Phylliscum demangeonii (Moug. & Mont.) Nyl.
Mém. Soc. Imp. Sc. Nat. Cherbourg, 3: 166, 1855. Basionym: Collema demangeonii Moug. & Montagne in Montagne - Ann. Sc. Bot., 3 sér., 12: 291, 1849.
Synonyms: Endocarpon phylliscum Wahlenb.; Phylliscum endocarpoides Nyl.
Description: Thallus squamulose-umbilicate, homoiomerous, gelatinous when wet, greyish black, forming more or less continuous dark patches. Squamules overlapping, somewhat inflated, hollow in central parts, attached by a broad central holdfast, up to 5(-8) mm wide, with incised, often slightly upturned margins and a more or less areolate upper surface. Ascomata punctiform and perithecioid, 5-15 per squamule, laminal, immersed in up to 0.4 mm wide thalline swellings, the ostiolar region visible as a small depression. Proper exciple distinct, surrounding the hymenium; hymenium colourless, I+ blue, without true paraphyses, but filled with anastomosing hyphae. Asci (8-)16(-24)-spored, inversely clavate, acuminate, thin-walled. Ascospores 1-celled, but often appearing 1-septate by plasma-bridges dissolving in K, hyaline, ellipsoid, 7-10 x 4-5 μm. Pycnidia immersed. Conidia needle-like, curved, 4-7 x 1-2 µm. Photobiont cyanobacterial, chroococcoid, with 15-35(-40) μm wide cells enclosed into 1-2, reddish-violet gelatinous sheaths. Spot tests: all negative. Chemistry: without lichen substances.
Growth form: Foliose, umbilicate
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: extremely 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
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Occurrence data
Predictive map
Source: Prieto M., Wedin M., Schultz M. 2024. Phylogeny, evolution and a re-classification of the Lichinomycetes. Studies in Mycology, 109: 595-655. - CC BY-NC-ND
Phylliscum demangeonii, squamulose, umbilicate-rosette shaped, pycnoascocarps remaining immersed and with pin hole discs (Schultz
16868). Scale bar: 1 mm
Einar Timdal, Natural History Museum, University of Oslo, Norway CC BY-SA-NC – Source: http://www.boldsystems.org/index.php/Taxbrowser_Taxonpage?taxid=481914
Pier Luigi Nimis - CC BY-SA 4.0
TSB 44044
Pier Luigi Nimis - CC BY-SA 4.0
TSB 44044
Wolfgang von Brackel - CC BY-4.0
Greenland, Suuluaqqap Qaqqaa
Curtis Randall Björk – CC BY-SA 4.0
Idaho, Idaho County, Selway River Date: 2005-06-05 On granite on shore of pristine river
Source: Prieto M., Wedin M., Schultz M. 2024. Phylogeny, evolution and a re-classification of the Lichinomycetes. Studies in Mycology, 109: 595-655. - CC BY-NC-ND
Phylliscum demangeonii, thallus rosulate, apothecia semi-immersed
(Schultz 16386). Scale bar: 1 mm.
Zahlbruckner A. 1926. Lichenes (Flechten). In: Engler A. (ed.): Die natürlichen Pflanzenfamilien. 2nd ed., vol 8, W. Engelmann, Leipzig, 270 pp.
Growth form: Foliose, umbilicate
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: extremely 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
Source: Prieto M., Wedin M., Schultz M. 2024. Phylogeny, evolution and a re-classification of the Lichinomycetes. Studies in Mycology, 109: 595-655. - CC BY-NC-ND
Phylliscum demangeonii, squamulose, umbilicate-rosette shaped, pycnoascocarps remaining immersed and with pin hole discs (Schultz 16868). Scale bar: 1 mm
Einar Timdal, Natural History Museum, University of Oslo, Norway CC BY-SA-NC – Source: http://www.boldsystems.org/index.php/Taxbrowser_Taxonpage?taxid=481914
Pier Luigi Nimis - CC BY-SA 4.0
TSB 44044
Pier Luigi Nimis - CC BY-SA 4.0
TSB 44044
Wolfgang von Brackel - CC BY-4.0
Greenland, Suuluaqqap Qaqqaa
Curtis Randall Björk – CC BY-SA 4.0
Idaho, Idaho County, Selway River Date: 2005-06-05 On granite on shore of pristine river
Source: Prieto M., Wedin M., Schultz M. 2024. Phylogeny, evolution and a re-classification of the Lichinomycetes. Studies in Mycology, 109: 595-655. - CC BY-NC-ND
Phylliscum demangeonii, thallus rosulate, apothecia semi-immersed (Schultz 16386). Scale bar: 1 mm.
