Acarospora imbricatula H. Magn.
Mitt. bot. Staatss. München, 9/10: 435, 1954.
Synonyms:
Description: Thallus crustose, episubstratic, medium brown, epruinose, areolate, the areoles 0.5-2 mm wide, the largest ones almost subsquamulose, with more or less free margins, contiguous to imbricate, often irregularly sulcate. Cortex 20-30 μm thick, yellowish brown in upper part, colourless in lower part, the cells 3-5 μm wide, overlain by an epinecral layer of variable thickness; algal layer irregular, discontinuous, penetrating the medulla in tooth-like columns. Apothecia lecanorine, 0.5-2 mm across, with a flat to strongly convex, dark brown, smooth disc, and a thin to thick thalline margin. Proper exciple thin and poorly developed throughout; epithecium brown; hymenium colourless, 80-140 μm high, the hymenial gel hemiamyloid, K/I+ light blue fading to light red; paraphyses 2-2.5 μm thick at base; hypothecium colourless. Asci >100-spored, clavate, the apical dome K/I-. Ascospores 1-celled, hyaline, narrowly ellipsoid, 5-7 x 2-3 μm. Pycnidia immersed. Conidia ellipsoid, c. 3 x 1 μm. Photobiont chlorococcoid. Spot tests: cortex and medulla K-, C-, KC-, P-, UV-. Chemistry: without lichen substances.
Growth form: Crustose
Substrata: rocks
Photobiont: green algae other than Trentepohlia
Reproductive strategy: mainly sexual
Subcontinental: restricted to areas with a dry-subcontinental climate (e.g. dry Alpine valleys, parts of Mediterranean Italy)
paras Aspicilia-species when young
Commonnes-rarity: (info)
Alpine belt: extremely rare
Subalpine belt: very rare
Montane belt: very 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
Growth form: Crustose
Substrata: rocks
Photobiont: green algae other than Trentepohlia
Reproductive strategy: mainly sexual
Subcontinental: restricted to areas with a dry-subcontinental climate (e.g. dry Alpine valleys, parts of Mediterranean Italy)
paras Aspicilia-species when young
Commonnes-rarity: (info)
Alpine belt: extremely rare
Subalpine belt: very rare
Montane belt: very 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
