Verrucaria mastoidea (A. Massal.) Trevis.
Conspect. Verruc.: 8, 1860, nom.illegit.. Basionym: Amphoridium mastoideum A. Massal. - Symmicta Lich: 82, 1855.
Synonyms: Verrucaria papularis var. platyspora Garov.
Description: Thallus crustose, endosubstratic, continuous, whitish to pale grey, without a distinct prothallus. Perithecia black, globose or subglobose, 0.5-0.7(-0.9) mm across, immersed in swellings of the thallus. Involucrellum black, limited to the upper third of the perithecium, c. 40-50 μm thick, appressed to exciple or sometimes slightly diverging in lower part; exciple brown-black throughout, K+ darker brown; hamathecium of periphysoids measuring 40-45 x c. 2 μm, 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, with an ocular chamber, dehiscent by extrusion of an endotunica to form a delicate rostrum, Verrucaria-type. Ascospores 1-celled, hyaline, ellipsoid to broadly ellipsoid, 30-42 x 20-22(-24) µm. Photobiont chlorococcoid. 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
Poorly known taxon in need of further study
Commonnes-rarity: (info)
Alpine belt: rare
Subalpine belt: rather rare
Montane belt: very rare
Dry submediterranean belt: very rare
Humid submediterranean belt: extremely 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
S. Poumarat - Source: http://mycologie.catalogne.free.fr/lichens.htm
S. Poumarat - Source: http://mycologie.catalogne.free.fr/lichens.htm
Zschacke, H. (1934) Epigloeaceae, Verrucariaceae und Dermatocarpaceae. In: Dr. L. Rabenhorst‘s Kryptogamen-Flora, Band 9, Abt. 1, Teil 1. Akademische Verlagsgesellschaft, Leipzig, 695 pp. - Public Domain
Source: Servít M. 1954a. Lichenes familiae Verrucariacearum. Prag, 249 pp.
as Amphoridium mastoideum
Growth form: Crustose
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: rare
Subalpine belt: rather rare
Montane belt: very rare
Dry submediterranean belt: very rare
Humid submediterranean belt: extremely 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
S. Poumarat - Source: http://mycologie.catalogne.free.fr/lichens.htm
S. Poumarat - Source: http://mycologie.catalogne.free.fr/lichens.htm
Zschacke, H. (1934) Epigloeaceae, Verrucariaceae und Dermatocarpaceae. In: Dr. L. Rabenhorst‘s Kryptogamen-Flora, Band 9, Abt. 1, Teil 1. Akademische Verlagsgesellschaft, Leipzig, 695 pp. - Public Domain
