Thelochroa montinii A. Massal.
Symmicta Lich.: 86, 1855.
Synonyms: Porocyphus montinii (A. Massal.) Arnold; Psorotichia montinii (A. Massal.) Forssell; Psorotichia recondita Arnold; Pyrenocarpon montinii (A. Massal.) Trevis.
Description: Thallus crustose, homoiomerous, 50-65 µm thick, minutely granulose to almost powdery, usually forming 1-2(-3) mm wide, orbicular patches, rarely somewhat spreading. Granules 0.1-0.3(-0.4) mm wide, diffuse or densely aggregated, blackish when dry, dark olive-brown and weakly subgelatinous when wet. Thallus anatomy paraplectenchymatous, with a loose network of more or less isodiametric, 2-3 µm wide cells enclosing the photobiont cells. Apothecia very small, 0.1-0.2(-0.3) mm across, with an initially punctiform but soon expanded, dark orange-brown, concave disc and a shallow to prominent, persisting, sometimes granulose thalline margin. Proper exciple cupuliform, prosoplectenchymatous, very thin (to 10 µm wide); epithecium orange-brown, up to 15 µm high, K-; hymenium colourless, 70-90 µm high, I+ blue; paraphyses branched and anastomosing, slightly constricted at septa, 2-3 µm thick. Asci 8-spored, narrowly clavate, rather thick-walled, without internal amyloid structures, 50-60 x 11-20 µm. Ascospores 1-celled, hyaline, thin-walled, subglobose to broadly ellipsoid, 8-15 x 5-9 µm. Photobiont cyanobacterial, chroococcoid, of a few cells penetrated by haustoria, measuring 6-13 x 4-7 µm, surrounded by a gelatinous sheath which is yellowish brown near the thallus surface. Spot tests: all negative. Chemistry: without lichen substances.
Growth form: Crustose
Substrata: rocks
Photobiont: cyanobacteria, coccaceous (e.g. Gloeocapsa)
Reproductive strategy: mainly sexual
On otherwise dry surfaces with short periods of water seepage after rain
Commonnes-rarity: (info)
Alpine belt: absent
Subalpine belt: absent
Montane belt: very rare
Dry submediterranean belt: rare
Humid submediterranean belt: 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
P.L. Nimis CC BY-SA 04
TSB 16802
P.L. Nimis; Owner: Department of Life Sciences, University of Trieste
Herbarium: TSB (16802)
2001/12/11
thallus with apothecia
P.L. Nimis CC BY-SA 4.0
TSB 16802
Felix Schumm - CC BY-SA 4.0
[ABL51579], Taiwan, Taichung County, park of Natural History Museum,
on limestone, 100 m, 24°09’22’’ N, 120°40’03’’ E. Leg. A. Aptroot
(no 51579), 6.10.2001, det. A. Aptroot, 2002, conf. M. Schulz, 2005
Felix Schumm - CC BY-SA 4.0
[ABL51579], Taiwan, Taichung County, park of Natural History Museum,
on limestone, 100 m, 24°09’22’’ N, 120°40’03’’ E. Leg. A. Aptroot
(no 51579), 6.10.2001, det. A. Aptroot, 2002, conf. M. Schulz, 2005
Felix Schumm - CC BY-SA 4.0
[ABL51579], Taiwan, Taichung County, park of Natural History Museum,
on limestone, 100 m, 24°09’22’’ N, 120°40’03’’ E. Leg. A. Aptroot
(no 51579), 6.10.2001, det. A. Aptroot, 2002, conf. M. Schulz, 2005
Felix Schumm - CC BY-SA 4.0
[ABL51579], Taiwan, Taichung County, park of Natural History Museum,
on limestone, 100 m, 24°09’22’’ N, 120°40’03’’ E. Leg. A. Aptroot
(no 51579), 6.10.2001, det. A. Aptroot, 2002, conf. M. Schulz, 2005
Felix Schumm - CC BY-SA 4.0
[ABL51579], Taiwan, Taichung County, park of Natural History Museum,
on limestone, 100 m, 24°09’22’’ N, 120°40’03’’ E. Leg. A. Aptroot
(no 51579), 6.10.2001, det. A. Aptroot, 2002, conf. M. Schulz, 2005
Felix Schumm - CC BY-SA 4.0
