Acarospora atrata Hue
Nouv. Arch. Mus. Hist. Nat., Paris, 5 sér. 1 (2): 142, 1909
Synonyms: Acarospora hospitans f. insolita Asta & Cl. Roux nom. inval.; Acarospora impressula auct. Eur. merid. non Th.Fr.
Description: Thallus crustose, episubstratic, rimose-areolate, forming small, up to 2(-3) cm wide patches, often on other epilithic lichens. Areoles 0.5-1.5(-2.5) mm wide, contiguous, sharply angular or elongate, dark brown to black-brown, slightly concave to slightly convex, the marginal ones not radiating; lower surface dark. Medulla whitish grey, containing many crystals; algal layer continuous. Apothecia lecanorine, deeply immersed in the areoles, angular to oval-elongate, 0.2-0.3(-0.5) mm wide, 1-3(-5) per areole, with an initially punctiform, later sometimes elongate, concave to flat disc which is usually darker than thallus, a thin, shiny, swollen thalline margin, and often a distinct parathecial ring. Proper exciple expanding around the disc, up to 40 μm thick; epithecium brown; hymenium colourless, 60-90(-130) μm high, the hymenial gel hemiamyloid, IKI+ light blue fading to light red; paraphyses stout, 2-3 μm thick at mid-level, the apical cells 2-4 μm wide; hypothecium colourless. Asci c. 100-spored, clavate, the apical dome K/I-. Ascospores 1-celled, hyaline, broadly ellipsoid, 3-5 x (1.5-)2-2.5 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
paras crustose lichens especially Aspicilia polychroma
Species of metal-rich rocks
Commonnes-rarity: (info)
Alpine belt: rare
Subalpine belt: very rare
Montane belt: very rare
Dry submediterranean belt: absent
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
Pier Luigi Nimis CC BY-SA 4.0
TSB 41610
P.L. Nimis; Owner: Department of Life Sciences, University of Trieste
Herbarium: TSB (32814)
2001/12/12
P.L. Nimis; Owner: Department of Life Sciences, University of Trieste
Herbarium: TSB (32814)
2001/12/12
apothecia
Author: Harrie Sipman - Source: http://www.bgbm.fu-berlin.de/sipman/Zschackia/AegeanLichens/Acarospora.htm
Pier Luigi Nimis CC BY-SA 4.0
TSB 41610
Pier Luigi Nimis CC BY-SA 4.0
TSB 41610
Courtesy Philippe Blaise - Source: https://likenoj.ch/index.php/samples/865
Switzerland
Magnusson A. H. (1935) Acarosporaceae, Thelocarpaceae. - In: Rabenhorst G. L.: Kryptogamen-Flora von Deutschland, Österreich, und der Schweiz-. 2nd- IX. Die Flechten. Abt. 5- 1. Gebr. Borntraeger. Leipzig, pp. 1-318. – Public Domain
Growth form: Crustose
Substrata: rocks
Photobiont: green algae other than Trentepohlia
Reproductive strategy: mainly sexual
paras crustose lichens especially Aspicilia polychroma
Species of metal-rich rocks
Commonnes-rarity: (info)
Alpine belt: rare
Subalpine belt: very rare
Montane belt: very rare
Dry submediterranean belt: absent
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
Pier Luigi Nimis CC BY-SA 4.0
TSB 41610
P.L. Nimis; Owner: Department of Life Sciences, University of Trieste
Herbarium: TSB (32814)
2001/12/12
P.L. Nimis; Owner: Department of Life Sciences, University of Trieste
Herbarium: TSB (32814)
2001/12/12
apothecia
Author: Harrie Sipman - Source: http://www.bgbm.fu-berlin.de/sipman/Zschackia/AegeanLichens/Acarospora.htm
Pier Luigi Nimis CC BY-SA 4.0
TSB 41610
Pier Luigi Nimis CC BY-SA 4.0
TSB 41610
Courtesy Philippe Blaise - Source: https://likenoj.ch/index.php/samples/865
Switzerland
