Thelidium submethorium (Vain.) Zschacke
Hedwigia, 62: 140, 1920. Basionym: Verrucaria aeneovinosa subsp. submethoria Vain. - Meddeland. Soc. Fauna Fl. Fenn., 19: 170, 1883.
Synonyms:
Description: Thallus crustose, episubstratic, olive-brown to brown-grey, thin to thick (10-130 μm), continuous to finely rimose, paraplectenchymatous, more or less subgelatinous and with transparent margins when wet. Cortex absent, but upper part of thallus occasionally with a brownish pigment; basal layer absent; photobiont cells irregularly arranged. Perithecia black, prominent, (0.25-)0.36(-0.5) mm across. Involucrellum variable, even within a single thallus, from apical and adpressed to exciple to spreading and reaching the thallus base, moderately thick (<90 μm in upper third), 0.25-0.5 mm across; exciple 0.15-0.28 mm
in diam., the wall 40-60 µm thick; hamathecium of periphyses and periphysoids, interascal filaments absent; periphyses up to 30 μm long. Asci 8-spored, ellipsoid to clavate, I-, fissitunicate, the wall thickened above, with an ocular chamber, dehiscent by extrusion of a delicate rostrum. Ascospores (0-)1-septate, hyaline, ellipsoid, 26-39 x 9-18 μm, without a perispore. 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
Periodically submerged (e.g. in creeks)
Commonnes-rarity: (info)
Alpine belt: very rare
Subalpine belt: absent
Montane belt: absent
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
Growth form: Crustose
Substrata: rocks
Photobiont: green algae other than Trentepohlia
Reproductive strategy: mainly sexual
Periodically submerged (e.g. in creeks)
Commonnes-rarity: (info)
Alpine belt: very rare
Subalpine belt: absent
Montane belt: absent
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
