Dendrographa decolorans (Sm.) Ertz & Tehler
Fungal Divers., 49: 53, 2011. Basionym: Spiloma decolorans Turner & Borrer ex Sm. in Smith & Sowerby - Engl. Bot.: 34, tab. 2399, 1812.
Synonyms: Arthonia decolorans (Sm.) Erichsen; Lepraria decolorans (Sm.) Almb.; Opegrapha albocincta Nyl.; Opegrapha pitardii B. de Lesd.; Schismatomma albocinctum (Nyl.) Zahlbr.; Schismatomma decolorans (Sm.) Clauzade & Vězda; Schismatomma pitardii (B. de Lesd.) Torrente & Egea
Description: Thallus crustose, episubstratic, sorediate or not, rather thin, continuous or more or less cracked, pale grey to pale grey-brown, often with a characteristic lilac tinge (which disappears in the herbarium), sometimes delimited by a grey-black prothallus, several thalli often merging to cover very large surfaces. Soralia, when present, at first punctiform, then rapidly confluent, concolorous with or slightly paler than thallus, the farinose soredia often abundant and giving the thallus a subleprose appearance. Apothecia very rare in sorediate forms, common in fertile forms corresponding to Schismatomma albocinctum, elongate to almost circular, sessile to immersed, not constricted at base, (0.5-)0.8-1.3 mm wide, with a convex, persistently white-pruinose disc and a thin, finally sometimes excluded thalline margin. Proper exciple thin, of anticlinally arranged hyphae; epithecium brown; hymenium colourless, I+ blue; paraphysoids branched and anastomosing, 1-2 µm thick; hypothecium dark brown to carbonaceous black. Asci clavate, bitunicate, thickened at apex, with an internal K/I+ blue ring. Ascospores 1-septate, hyaline, fusiform, curved, (25-)30-37 x 4-5 µm. Pycnidia rare, black, immersed. Conidia bacilliform, straight or slightly curved, 1-septate, hyaline to pale brown, 6-7 x c. 2 µm. Photobiont trentepohlioid. Spot tests: K-, C-, KC-, P-, UV-. Chemistry: unidentified fatty acids.
Growth form: Crustose
Substrata: bark
Photobiont: Trentepohlia
Reproductive strategy: mainly asexual, by soredia, or soredia-like structures (e.g. blastidia)
Most common in areas with a humid-warm climate (e.g. most of Tyrrenian Italy)
Commonnes-rarity: (info)
Alpine belt: absent
Subalpine belt: absent
Montane belt: absent
Dry submediterranean belt: rare
Humid submediterranean belt: rather common
Padanian area: extremely rare
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
P.L. Nimis CC BY-SA 4.0
TSB 23165
P.L.Nimis; Owner: Department of Life Sciences, University of Trieste
Herbarium: TSB (38348)
2008.02.25
P.L.Nimis; Owner: Department of Life Sciences, University of Trieste
Herbarium: TSB (38346)
2008.02.25
P.L.Nimis; Owner: Department of Life Sciences, University of Trieste
Herbarium: TSB (23165)
2008.03.06
P.L.Nimis; Owner: Department of Life Sciences, University of Trieste
Herbarium: TSB (23165)
2008.03.06
P.L. Nimis CC BY-SA 4.0.
TSB 32175
P.L.Nimis; Owner: Department of Life Sciences, University of Trieste
Herbarium: TSB (38348)
2008.02.25
Courtesy Danièle et Olivier Gonnet - Source: https://www.afl-lichenologie.fr/Photos_AFL/Photos_AFL_D/Textes_D1/Dendrographa_decolorans_albo.htm
France, Ajaccio, Pointe de la Parata, alt. 20 m - Corse - (20) - sur écorce de Pistacia lentiscus
10/10/2018
Fertile specimens formerly called Schismattomma albocincum
Courtesy Danièle et Olivier Gonnet - Source: https://www.afl-lichenologie.fr/Photos_AFL/Photos_AFL_D/Textes_D1/Dendrographa_decolorans_albo.htm
France, Ajaccio, Pointe de la Parata, alt. 20 m - Corse - (20) - sur écorce de Pistacia lentiscus
10/10/2018
Fertile specimens formerly called Schismattomma albocincum
Courtesy Danièle et Olivier Gonnet - Source: https://www.afl-lichenologie.fr/Photos_AFL/Photos_AFL_D/Textes_D1/Dendrographa_decolorans_albo.htm
France, Ajaccio, Pointe de la Parata, alt. 20 m - Corse - (20) - sur écorce de Pistacia lentiscus
10/10/2018
Fertile specimens formerly called Schismattomma albocincum
Courtesy Danièle et Olivier Gonnet - Source: https://www.afl-lichenologie.fr/Photos_AFL/Photos_AFL_D/Textes_D1/Dendrographa_decolorans_albo.htm