[ABL51579], Taiwan, Taichung County, park of Natural History Museum,
on limestone, 100 m, 24°09’22’’ N, 120°40’03’’ E. Leg. A. Aptroot
(no 51579), 6.10.2001, det. A. Aptroot, 2002, conf. M. Schulz, 2005
Felix Schumm - CC BY-SA 4.0
[ABL51579], Taiwan, Taichung County, park of Natural History Museum,
on limestone, 100 m, 24°09’22’’ N, 120°40’03’’ E. Leg. A. Aptroot
(no 51579), 6.10.2001, det. A. Aptroot, 2002, conf. M. Schulz, 2005
Felix Schumm - CC BY-SA 4.0
[ABL51579], Taiwan, Taichung County, park of Natural History Museum,
on limestone, 100 m, 24°09’22’’ N, 120°40’03’’ E. Leg. A. Aptroot
(no 51579), 6.10.2001, det. A. Aptroot, 2002, conf. M. Schulz, 2005
Felix Schumm - CC BY-SA 4.0
[ABL51579], Taiwan, Taichung County, park of Natural History Museum,
on limestone, 100 m, 24°09’22’’ N, 120°40’03’’ E. Leg. A. Aptroot
(no 51579), 6.10.2001, det. A. Aptroot, 2002, conf. M. Schulz, 2005
Growth form: Crustose
Substrata: rocks
Photobiont: cyanobacteria, coccaceous (e.g. Gloeocapsa)
Reproductive strategy: mainly sexual
On otherwise dry surfaces with short periods of water seepage after rain
Commonnes-rarity: (info)
Alpine belt: absent
Subalpine belt: absent
Montane belt: very rare
Dry submediterranean belt: rare
Humid submediterranean belt: 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
P.L. Nimis CC BY-SA 04
TSB 16802
P.L. Nimis; Owner: Department of Life Sciences, University of Trieste
Herbarium: TSB (16802)
2001/12/11
thallus with apothecia
P.L. Nimis CC BY-SA 4.0
TSB 16802
Felix Schumm - CC BY-SA 4.0
[ABL51579], Taiwan, Taichung County, park of Natural History Museum, on limestone, 100 m, 24°09’22’’ N, 120°40’03’’ E. Leg. A. Aptroot (no 51579), 6.10.2001, det. A. Aptroot, 2002, conf. M. Schulz, 2005
Felix Schumm - CC BY-SA 4.0
[ABL51579], Taiwan, Taichung County, park of Natural History Museum, on limestone, 100 m, 24°09’22’’ N, 120°40’03’’ E. Leg. A. Aptroot (no 51579), 6.10.2001, det. A. Aptroot, 2002, conf. M. Schulz, 2005
Felix Schumm - CC BY-SA 4.0
[ABL51579], Taiwan, Taichung County, park of Natural History Museum, on limestone, 100 m, 24°09’22’’ N, 120°40’03’’ E. Leg. A. Aptroot (no 51579), 6.10.2001, det. A. Aptroot, 2002, conf. M. Schulz, 2005
Felix Schumm - CC BY-SA 4.0
[ABL51579], Taiwan, Taichung County, park of Natural History Museum, on limestone, 100 m, 24°09’22’’ N, 120°40’03’’ E. Leg. A. Aptroot (no 51579), 6.10.2001, det. A. Aptroot, 2002, conf. M. Schulz, 2005
Felix Schumm - CC BY-SA 4.0
[ABL51579], Taiwan, Taichung County, park of Natural History Museum, on limestone, 100 m, 24°09’22’’ N, 120°40’03’’ E. Leg. A. Aptroot (no 51579), 6.10.2001, det. A. Aptroot, 2002, conf. M. Schulz, 2005
Felix Schumm - CC BY-SA 4.0
[ABL51579], Taiwan, Taichung County, park of Natural History Museum, on limestone, 100 m, 24°09’22’’ N, 120°40’03’’ E. Leg. A. Aptroot (no 51579), 6.10.2001, det. A. Aptroot, 2002, conf. M. Schulz, 2005
Felix Schumm - CC BY-SA 4.0
[ABL51579], Taiwan, Taichung County, park of Natural History Museum, on limestone, 100 m, 24°09’22’’ N, 120°40’03’’ E. Leg. A. Aptroot (no 51579), 6.10.2001, det. A. Aptroot, 2002, conf. M. Schulz, 2005
Felix Schumm - CC BY-SA 4.0
[ABL51579], Taiwan, Taichung County, park of Natural History Museum, on limestone, 100 m, 24°09’22’’ N, 120°40’03’’ E. Leg. A. Aptroot (no 51579), 6.10.2001, det. A. Aptroot, 2002, conf. M. Schulz, 2005
