Gyalecta thelotremella Bagl.
N. Giorn. Bot. Ital., 11: 87, 1879.
Synonyms: Petractis thelotremella (Bagl.) Vězda
Description: Thallus crustose, thinly episubstratic or partly endosubstratic, 100-400 µm thick, continuous to finely rimose, pinkish white to yellowish white, turning white in the herbarium. Apothecia 0.2-0.3 mm across, immersed in the thallus and partly in the rock, at first covered with a thin thalline layer which soon disrupts leaving a kind of false thalline margin, appearing perithecioid when young, the disc later expanded, concave, pale yellow to flesh-coloured, smooth, surrounded by a thin, whitish proper margin. Proper exciple to 40 μm thick in upper part, colourless, often with crystals of calcium oxalates; epithecium colourless; hymenium colourless, 130-180 μm high; paraphyses 1.2-1.5 μm thick at mid-level, the apical cells hardly swollen; hypothecium colourless, c. 20 μm high. Asci 8-spored, thin-walled, lacking an apical apparatus or tholus, the wall K/I+ blue. Ascospores muriform with 3-5 transverse septa and 1-3 longitudinal septa, ellipsoid to broadly ovoid, 14-25 x 7-12 μm, not halonate. Pycnidia completely immersed in the thallus. Conidia bacilliform, straight, 6-7 x c. 1 μm. Photobiont trentepohlioid. Spot tests: thallus K-, C-, KC-, P-, UV-. Chemistry: without lichen substances.
Growth form: Crustose
Substrata: rocks
Photobiont: Trentepohlia
Reproductive strategy: mainly sexual
Taxon bound to maritime-coastal situations
Commonnes-rarity: (info)
Alpine belt: absent
Subalpine belt: absent
Montane belt: absent
Dry submediterranean belt: absent
Humid submediterranean belt: extremely 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 15955
P.L. Nimis CC BY-SA 04
TSB 38311
P.L. Nimis CC BY-SA 04
TSB 15955
Courtesy Danièle et Olivier Gonnet - Source: https://www.afl-lichenologie.fr/Photos_AFL/Photos_AFL_G/Textes_G1/Gyalecta_thelotremella.htm
France, session AFL 2015 dans le Lot, Blanzaguet
Courtesy Danièle et Olivier Gonnet - Source: https://www.afl-lichenologie.fr/Photos_AFL/Photos_AFL_G/Textes_G1/Gyalecta_thelotremella.htm
France, session AFL 2015 dans le Lot, Blanzaguet
Courtesy Danièle et Olivier Gonnet - Source: https://www.afl-lichenologie.fr/Photos_AFL/Photos_AFL_G/Textes_G1/Gyalecta_thelotremella.htm
France, session AFL 2015 dans le Lot, Blanzaguet
Courtesy Danièle et Olivier Gonnet - Source: https://www.afl-lichenologie.fr/Photos_AFL/Photos_AFL_G/Textes_G1/Gyalecta_thelotremella.htm
France, session AFL 2015 dans le Lot, Blanzaguet
Felix Schumm - CC BY 4.0
[VZ2389], Gallia. Corsica. Roccapina, 10 m. Ad sxa granitica. Leg. D.
Puntillo, 28.7.1989, det. A. Vezda. EX A. VEZDA LICHENES SELECTI
EXSICCATI NR. 2389.
Felix Schumm - CC BY 4.0
[VZ2389], Gallia. Corsica. Roccapina, 10 m. Ad sxa granitica. Leg. D.
Puntillo, 28.7.1989, det. A. Vezda. EX A. VEZDA LICHENES SELECTI
EXSICCATI NR. 2389.
Source: Vězda A. (1965) Preslia 37: 127-143 Flechtensystematische Studien I. Die Gattung Petractis Fr.
Source: Vězda A. (1965) Preslia 37: 127-143 Flechtensystematische Studien I. Die Gattung Petractis Fr.
Growth form: Crustose
Substrata: rocks
Photobiont: Trentepohlia
Reproductive strategy: mainly sexual
Taxon bound to maritime-coastal situations
Commonnes-rarity: (info)
Alpine belt: absent
Subalpine belt: absent
Montane belt: absent
Dry submediterranean belt: absent
Humid submediterranean belt: extremely 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 15955
P.L. Nimis CC BY-SA 04
TSB 38311
P.L. Nimis CC BY-SA 04
TSB 15955
Courtesy Danièle et Olivier Gonnet - Source: https://www.afl-lichenologie.fr/Photos_AFL/Photos_AFL_G/Textes_G1/Gyalecta_thelotremella.htm
France, session AFL 2015 dans le Lot, Blanzaguet
Courtesy Danièle et Olivier Gonnet - Source: https://www.afl-lichenologie.fr/Photos_AFL/Photos_AFL_G/Textes_G1/Gyalecta_thelotremella.htm
France, session AFL 2015 dans le Lot, Blanzaguet
Courtesy Danièle et Olivier Gonnet - Source: https://www.afl-lichenologie.fr/Photos_AFL/Photos_AFL_G/Textes_G1/Gyalecta_thelotremella.htm
France, session AFL 2015 dans le Lot, Blanzaguet
Courtesy Danièle et Olivier Gonnet - Source: https://www.afl-lichenologie.fr/Photos_AFL/Photos_AFL_G/Textes_G1/Gyalecta_thelotremella.htm
France, session AFL 2015 dans le Lot, Blanzaguet
Felix Schumm - CC BY 4.0
[VZ2389], Gallia. Corsica. Roccapina, 10 m. Ad sxa granitica. Leg. D. Puntillo, 28.7.1989, det. A. Vezda. EX A. VEZDA LICHENES SELECTI EXSICCATI NR. 2389.
Felix Schumm - CC BY 4.0
[VZ2389], Gallia. Corsica. Roccapina, 10 m. Ad sxa granitica. Leg. D. Puntillo, 28.7.1989, det. A. Vezda. EX A. VEZDA LICHENES SELECTI EXSICCATI NR. 2389.
Source: Vězda A. (1965) Preslia 37: 127-143 Flechtensystematische Studien I. Die Gattung Petractis Fr.
