Pyrenodesmia alociza (A. Massal.) Arnold
Flora, 67: 310, 1884. Basionym: Biatorina alociza A. Massal. - Symmicta Lich.: 42, 1855.
Synonyms: Caloplaca alociza (A. Massal.) Mig.; Lecaniella alociza (A. Massal.) Jatta; Lecanora variabilis f. ecrustacea Nyl.; Placodium variabile var. ecrustaceum (Nyl.) Nyl.; Sporoblastia alocyza (A. Massal.) Trevis.
Description: Thallus crustose, endosubstratic or (rarely) very thinly episubstratic, white to grey, sometimes with a violet tinge, often delimited by a dark prothalline line. Apothecia 0.2-0.8(-1) mm across, often slightly immersed in shallow pits of the rock, with a flat to slightly convex, epruinose or slightly pruinose, black disc and a thin, soon excluded proper margin. Proper exciple brown in outer part, colourless to brownish within, the pigmented parts K+ violet; epithecium grey to brownish (in thick sections), with or without a layer of crystals, K+ violet; hymenium colourless, with scattered crystals and with numerous extracellular oil droplets; apical cells of paraphyses up to 5 μm wide; hypothecium colourless. Asci 8-spored, clavate, functionally unitunicate, apically thickened with a broad internal beak, the inner part of apex and external cap I+ blue, Teloschistes-type. Ascospores 2-celled, polarilocular, hyaline, ellipsoid, (11-)15-18(-21) x (6-)7-8(-11) μm, the equatorial thickening (“septum”) 2.5-3(-5) μm. Photobiont chlorococcoid. Spot tests: thallus K- or K+ faintly violet, C-, KC-, P-, UV-; pigmented parts of apothecia K+ violet and sometimes N+ pale violet. Chemistry: apothecia and sometimes thallus with the Sedifolia-grey pigment.
Growth form: Crustose endolithic
Substrata: rocks
Photobiont: green algae other than Trentepohlia
Reproductive strategy: mainly sexual
Commonnes-rarity: (info)
Alpine belt: common
Subalpine belt: very common
Montane belt: extremely common
Dry submediterranean belt: common
Humid submediterranean belt: common
Padanian area: rare
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

Felix Schumm - CC BY-SA 4.0
[2193], Jugoslavien, Sibenik, auf sonnigem Kalkgeröll bei Jadrija. Leg .et det. Schumm 1970, test. H. Wunder 1973.

Andrea Moro; Owner: Department of Life Sciences, University of Triedte
Italy, Friuli Venezia Giulia, Trieste, Trieste Karst, Rocca di Monrupino
20/02/2017

Andrea Moro; Owner: Department of Life Sciences, University of Triedte
Italy, Friuli Venezia Giulia, Trieste, Trieste Karst, Rocca di Monrupino
20/02/2017

Andrea Moro; Owner: Department of Life Sciences, University of Triedte
Italy, Friuli Venezia Giulia, Trieste, Trieste Karst, Rocca di Monrupino
20/02/2017

P.L. Nimis; Owner: Department of Life Sciences, University of Trieste
Herbarium: TSB (15613)
2001/12/18

Felix Schumm - CC BY-SA 4.0
[2193], Jugoslavien, Sibenik, auf sonnigem Kalkgeröll bei Jadrija. Leg .et det. Schumm 1970, test. H. Wunder 1973.

Felix Schumm - CC BY-SA 4.0
[2193], Jugoslavien, Sibenik, auf sonnigem Kalkgeröll bei Jadrija. Leg .et det. Schumm 1970, test. H. Wunder 1973.

Felix Schumm - CC BY-SA 4.0
[2193], Jugoslavien, Sibenik, auf sonnigem Kalkgeröll bei Jadrija. Leg .et det. Schumm 1970, test. H. Wunder 1973.

Felix Schumm - CC BY-SA 4.0
[2193], Jugoslavien, Sibenik, auf sonnigem Kalkgeröll bei Jadrija. Leg .et det. Schumm 1970, test. H. Wunder 1973.

Felix Schumm - CC BY-SA 4.0
[2193], Jugoslavien, Sibenik, auf sonnigem Kalkgeröll bei Jadrija. Leg .et det. Schumm 1970, test. H. Wunder 1973.

