Verrucaria contardonis Servít
Ann. Mus. Civ. Stor. Nat. Genova, 66: 236, 1953
Synonyms:
Description: Thallus crustose, endo- or hemiendosubstratic, 30-60 µm thick, ecorticate, whitish, smooth, continuous to sparingly, irregularly and finely rimose near the perithecia, without a distinct prothallus. Perithecia black, numerous,-immersed in the rock to projecting with the upper third, 0.15-0.2 mm across, often depressed near the ostiole. Involucrellum hemispherical or broadly conical, dimidiate or extending to the base of the perithecium, 30-40 µm thick, contiguous with exciple in upper part, often more or less diverging in lower half; exciple subglobose, the wall brownish, c. 10 µm thick; hamathecium of up to 15 µm long, simple periphyses and periphysoids, interascal filaments absent; hymenial gel hemiamyloid, I+ red (I+ blue at very low concentrations of I), K/I+ blue. Asci 8-spored, clavate I-, fissitunicate, the wall thickened above, 45-60 x 20-24 µm, Verrucaria-type. Ascospores 1-celled, hyaline, oblong-ellipsoid, 13-23 x 8-12 µm. Photobiont chlorococcoid, the cells arranged in more or less vertical rows. Spot tests: K-, C-, KC-, P-, UV-. Chemistry: without lichen substances.
Growth form: Crustose endolithic
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: absent
Montane belt: absent
Dry submediterranean belt: very 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
he Trustees of the Natural History Museum, London - CC BY.SA NC 4.0
Italy, Friuli Venezia Giulia, UD, Zomeais (Tarcento)
Growth form: Crustose endolithic
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: absent
Montane belt: absent
Dry submediterranean belt: very 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
