Verrucaria clauzadei B. de Lesd.
Bull. Soc. Bot. France, 97: 171, 1950.
Synonyms: Verrucaria cinereorufa var. clauzadei (B. de Lesd.) Clauzade & Cl. Roux
Description: Thallus crustose, endosubstratic, continuous, violet grey to grey with tiny brown flecks, often delimited by dark prothalline lines. Perithecia black, c. 70-80/cm2, 0.25-0.5(-0.6) mm across, 1/2 to 3/4 immersed in the rock and leaving deep pits when they fall off, the projecting part usually flattened to concave. Involucrellum 60-80 µm thick, dimidiate; exciple c. 0.25 mm across, dark throughout; hamathecium of periphysoids measuring 35-50 x 2-2.5 µm, interascal filaments absent; hymenial gel hemiamyloid, I+ red (I+ blue at very low concentrations of I), K/I+ blue. Asci 8-spored, clavate, fissitunicate, the wall not amyloid, not or only slightly thickened above, Verrucaria-type. Ascospores 1-celled, hyaline, ellipsoid, (25-)28-35(-39) x 12-15(-17) µm. Photobiont chlorococcoid. 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: extremely rare
Subalpine belt: very rare
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
Courtesy Danièle et Olivier Gonnet - Source: https://www.afl-lichenologie.fr/Photos_AFL/Photos_AFL_V/Texte_V/Verrucaria_clauzadei.htm
France, 10/5/2015 - session AFL en Dordogne, Salignac-Eyverigues
Courtesy Danièle et Olivier Gonnet - Source: https://www.afl-lichenologie.fr/Photos_AFL/Photos_AFL_V/Texte_V/Verrucaria_clauzadei.htm
France, 10/5/2015 - session AFL en Dordogne, Salignac-Eyverigues
Courtesy Danièle et Olivier Gonnet - Source: https://www.afl-lichenologie.fr/Photos_AFL/Photos_AFL_V/Texte_V/Verrucaria_clauzadei.htm
France, 10/5/2015 - session AFL en Dordogne, Salignac-Eyverigues
Courtesy Danièle et Olivier Gonnet - Source: https://www.afl-lichenologie.fr/Photos_AFL/Photos_AFL_V/Texte_V/Verrucaria_clauzadei.htm
France, 10/5/2015 - session AFL en Dordogne, Salignac-Eyverigues
Courtesy Danièle et Olivier Gonnet - Source: https://www.afl-lichenologie.fr/Photos_AFL/Photos_AFL_V/Texte_V/Verrucaria_clauzadei.htm
France, 10/5/2015 - session AFL en Dordogne, Salignac-Eyverigues
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: extremely rare
Subalpine belt: very rare
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
Courtesy Danièle et Olivier Gonnet - Source: https://www.afl-lichenologie.fr/Photos_AFL/Photos_AFL_V/Texte_V/Verrucaria_clauzadei.htm
France, 10/5/2015 - session AFL en Dordogne, Salignac-Eyverigues
Courtesy Danièle et Olivier Gonnet - Source: https://www.afl-lichenologie.fr/Photos_AFL/Photos_AFL_V/Texte_V/Verrucaria_clauzadei.htm
France, 10/5/2015 - session AFL en Dordogne, Salignac-Eyverigues
Courtesy Danièle et Olivier Gonnet - Source: https://www.afl-lichenologie.fr/Photos_AFL/Photos_AFL_V/Texte_V/Verrucaria_clauzadei.htm
France, 10/5/2015 - session AFL en Dordogne, Salignac-Eyverigues
Courtesy Danièle et Olivier Gonnet - Source: https://www.afl-lichenologie.fr/Photos_AFL/Photos_AFL_V/Texte_V/Verrucaria_clauzadei.htm
France, 10/5/2015 - session AFL en Dordogne, Salignac-Eyverigues