Felix Schumm - CC BY-SA 4.0
[2193], Jugoslavien, Sibenik, auf sonnigem Kalkgeröll bei Jadrija. Leg .et det. Schumm 1970, test. H. Wunder 1973.

Felix Schumm - CC BY-SA 4.0
[2193], Jugoslavien, Sibenik, auf sonnigem Kalkgeröll bei Jadrija. Leg .et det. Schumm 1970, test. H. Wunder 1973.

Courtesy Danièle et Olivier Gonnet - Source: https://www.afl-lichenologie.fr/Photos_AFL/Photos_AFL_P/Text_P_5/Pyrenodesmia_alociza.htm
France, session AFL août 2005 en Lozère

Courtesy Danièle et Olivier Gonnet - Source: https://www.afl-lichenologie.fr/Photos_AFL/Photos_AFL_P/Text_P_5/Pyrenodesmia_alociza.htm
France, session AFL août 2005 en Lozère
Growth form: Crustose endolithic
Substrata: rocks
Photobiont: green algae other than Trentepohlia
Reproductive strategy: mainly sexual
Commonnes-rarity: (info)
Alpine belt: common
Subalpine belt: very common
Montane belt: extremely common
Dry submediterranean belt: common
Humid submediterranean belt: common
Padanian area: rare
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

Felix Schumm - CC BY-SA 4.0
[2193], Jugoslavien, Sibenik, auf sonnigem Kalkgeröll bei Jadrija. Leg .et det. Schumm 1970, test. H. Wunder 1973.

Andrea Moro; Owner: Department of Life Sciences, University of Triedte
Italy, Friuli Venezia Giulia, Trieste, Trieste Karst, Rocca di Monrupino
20/02/2017

Andrea Moro; Owner: Department of Life Sciences, University of Triedte
Italy, Friuli Venezia Giulia, Trieste, Trieste Karst, Rocca di Monrupino
20/02/2017

Andrea Moro; Owner: Department of Life Sciences, University of Triedte
Italy, Friuli Venezia Giulia, Trieste, Trieste Karst, Rocca di Monrupino
20/02/2017

P.L. Nimis; Owner: Department of Life Sciences, University of Trieste
Herbarium: TSB (15613)
2001/12/18

Felix Schumm - CC BY-SA 4.0
[2193], Jugoslavien, Sibenik, auf sonnigem Kalkgeröll bei Jadrija. Leg .et det. Schumm 1970, test. H. Wunder 1973.

Felix Schumm - CC BY-SA 4.0
[2193], Jugoslavien, Sibenik, auf sonnigem Kalkgeröll bei Jadrija. Leg .et det. Schumm 1970, test. H. Wunder 1973.

Felix Schumm - CC BY-SA 4.0
[2193], Jugoslavien, Sibenik, auf sonnigem Kalkgeröll bei Jadrija. Leg .et det. Schumm 1970, test. H. Wunder 1973.

Felix Schumm - CC BY-SA 4.0
[2193], Jugoslavien, Sibenik, auf sonnigem Kalkgeröll bei Jadrija. Leg .et det. Schumm 1970, test. H. Wunder 1973.

Felix Schumm - CC BY-SA 4.0
[2193], Jugoslavien, Sibenik, auf sonnigem Kalkgeröll bei Jadrija. Leg .et det. Schumm 1970, test. H. Wunder 1973.

Felix Schumm - CC BY-SA 4.0
[2193], Jugoslavien, Sibenik, auf sonnigem Kalkgeröll bei Jadrija. Leg .et det. Schumm 1970, test. H. Wunder 1973.

Felix Schumm - CC BY-SA 4.0
[2193], Jugoslavien, Sibenik, auf sonnigem Kalkgeröll bei Jadrija. Leg .et det. Schumm 1970, test. H. Wunder 1973.

Courtesy Danièle et Olivier Gonnet - Source: https://www.afl-lichenologie.fr/Photos_AFL/Photos_AFL_P/Text_P_5/Pyrenodesmia_alociza.htm
France, session AFL août 2005 en Lozère
