Rhizocarpon effiguratum (Anzi) Th. Fr.
Lichenogr. Scand., 2: 613, 1874. Basionym: Buellia effigurata Anzi - Cat. Lich. Sondr.: 90, 1860.
Synonyms: Catocarpus anzianus Müll. Arg.; Lecidea effigurata (Anzi) Stizenb.; Rhizocarpon italicum Räsänen?; Rhizocarpon sphaericum (Schaer.) Mig.; Rhizocarpon superficiale var. rugulosum (Müll. Arg.) Zahlbr.
Description: Thallus crustose, bright yellow-green, immersed in the thallus of Pleopsidium-species or areolate, sometimes delimited by a black prothallus, forming 0.5-2(-3) cm wide patches, the areoles round to angular, the marginal ones often elongate and indistinctly effigurate, weakly convex to bullate, 0.3-0.8 mm wide, smooth or scabrous, epruinose. Cortex poorly differentiated, 40-60 µm thick; medulla white, I+ pale violet-blue. Apothecia lecideine, black, round to angular, 0.3-0.6(-0.8) mm across, with a weakly to strongly convex disc and a soon excluded proper margin. Proper exciple reddish brown in outer part, K+ purple-red; epithecium brown, containing irregular crystals, K- or K+ purple-red; hymenium colourless, 60-90 µm high; paraphysoids strongly coherent, branched and anastomosing, the apical cells slightly swollen; hypothecium brown, K-. Asci 8-spored, clavate, fissitunicate, with a well-developed tholus that is K/I- in lower part and K/I+ blue near the apex, lacking an ocular chamber, Rhizocarpon-type. Ascospores 1-septate, dark brown to black, ellipsoid, (9-)11-14(-18) x (4-)5-8(-10) µm. Photobiont chlorococcoid. Spot tests: medulla K-, C-, KC-, P+ yellow. Chemistry: cortex with rhizocarpic acid, medulla with psoromic acid, and sometimes traces of stictic acid.
Growth form: Crustose
Substrata: rocks
Photobiont: green algae other than Trentepohlia
Reproductive strategy: mainly sexual
In underhangs rarely wetted by rain
paras Pleopsidium-species
Commonnes-rarity: (info)
Alpine belt: very rare
Subalpine belt: rare
Montane belt: extremely 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
Photo by Einar Timdal - Source: https://nhm2.uio.no/lav/web/index.html
Austria - GZU - SX15190
P.L. Nimis; Owner: Department of Life Sciences, University of Trieste
Herbarium: TSB (34102)
2002/01/02
P.L. Nimis CC BY-SA 04
TSB 34102
P.L. Nimis; Owner: Department of Life Sciences, University of Trieste
Herbarium: TSB (34102)
2002/01/02
Juri Nascimbene CC BY-SA 4.0
Italy, Trentino Alto Adige, TN, Paneveggio
Juri Nascimbene CC BY-SA 4.0
Italy, Trentino Alto Adige, TN, Paneveggio
Growth form: Crustose
Substrata: rocks
Photobiont: green algae other than Trentepohlia
Reproductive strategy: mainly sexual
In underhangs rarely wetted by rain
paras Pleopsidium-species
Commonnes-rarity: (info)
Alpine belt: very rare
Subalpine belt: rare
Montane belt: extremely 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
Photo by Einar Timdal - Source: https://nhm2.uio.no/lav/web/index.html
Austria - GZU - SX15190
P.L. Nimis; Owner: Department of Life Sciences, University of Trieste
Herbarium: TSB (34102)
2002/01/02
P.L. Nimis CC BY-SA 04
TSB 34102
P.L. Nimis; Owner: Department of Life Sciences, University of Trieste
Herbarium: TSB (34102)
2002/01/02
Juri Nascimbene CC BY-SA 4.0
Italy, Trentino Alto Adige, TN, Paneveggio
