Thelidium olivaceum auct.
. Basionym: Verrucaria olivacea Fr. - Lich. Eur. Reform.: 438, 1831, nom. illegit.
Synonyms: Arthopyrenia pseudolivacea (Nyl.) H. Olivier; Involucrothele pseudolivacea (Nyl.) Servít; Verrucaria olivacea Fr. nom. illegit.; Verrucaria pseudolivacea Nyl.
Description: Thallus crustose, thinly episubstratic, often fleck-like, greenish brown or medium brown, continuous or more or less rimose. Thallus not paraplectenchymatous; medulla often forming a black basal layer. Perithecia black, 0.1-0.2 mm across, 1/4-1/2-immersed, projecting with the upper part, often covered at base by a thalline layer. Involucrellum extending to the base of exciple, appressed or slightly diverging at base; exciple dark in upper part, pale below; hamathecium of periphyses and periphysoids, interascal filaments absent; hymenial gel I+ red (I+ blue at very low concentrations of I), K/I+ blue. Asci 8-spored, narrowly ellipsoid to clavate, I-, fissitunicate, the wall thickened above, ocular chamber usually present; dehiscence by extrusion of a delicate endotunica as a long rostrum. Ascospores 1(-3)-septate, hyaline, ellipsoid, 14-25(-34) x 6-12(-14) 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
Commonnes-rarity: (info)
Alpine belt: rather rare
Subalpine belt: rather common
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
ield Msueum of Natural History, Chicago - Public Domain taly, Rapallo, Rapallo, Montallegro.
Field Msueum of Natural History, Chicago - Public Domain taly, Rapallo, Rapallo, Montallegro.
Source: 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
G. Gibelli, in S. Garovaglio, 1865 Tentamen Dispositionis Methodicae Lichenum In Longobardia Nascentium. Mediolanum
Growth form: Crustose
Substrata: rocks
Photobiont: green algae other than Trentepohlia
Reproductive strategy: mainly sexual
Commonnes-rarity: (info)
Alpine belt: rather rare
Subalpine belt: rather common
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
ield Msueum of Natural History, Chicago - Public Domain taly, Rapallo, Rapallo, Montallegro.
Field Msueum of Natural History, Chicago - Public Domain taly, Rapallo, Rapallo, Montallegro.
Source: 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
