: absent
Subalpine belt: extremely rare
Montane belt: rare
Dry submediterranean belt: extremely rare
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
Claude Roux - Source: Roux C., Nordin A., Tibell L., Sohrabi M. 2011. Quelques espèces d’Aspicilia peu connues ou nouvelles des Pyrénées-Orientales (France). Bull. Soc. linn. Provence, nr. spec. 14: 177-227.
