Staurothele areolata (Ach.) Lettau
Hedwigia, 52: 84, 1912. Basionym: Pyrenula areolata Ach. - Syn. Meth. Lich.: 122, 1814.
Synonyms: Staurothele clopima auct. p.p. non (Wahlenb.) Th. Fr.
Description: Thallus crustose, episubstratic, dark brown to brown-black in sun-forms, areolate, secondarily cracked into small groups of areoles. Areoles at first flat, then strongly convex, the fertile ones larger, often constricted at base. Perithecia black, 1(-2) per areole, 0.2-0.3 mm across, completely immersed and poorly visible, or slightly projecting, the apex appearing as a black dot. Involucrellum present, confined to the apex of exciple; hymenium I+ blue; hymenial algae oblong to narrowly oblong, 2-4 times as long as wide, 5-12(-18) x 2-4(-5) μm; paraphyses absent; periphyses and periphysoids present. Asci 2-spored, clavate, the wall thickened above, with an ocular chamber, after dehiscence with a delicate extruded endotunica, I-, K/I-. Ascospores muriform, brown, oblong-ellipsoid, often of different sizes in the ascus, the upper one 40-52 x 21-25 μm, the other to 30 μm long and 12-14 μm wide. Photobiont chlorococcoid, present in both thallus and hymenium. Spot tests: K-, C-, KC-, P-, UV-. Chemistry: without lichen substances.
Growth form: Crustose
Substrata: rocks
Photobiont: green algae other than Trentepohlia
Reproductive strategy: mainly sexual
Commonnes-rarity: (info)
Alpine belt: common
Subalpine belt: very common
Montane belt: rather 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
Current prediction (1981-2010)
Future prediction (2071-2100) SSP 1-2.6
Future prediction (2071-2100) SSP 5-8.5Predictive maps according to Francesconi et al. 2025
P.L. Nimis CC BY-SA 04
TSB 34308
P.L. Nimis; Owner: Department of Life Sciences, University of Trieste
Herbarium: TSB (34308)
2001/12/11
Growth form: Crustose
Substrata: rocks
Photobiont: green algae other than Trentepohlia
Reproductive strategy: mainly sexual
Commonnes-rarity: (info)
Alpine belt: common
Subalpine belt: very common
Montane belt: rather 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
Current prediction (1981-2010)Future prediction (2071-2100) SSP 1-2.6Future prediction (2071-2100) SSP 5-8.5Predictive maps according to Francesconi et al. 2025
P.L. Nimis CC BY-SA 04
TSB 34308
