Buellia disciformis (Fr.) Mudd
Man. Brit. Lich.: 216, 1861. Basionym: Lecidea parasema var. disciformis Fr. - Nov. Sched. Crit., 8: 9, 1826.
Synonyms: Buellia major De Not.; Buellia major f. crustulata A. Massal.; Buellia parasema (Ach.) De Not.; Hafellia disciformis (Fr.) Marbach & H. Mayrhofer
Description: Thallus crustose, episubstratic or rarely endosubstratic, continuous to rimose-areolate, thin to moderately thick, pale white to greenish grey, dull, smooth, epruinose, sometimes delimited by a dark prothalline line. Phenocortex present; medulla white, without crystals of calcium oxalates, I-. Apothecia lecideine, 0.3-1.5 mm across, with a black, flat to rarely convex, epruinose disc, and a thick, persistent, raised proper margin. Proper exciple Dispersa-type, of radially arranged hyphae, the outer part of short-celled, angular, distinctly swollen, ±carbonized hyphae, the inner part prosoplectenchymatous, paler pigmented, extending from the hypothecium; epithecium brown, N-; hymenium colourless, 70-90(-100) µm high, strongly inspersed with oil droplets; paraphyses simple to moderately branched in upper part, the apical cells swollen, with a brown cap; hypothecium deep reddish brown. Asci 8-spored, clavate to cylindrical-clavate, the apical dome K/I+ dark blue with a pale, conical-pointed apical cushion (axial mass), the wall I-, but the thin outer gel I+ blue, Bacidia-type. Ascospores 1-septate, but sometimes with 2 additional false septa, not constricted at septa, soon brown, narrowly ellipsoid with pointed, paler ends, straight or sometimes slightly curved, (12-)17-27(-30) x (5.5-)7-10(-13) µm, the wall thickened subapically, but not at septum, not ornamented, Callispora-type. Pycnidia rare, black, globose, unilocular. Conidia bacilliform, straight, 2.5-6(-9) x 0.5-1 μm. Photobiont chlorococcoid. Spot tests: K+ yellow, then sometimes brownish, C-, KC-, P- or P+ faintly yellow, UV-. Chemistry: atranorin, fulgidin, plus traces of norfulgoicin and fulgoicin.
Growth form: Crustose
Substrata: bark
Photobiont: green algae other than Trentepohlia
Reproductive strategy: mainly sexual
Commonnes-rarity: (info)
Alpine belt: absent
Subalpine belt: extremely rare
Montane belt: rather rare
Dry submediterranean belt: extremely rare
Humid submediterranean belt: very rare
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
Leif Stridvall - Source: http://www.stridvall.se/la/galleries.php (Courtesy: Anita Stridvall)
P.L. Nimis; Owner: Department of Life Sciences, University of Trieste
Herbarium: TSB (13316)
2001/12/12
Pier Luigi Nimis CC BY-SA 4.0
Herbarium: TSB 9232
Bernard Bouffinier - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=577&lang=en
France, Landévennec
Bernard Bouffinier - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=577&lang=en
France, Landévennec
Bernard Bouffinier - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=577&lang=en
France, Landévennec
Ulrich Kirschbaum CC BY-SA 4.0 - Source: https://www.thm.de/lse/ulrich-kirschbaum/flechtenbilder
On Acer pseudoplatanus.
Portugal; NE-Madeira; e of Poiso pass: near Terreiros
Ulrich Kirschbaum CC BY-SA 4.0 - Source: https://www.thm.de/lse/ulrich-kirschbaum/flechtenbilder
On Acer pseudoplatanus.
Portugal; NE-Madeira; e of Poiso pass: near Terreiros
Ulrich Kirschbaum CC BY-SA 4.0 - Source: https://www.thm.de/lse/ulrich-kirschbaum/flechtenbilder
On Acer pseudoplatanus.
Portugal; NE-Madeira; e of Poiso pass: near Terreiros
Ulrich Kirschbaum CC BY-SA 4.0 - Source: https://www.thm.de/lse/ulrich-kirschbaum/flechtenbilder
On Acer pseudoplatanus.
Portugal; NE-Madeira; e of Poiso pass: near Terreiros
Growth form: Crustose
Substrata: bark
Photobiont: green algae other than Trentepohlia
Reproductive strategy: mainly sexual
Commonnes-rarity: (info)
Alpine belt: absent
Subalpine belt: extremely rare
Montane belt: rather rare
Dry submediterranean belt: extremely rare
Humid submediterranean belt: very rare
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; Owner: Department of Life Sciences, University of Trieste
Herbarium: TSB (13316)
2001/12/12
Pier Luigi Nimis CC BY-SA 4.0
Herbarium: TSB 9232
Bernard Bouffinier - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=577&lang=en
France, Landévennec
Bernard Bouffinier - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=577&lang=en
France, Landévennec
Bernard Bouffinier - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=577&lang=en
France, Landévennec
Ulrich Kirschbaum CC BY-SA 4.0 - Source: https://www.thm.de/lse/ulrich-kirschbaum/flechtenbilder
On Acer pseudoplatanus. Portugal; NE-Madeira; e of Poiso pass: near Terreiros
Ulrich Kirschbaum CC BY-SA 4.0 - Source: https://www.thm.de/lse/ulrich-kirschbaum/flechtenbilder
On Acer pseudoplatanus. Portugal; NE-Madeira; e of Poiso pass: near Terreiros
Ulrich Kirschbaum CC BY-SA 4.0 - Source: https://www.thm.de/lse/ulrich-kirschbaum/flechtenbilder
On Acer pseudoplatanus. Portugal; NE-Madeira; e of Poiso pass: near Terreiros
