Haematomma ochroleucum (Neck.) J.R. Laundon var. ochroleucum
Lichenologist, 4: 300, 1970. Basionym: Lichen ochroleucus Neck. - Meth. Muscor.: 52, 1771.
Synonyms: Haematomma coccineum (Dicks.) Körb.; Haematomma leiphaemium (Ach.) Zopf; Haematomma vulgare A. Massal.; Lecanora haematomma (Ach.) Röhl. p.p.; Lepra leiphaema (Ach.) Mérat; Lepra sulphurea auct. ital. p.p.
Description: Thallus crustose to subleprose, episubstratic, yellowish green, forming large patches delimited by a cottony, fimbriate, whitish prothallus. Soredia abundant, granulose, 30-120 µm across, finally covering almost the entire thallus surface, giving it a subleprose appearance. Apothecia rare in epiphytic samples, more common in epilithic ones, lecanorine, 0.5-3 mm diam., at first immersed in the thallus, then subsessile and finally often immarginate, with a scarlet red disc and a sorediate thalline margin. Proper exciple very thin; epithecium scarlet red, K+ violet-red; hymenium colourless, K/I+ blue; paraphyses richly branched, especially in upper part; hypothecium colourless. Asci 8-spored, with an amyloid apical dome, approaching the Lecanora-type. Ascospores 3-7-septate, hyaline, fusiform, 30-70 x 5-7 µm. Pycnidia immersed, red in upper part, c. 0.2 mm diam. Conidia thread-like, strongly curved, 12-20 x 0.5-0.7 μm. Photobiont: chlorococcoid. Spot tests: thallus and soredia K+ pale yellow then brownish, C-, KC+ pale yellow, P+ pale yellow, UV-; disc of apothecia and top of pycnidia K+ dark purple-red. Chemistry: thallus with usnic acid, atranorin, zeorin, and porphyrilic acid; apothecia and pycnidia with anthraquinones (haematommone).
Growth form: Crustose
Photobiont: green algae other than 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)
In underhangs rarely wetted by rain
Commonnes-rarity: (info)
Alpine belt: absent
Subalpine belt: absent
Montane belt: extremely rare
Dry submediterranean belt: extremely rare
Humid submediterranean belt: common
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
Leif Stridvall - Source: http://www.stridvall.se/la/galleries.php (Courtesy: Anita Stridvall)
P.L. Nimis CC BY-SA 4.0
TSB 37517
Leif Stridvall http://www.stridvall.se/la/galleries.php (Courtesy: Anita Stridvall)
Pier Luigi Nimis - CC BY-SA 4.0; Owner: Department of Life Sciences, University of Trieste
TSB 37517
Pier Luigi Nimis - CC BY-SA 4.0; Owner: Department of Life Sciences, University of Trieste
TSB 37517
E. Pittao CC BY-SA 04
TSB 34259
E. Pittao CC BY-SA 04
TSB 34259
E. Pittao CC BY-SA 04
TSB 34259
Courtesy Danièle et Olivier Gonnet - Source: https://www.afl-lichenologie.fr/Photos_AFL/Photos_AFL_H/Haematomma_ochroleucum_ochr.htm
France, Pointe du Raz - 18/6/2012 - Finistère
Courtesy Danièle et Olivier Gonnet - Source: https://www.afl-lichenologie.fr/Photos_AFL/Photos_AFL_H/Haematomma_ochroleucum_ochr.htm
France, Pointe du Raz - 18/6/2012 - Finistère
Bernard Bouffinier- Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=261&lang=en
France, Daoulas
Bernard Bouffinier- Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=261&lang=en
France, Kergoat
Bernard Bouffinier- Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=261&lang=en
France, Daoulas
Jacques Haine - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=261&lang=en
France, Kergoat
Michel David - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=261&lang=en
France, Dineault
Joël Querellou - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=261&lang=en
France, Kergoat
Growth form: Crustose
Photobiont: green algae other than 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)
In underhangs rarely wetted by rain
Commonnes-rarity: (info)
Alpine belt: absent
Subalpine belt: absent
Montane belt: extremely rare
Dry submediterranean belt: extremely rare
Humid submediterranean belt: common
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
Leif Stridvall - Source: http://www.stridvall.se/la/galleries.php (Courtesy: Anita Stridvall)
P.L. Nimis CC BY-SA 4.0
TSB 37517
Leif Stridvall http://www.stridvall.se/la/galleries.php (Courtesy: Anita Stridvall)
Pier Luigi Nimis - CC BY-SA 4.0; Owner: Department of Life Sciences, University of Trieste
TSB 37517
Pier Luigi Nimis - CC BY-SA 4.0; Owner: Department of Life Sciences, University of Trieste
TSB 37517
E. Pittao CC BY-SA 04
TSB 34259
E. Pittao CC BY-SA 04
TSB 34259
E. Pittao CC BY-SA 04
TSB 34259
Courtesy Danièle et Olivier Gonnet - Source: https://www.afl-lichenologie.fr/Photos_AFL/Photos_AFL_H/Haematomma_ochroleucum_ochr.htm
France, Pointe du Raz - 18/6/2012 - Finistère
Courtesy Danièle et Olivier Gonnet - Source: https://www.afl-lichenologie.fr/Photos_AFL/Photos_AFL_H/Haematomma_ochroleucum_ochr.htm
France, Pointe du Raz - 18/6/2012 - Finistère
Bernard Bouffinier- Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=261&lang=en
France, Daoulas
Bernard Bouffinier- Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=261&lang=en
France, Kergoat
Bernard Bouffinier- Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=261&lang=en
France, Daoulas
Jacques Haine - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=261&lang=en
France, Kergoat
Michel David - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=261&lang=en
France, Dineault
