Acarospora gallica H. Magn.
K. Svenska Vetensk.-Akad. Handl., ser. 3, 7, 4: 282, 1929.
Synonyms: Acarospora gallica var. devastata (Eitner) H. Magn.; Acarospora hungarica H. Magn.
Description: Thallus crustose, episubstratic, of dispersed or contiguous areoles, pale yellowish brown to dark brown, epruinose, matt, forming up to 2 cm wide patches. Areoles 0.2-0.6(-1.5) mm wide, 0.2-0.5 mm thick, usually flat, angular to round, broadly attached, sometimes reduced to a thin rim around a single apothecium, becoming subsquamulose and lobulate in well-developed specimens; lower surface of well-developed areoles pale. Cortex (15-)20-35 μm thick, paraplectenchymatous, the upper layer brown, the lower layer colourless, without an epinecral layer; algal layer continuous, 50-100 µm thick; medulla white, up to 100 μm thick, of intricate, thick-walled hyphae. Apothecia 1-10(-12) per areole, 0.1-0.6(-0.8) mm across, with a usually smooth, brown (darker than thallus, reddish when wet), epruinose disc and an indistinct thalline margin. Proper exciple thin, to 10-15 μm wide; epithecium reddish brown, 10-20 μm high; hymenium colourless, 75-100 μm high, IKI+ red or blue; paraphyses 1.5-2 μm thick, mostly simple, the apical cells up to c. 3 μm wide; subhymenium usually 10-30(-50) μm high and IKI+ blue; hypothecium narrow, to 15 μm high, continuous with exciple. Asci 100-200-spored, clavate, the apical dome K/I-, 50-80 x 15-30 μm. Ascospores 1-celled, hyaline, narrowly to broadly ellipsoid, (2.5-)3.5-5(-6.5) x 1.5-2 μm. Pycnidia globose, usually visible as brown-red dots. Conidia hyaline, simple, mostly 2.5 x 1 μm. Photobiont chlorococcoid. Spot tests: cortex and/or medulla K-, C+ red, KC+ red, P-. Chemistry; gyrophoric and lecanoric acids.
Growth form: Crustose
Substrata: rocks
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: rare
Humid submediterranean belt: rather 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
P.L. Nimis; Owner: Department of Life Sciences, University of Trieste
Herbarium: TSB (11365)
2001/12/12
P.L. Nimis; Owner: Department of Life Sciences, University of Trieste
Herbarium: TSB (32673)
2001/12/12
Growth form: Crustose
Substrata: rocks
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: rare
Humid submediterranean belt: rather 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
P.L. Nimis; Owner: Department of Life Sciences, University of Trieste
Herbarium: TSB (11365)
2001/12/12