France, Ajaccio, Pointe de la Parata, alt. 20 m - Corse - (20) - sur écorce de Pistacia lentiscus
10/10/2018
Fertile specimens formerly called Schismattomma albocincum
Courtesy Danièle et Olivier Gonnet - Source: https://www.afl-lichenologie.fr/Photos_AFL/Photos_AFL_D/Textes_D1/Dendrographa_decolorans_albo.htm
France, Ajaccio, Pointe de la Parata, alt. 20 m - Corse - (20) - sur écorce de Pistacia lentiscus
10/10/2018
Fertile specimens formerly called Schismattomma albocincum
Courtesy Danièle et Olivier Gonnet - Source: https://www.afl-lichenologie.fr/Photos_AFL/Photos_AFL_D/Textes_D1/Dendrographa_decolorans_albo.htm
France, Ajaccio, Pointe de la Parata, alt. 20 m - Corse - (20) - sur écorce de Pistacia lentiscus
10/10/2018
Fertile specimens formerly called Schismattomma albocincum
Courtesy Danièle et Olivier Gonnet - Source: https://www.afl-lichenologie.fr/Photos_AFL/Photos_AFL_D/Textes_D1/Dendrographa_decolorans_albo.htm
France, Ajaccio, Pointe de la Parata, alt. 20 m - Corse - (20) - sur écorce de Pistacia lentiscus
10/10/2018
Fertile specimens formerly called Schismattomma albocincum
Growth form: Crustose
Substrata: bark
Photobiont: Trentepohlia
Reproductive strategy: mainly asexual, by soredia, or soredia-like structures (e.g. blastidia)
Most common in areas with a humid-warm climate (e.g. most of Tyrrenian Italy)
Commonnes-rarity: (info)
Alpine belt: absent
Subalpine belt: absent
Montane belt: absent
Dry submediterranean belt: rare
Humid submediterranean belt: rather common
Padanian area: extremely rare
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
P.L. Nimis CC BY-SA 4.0
TSB 23165
P.L.Nimis; Owner: Department of Life Sciences, University of Trieste
Herbarium: TSB (38348)
2008.02.25
P.L.Nimis; Owner: Department of Life Sciences, University of Trieste
Herbarium: TSB (38346)
2008.02.25
P.L.Nimis; Owner: Department of Life Sciences, University of Trieste
Herbarium: TSB (23165)
2008.03.06
P.L.Nimis; Owner: Department of Life Sciences, University of Trieste
Herbarium: TSB (23165)
2008.03.06
P.L. Nimis CC BY-SA 4.0.
TSB 32175
P.L.Nimis; Owner: Department of Life Sciences, University of Trieste
Herbarium: TSB (38348)
2008.02.25
Courtesy Danièle et Olivier Gonnet - Source: https://www.afl-lichenologie.fr/Photos_AFL/Photos_AFL_D/Textes_D1/Dendrographa_decolorans_albo.htm
France, Ajaccio, Pointe de la Parata, alt. 20 m - Corse - (20) - sur écorce de Pistacia lentiscus
10/10/2018
Fertile specimens formerly called Schismattomma albocincum
Courtesy Danièle et Olivier Gonnet - Source: https://www.afl-lichenologie.fr/Photos_AFL/Photos_AFL_D/Textes_D1/Dendrographa_decolorans_albo.htm
France, Ajaccio, Pointe de la Parata, alt. 20 m - Corse - (20) - sur écorce de Pistacia lentiscus
10/10/2018
Fertile specimens formerly called Schismattomma albocincum
Courtesy Danièle et Olivier Gonnet - Source: https://www.afl-lichenologie.fr/Photos_AFL/Photos_AFL_D/Textes_D1/Dendrographa_decolorans_albo.htm
France, Ajaccio, Pointe de la Parata, alt. 20 m - Corse - (20) - sur écorce de Pistacia lentiscus
10/10/2018
Fertile specimens formerly called Schismattomma albocincum
Courtesy Danièle et Olivier Gonnet - Source: https://www.afl-lichenologie.fr/Photos_AFL/Photos_AFL_D/Textes_D1/Dendrographa_decolorans_albo.htm
France, Ajaccio, Pointe de la Parata, alt. 20 m - Corse - (20) - sur écorce de Pistacia lentiscus
10/10/2018
Fertile specimens formerly called Schismattomma albocincum
Courtesy Danièle et Olivier Gonnet - Source: https://www.afl-lichenologie.fr/Photos_AFL/Photos_AFL_D/Textes_D1/Dendrographa_decolorans_albo.htm
France, Ajaccio, Pointe de la Parata, alt. 20 m - Corse - (20) - sur écorce de Pistacia lentiscus
10/10/2018
Fertile specimens formerly called Schismattomma albocincum
Courtesy Danièle et Olivier Gonnet - Source: https://www.afl-lichenologie.fr/Photos_AFL/Photos_AFL_D/Textes_D1/Dendrographa_decolorans_albo.htm
France, Ajaccio, Pointe de la Parata, alt. 20 m - Corse - (20) - sur écorce de Pistacia lentiscus
10/10/2018
Fertile specimens formerly called Schismattomma albocincum
